MPLS Layer 2 VPNs Configuration Guide, Cisco IOS XE Release 3S
L2VPN Interworking
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L2VPN Interworking

Contents

L2VPN Interworking

Interworking is a transforming function that is required to interconnect two heterogeneous attachment circuits (ACs). Several types of interworking functions exist. The function that is used would depend on the type of ACs being used, the type of data being carried, and the level of functionality required. The two main Layer 2 Virtual Private Network (L2VPN) interworking functions supported in Cisco IOS XE software are bridged and routed interworking.

Layer 2 (L2) transport over multiprotocol label switching (MPLS) and IP already exists for like-to-like ACs, such as Ethernet-to-Ethernet or Point-to-Point Protocol (PPP)-to-PPP. L2VPN Interworking builds on this functionality by allowing disparate ACs to be connected. An interworking function facilitates the translation between different L2 encapsulations.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Prerequisites for L2VPN Interworking

Before you configure L2VPN interworking on a router you must enable Cisco Express Forwarding.

Restrictions for L2VPN Interworking

General Restrictions for L2VPN Interworking

This section lists general restrictions that apply to L2VPN interworking. Other restrictions that are platform-specific or device-specific are listed in the following sections.

  • MTU configured on the AC should not exceed the MTU in the core of the network because fragmentation is not supported.
  • The interworking type on one provider edge (PE) router must match the interworking type on the peer PE router.
  • IP Interworking with native VLANs is not supported.
  • Only the following quality of service (QoS) features are supported with L2VPN interworking:
    • Static IP type of service (ToS) or MPLS experimental bit (EXP) setting in tunnel header
    • One-to-one mapping of VLAN priority bits to MPLS EXP bits

Routed Interworking Restrictions

Routed interworking has the following restrictions:

  • Multipoint Frame Relay (FR) is not supported.
  • QoS classification on IP ToS, DSCP and other IP header fields is not supported.
  • Security access control list (ACL) and other features based on IP header fields parsing are not supported.
  • In routed mode, only one customer edge (CE) router can be attached to an Ethernet PE router.
  • There must be a one-to-one relationship between an AC and the pseudowire. Point-to-multipoint or multipoint-to-point configurations are not supported.
  • You must configure routing protocols for point-to-point operation on the CE routers when configuring an Ethernet to non-Ethernet setup.
  • In the IP interworking mode, the IPv4 (0800) translation is supported. The PE router captures Address Resolution Protocol (ARP) (0806) packets and responds with its own MAC address (proxy ARP). Everything else is dropped.
  • The Ethernet must contain only two IP devices: PE router and CE router. The PE router performs proxy ARP and responds to all ARP requests it receives. Therefore, only one CE router and one PE router should be on the Ethernet segment.
  • If the CE routers are doing static routing, you can perform the following tasks:
    • The PE router needs to learn the MAC address of the CE router to correctly forward traffic to it. The Ethernet PE router sends an Internet Control Message Protocol (ICMP) Router Discovery Protocol (RDP) solicitation message with the source IP address as zero. The Ethernet CE router responds to this solicitation message. To configure the Cisco CE router’s Ethernet interface to respond to the ICMP RDP solicitation message, issue the ip irdp command in interface configuration mode. If you do not configure the CE router, traffic is dropped until the CE router sends traffic toward the PE router.
    • To disable the CE routers from running the router discovery protocol, issue the ip irdp maxadvertinterval 0 command in interface configuration mode.
  • When you change the interworking configuration on an Ethernet PE router, clear the ARP entry on the adjacent CE router so that it can learn the new MAC address. Otherwise, you might experience traffic drops.

PPP Interworking Restrictions

The following restrictions apply to PPP interworking:

  • There must be a one-to-one relationship between a PPP session and the pseudowire. Multiplexing of multiple PPP sessions over the pseudowire is not supported.
  • Only IP (IPv4 (0021) interworking is supported. Link Control Protocol (LCP) packets and Internet Protocol Control Protocol (IPCP) packets are terminated at the PE router. Everything else is dropped.
  • By default, the PE router assumes that the CE router knows the remote CE router’s IP address.
  • Password Authentication Protocol (PAP) and Challenge-Handshake Authentication Protocol (CHAP) authentication are supported.

Ethernet VLAN-to-ATM AAL5 Interworking Restrictions

The Ethernet/VLAN to ATM AAL5 Any Transport over MPLS (AToM) has the following restrictions:

  • Only the following translations are supported; other translations are dropped:
    • Ethernet without LAN FCS (AAAA030080C200070000)
    • Spanning tree (AAAA030080C2000E)
  • The ATM encapsulation type supported for bridged interworking is aal5snap. However, ATM encapsulation types supported for routed interworking are aal5snap and aal5mux.
  • The existing QoS functionality for ATM is supported, including setting the ATM CLP bit.
  • Only ATM AAL5 VC mode is supported. ATM VP and port mode are not supported.
  • SVCs are not supported.
  • Individual AAL5 ATM cells are assembled into frames before being sent across the pseudowire.
  • Non-AAL5 traffic, (such as Operation, Administration, and Maintenance (OAM) cells) is punted to be processed at the route processor (RP) level. A VC that has been configured with OAM cell emulation on the ATM PE router (using the oam-ac emulation-enable CLI command) can send end-to-end F5 loopback cells at configured intervals toward the CE router.
  • When the pseudowire is down, an F5 end-to-end segment alarm indication signal/remote defect indication (AIS/RDI) is sent from the PE router to the CE router.
  • If the Ethernet frame arriving from the Ethernet CE router includes a 802.1Q header (VLAN header), due to the type of endpoint attachment (Ethernet port mode), the VLAN header stays in the frame across the pseudowire (see the figure below).
Figure 1. Protocol Stack for ATM-to-Ethernet AToM Bridged Interworking--with VLAN Header

Ethernet VLAN-to-Frame Relay Interworking Restrictions

The Ethernet/VLAN-to-Frame Relay AToM has the following restrictions:

  • Only the following translations are supported; other translations are dropped:
    • Ethernet without LAN FCS (0300800080C20007)
    • Spanning tree (0300800080C2000E)
  • The PE router automatically supports translation of both Cisco and IETF Frame Relay encapsulation types coming from the CE router, but translates only to IETF when sending to the CE router. This is not a problem for the Cisco CE router, because it can manage IETF encapsulation upon receipt even if it is configured to send a Cisco encapsulation.
  • The PVC status signaling works the same way as in the like-to-like case. The PE router reports the PVC status to the CE router based upon the availability of the pseudowire.
  • The AC maximum transmission unit (MTU) must be within the supported range of MTUs when connected over MPLS.
  • Only Frame Relay DLCI mode is supported. Frame Relay port mode is not supported.
  • If the Ethernet frame includes a 802.1Q header (VLAN header), due to the type of endpoint attachment (Ethernet port mode), the VLAN header stays in the frame across the pseudowire (see the figure below).
  • Frame Relay encapsulation types supported for routed interworking are Cisco and IETF for incoming traffic. However, IETF is also supported for outgoing traffic traveling to the CE router.
Figure 2. Protocol Stack for Frame Relay-to-Ethernet AToM Bridged Interworking--with VLAN Header

Information About L2VPN Interworking

Overview of L2VPN Interworking

L2 transport over MPLS and IP already exists for like-to-like ACs, such as Ethernet-to-Ethernet or PPP-to-PPP. L2VPN Interworking builds on this functionality by allowing disparate ACs to be connected. An interworking function facilitates the translation between the different L2 encapsulations.

Only the following interworking combinations are supported in Cisco IOS XE Release 3.3S:

  • ATM-to-Ethernet - Routed interworking
  • ATM-to-Ethernet - Bridged interworking
  • Frame relay-to-Ethernet - Bridged interworking
  • PPP-to-Ethernet - IP interworking

L2VPN Interworking Modes

L2VPN interworking works in either Ethernet (bridged) mode or IP (routed) mode. You specify the mode by issuing the interworking {ethernet | ip} command in pseudowire-class configuration mode.

The interworking command causes the ACs to be terminated locally. The two keywords perform the following functions:

  • The ethernet keyword causes Ethernet frames to be extracted from the AC and sent over the pseudowire. Ethernet end-to-end transmission is resumed. AC frames that are not Ethernet are dropped. In the case of VLAN, the VLAN tag is removed, leaving an untagged Ethernet frame.
  • The ip keyword causes IP packets to be extracted from the AC and sent over the pseudowire. AC frames that do not contain IPv4 packets are dropped.

The following sections explain more about Ethernet and IP interworking modes.

Ethernet or Bridged Interworking

Ethernet interworking is also called bridged interworking. Ethernet frames are bridged across the pseudowire. The CE routers could be natively bridging Ethernet or could be routing using a bridged encapsulation model, such as Bridge Virtual Interface (BVI) or Routed Bridge Encapsulation (RBE). The PE routers operate in Ethernet like-to-like mode.

This mode is used to offer the following services:

  • LAN services--An example is an enterprise that has several sites, where some sites have Ethernet connectivity to the service provider (SP) network and others have ATM connectivity. If the enterprise wants LAN connectivity to all its sites, traffic from the Ethernet or VLAN of one site can be sent through the IP/MPLS network and encapsulated as bridged traffic over an ATM VC of another site.
  • Connectivity services--An example is an enterprise that has different sites that are running an Internal Gateway Protocol (IGP) routing protocol, which has incompatible procedures on broadcast and nonbroadcast links. The enterprise has several sites that are running an IGP, such as Open Shortest Path First (OSPF) or Intermediate System-to-Intermediate System (IS-IS), between the sites. In this scenario, some of the procedures (such as route advertisement or designated router) depend on the underlying L2 protocol and are different for a point-to-point ATM connection versus a broadcast Ethernet connection. Therefore, the bridged encapsulation over ATM can be used to achieve homogenous Ethernet connectivity between the CE routers running the IGP.

IP or Routed Interworking

IP interworking is also called routed interworking. The CE routers encapsulate the IP on the link between the CE router and PE router. A new VC type is used to signal the IP pseudowire in MPLS. Translation between the L2 and IP encapsulations across the pseudowire is required. Special consideration needs to be given to the address resolution and routing protocol operation, because these are handled differently on different L2 encapsulations.

This mode is used to provide IP connectivity between sites, regardless of the L2 connectivity to these sites. It is different from a Layer 3 VPN because it is point-to-point in nature and the service provider does not maintain any customer routing information.

Address resolution is encapsulation dependent:

  • Ethernet uses ARP
  • ATM uses inverse ARP
  • PPP uses IPCP

Therefore, address resolution must be terminated on the PE router. End-to-end address resolution is not supported. Routing protocols operate differently over broadcast and point-to-point media. For Ethernet, the CE routers must either use static routing or configure the routing protocols to treat the Ethernet side as a point-to-point network.

In routed interworking, IP packets that are extracted from the ACs are sent over the pseudowire. The pseudowire works in the IP Layer 2 transport (VC type 0x000B) like-to-like mode. The interworking function at network service provider’s (NSP) end performs the required adaptation based on the AC technology. Non-IPv4 packets are dropped.

In routed interworking, the following considerations are to be kept in mind:

  • Address resolution packets (ARP), inverse ARP, and IPCP are punted to the routing protocol. Therefore, NSP at the PE router must provide the following functionality for address resolution:
    • Ethernet--PE device acts as a proxy-ARP server to all ARP requests from the CE router. The PE router responds with the MAC address of its local interface.
    • ATM and Frame Relay point-to-point--By default, inverse ARP does not run in the point-to-point Frame Relay or ATM subinterfaces. The IP address and subnet mask define the connected prefix; therefore, configuration is not required in the CE devices.
  • Interworking requires that the MTUs in both ACs match for the pseudowire to come up. The default MTU in one AC should match with the MTU of other AC. The table below lists the range of MTUs that can be configured for different ACs.
Table 1 Range of MTUs for Different ACs

AC type

Range of MTUs supported

ATM

64 to 17940

Gigabit Ethernet

1500 to 4470

POS

64to 9102

Fast Ethernet

64to 9192


Note


The MTU configured on the AC should not exceed the MTU in the core network. This ensures that the traffic is not fragmented.


  • The CE routers with Ethernet attachment VCs running OSPF must be configured with the ospfIfTypeoption so that the OSPF protocol treats the underlying physical broadcast link as a P2P link.

Ethernet VLAN-to-ATM AAL5 Interworking

The following topics are covered in this section:

ATM AAL5-to-Ethernet Port AToM--Bridged Interworking

This interworking type provides interoperability between the ATM attachment VC and Ethernet attachment VC connected to different PE routers. Bridged encapsulation corresponding to the bridged (Ethernet) interworking mechanism is used.

The interworking function is performed at the PE router connected to the ATM attachment VC based on multiprotocol encapsulation over ATM AAL5 (see the figure below).

Figure 3. Network Topology for ATM-to-Ethernet AToM Bridged Interworking

The advantage of this architecture is that the Ethernet PE router (connected to the Ethernet segment) operates similarly to Ethernet like-to-like services.

On the PE router with interworking function, in the direction from the ATM segment to MPLS cloud, the bridged encapsulation (ATM/subnetwork access protocol (SNAP) header) is discarded and the Ethernet frame is encapsulated with the labels required to go through the pseudowire using the VC type 5 (Ethernet) (see the figure below).

In the opposite direction, after the label disposition from the MPLS cloud, Ethernet frames are encapsulated over AAL5 using bridged encapsulation.

The figure below shows the protocol stack for ATM-to-Ethernet AToM bridged interworking. The ATM side has an encapsulation type of aal5snap.

Figure 4. Protocol Stack for ATM-to-Ethernet AToM Bridged Interworking--without VLAN Header

ATM AAL5-to-Ethernet VLAN 802.1Q AToM--Bridged Interworking

This interworking type provides interoperability between the ATM attachment VC and Ethernet VLAN attachment VC connected to different PE routers. Bridged encapsulation corresponding to the bridged (Ethernet) interworking mechanism is used.

The interworking function is performed in the same way as for the ATM-to-Ethernet port case, implemented on the PE router connected to the ATM attachment VC. The implementation is based on multiprotocol encapsulation over ATM AAL5 (see the figure below).

For the PE router connected to the Ethernet side, one major difference exists due the existence of the VLAN header in the incoming packet. The PE router discards the VLAN header of the incoming frames from the VLAN CE router, and the PE router inserts a VLAN header into the Ethernet frames traveling from the MPLS cloud. The frames sent on the pseudowire (with VC type 5) are Ethernet frames without the VLAN header.

Encapsulation over ATM AAL5 is shown in the figure below.

Figure 5. Protocol Stack for ATM -to-VLAN AToM Bridged Interworking

ATM-to-Ethernet--Routed Interworking

To perform routed interworking, both the ATM PE router and Ethernet PE router must be configured. The figure below shows the routed interworking between ATM to Ethernet. The IP encapsulation over the pseudowire is performed on the ATM packets arriving from the ATM CE router.

The address resolution is done at the ATM PE router; it is required when the ATM CE router does an inverse ARP. It is not required when the ATM CE router is configured using Point-to-Point (P2P) subinterfaces or static maps.

When packets arrive from the Ethernet CE router, the Ethernet PE router removes the L2 frame tag, and then forwards the IP packet to the egress PE router, using IPoMPLS encapsulation over the pseudowire. The Ethernet PE router makes the forwarding decision based on the L2 circuit ID, the VLAN ID, or port ID, of the incoming L2 frame. At the ATM PE router, after label disposition, the IP packets are encapsulated over the AAL5 using routed encapsulation based on RFC 2684.

The address resolution at the Ethernet PE router can be done when the Ethernet CE router configures the static ARP, or by the proxy ARP on the Ethernet PE router. If the proxy ARP is used, the IP address of the remote CE router can be learned dynamically.

Routing protocols need to be configured to operate in the P2P mode on the Ethernet CE router.

Figure 6. Protocol Stack for ATM-to-Ethernet--Routed Interworking

Ethernet VLAN-to-Frame Relay Interworking

The following topics are covered in this section:

Frame Relay DLCI-to-Ethernet Port AToM--Bridged Interworking

This interworking type provides interoperability between the Frame Relay attachment VC and Ethernet attachment VC connected to different PE routers. Bridged encapsulation corresponding to the bridged (Ethernet) interworking mechanism is used.

For an FR-to-Ethernet port case, the interworking function is performed at the PE router connected to the FR attachment VC based on multiprotocol interconnect over Frame Relay (see the figure below). The interworking is implemented similar to an ATM-to-Ethernet case.

Figure 7. Network Topology for FR-to-Ethernet AToM Bridged Interworking

The advantage of this architecture is that the Ethernet PE router (connected to the Ethernet segment) operates similar to Ethernet like-to-like services: a pseudowire label is assigned to the Ethernet port and then the remote Label Distribution Protocol (LDP) session distributes the labels to its peer PE router. Ethernet frames are carried through the MPLS network using Ethernet over MPLS (EoMPLS).

On the PE router with interworking function, in the direction from the Frame Relay segment to the MPLS cloud, the bridged encapsulation (FR/SNAP header) is discarded and the Ethernet frame is encapsulated with the labels required to go through the pseudowire using the VC type 5 (Ethernet) (see the figure below).

In the opposite direction, after the label disposition from the MPLS cloud, Ethernet frames are encapsulated over Frame Relay using bridged encapsulation.

The following translations are supported:

  • Ethernet without LAN FCS (0300800080C20007)
  • Spanning tree (0300800080C2000E)

The PE router automatically supports translation of both Cisco and IETF Frame Relay encapsulation types coming from the CE, but translates only to IETF when sending to the CE router. This is not a problem for the Cisco CE router, because it can handle IETF encapsulation on receipt even if it is configured to send Cisco encapsulation.

The existing QoS functionality for Frame Relay is supported. The PVC status signaling works the same way as in the like-to-like case. The PE router reports the PVC status to the CE router, based on the availability of the pseudo wire.

The AC MTU must match when connected over MPLS. Only Frame Relay DLCI mode is supported; Frame Relay port mode is not supported in the bridged interworking.

The figure below shows the protocol stack for FR-to-Ethernet bridged interworking.

Figure 8. Protocol Stack for FR-to-Ethernet AToM Bridged Interworking--without VLAN Header

Frame Relay DLCI-to-Ethernet VLAN 802.1Q AToM--Bridged Interworking

This interworking type provides interoperability between the Frame Relay attachment VC and Ethernet VLAN Attachment VC connected to different PE routers. The bridged encapsulation corresponding to the bridged (Ethernet) interworking mechanism is used.

The interworking function is performed in the same way as it is done for the Frame Relay to Ethernet port case; it is implemented on the PE router connected to the Frame Relay attachment VC, based upon a multiprotocol interconnect over Frame Relay (see the figure above).

As in the ATM-to-VLAN case, one difference exists on the Ethernet side due the existence of the VLAN header in the incoming packet. The PE router on the VLAN side discards the VLAN header of the incoming frames from the VLAN CE router, and the PE router inserts a VLAN header into the Ethernet frames traveling from the MPLS cloud. The frames sent on the pseudowire (with VC type 5) are Ethernet frames without the VLAN header.

The figure below shows the protocol stack for FR-to-VLAN AToM bridged interworking.

Figure 9. Protocol Stack for FR-to-VLAN AToM Bridged Interworking

Frame Relay DLCI-to-Ethernet VLAN Qot1Q QinQ AToM - Bridged Interworking

This interworking type provides interoperability between the Frame Relay Attachment VC and Ethernet VLAN Attachment VC connected to different PE routers. The bridged encapsulation corresponding to bridged (Ethernet) interworking mechanism is used.

The interworking function is done in the same way as it is done for FR-to-Ethernet port case; it is implemented on the PE router connected to the Frame Relay attachment VC, based on RFC 2427(Multiprotocol Interconnect over Frame Relay).

When compared with Frame Relay DLCI-to-Ethernet port AToM, there is one major difference on the Ethernet access side, due the existence of the VLAN header in the incoming packet. The PE router on the VLAN side will discard the VLAN header of the incoming frames form the VLAN CE router, and it will insert a VLAN header into the Ethernet frames coming from the MPLS cloud. So the frames sent on the pseudo wire (with VC type 5) will be Ethernet frames without the VLAN header.

The following translations are supported on the Frame Relay PE router:

  • Ethernet without LAN FCS (0300800080C20007)
  • Spanning tree (0300800080C2000E)

Frame Relay encapsulation types supported for bridged interworking: Cisco and IETF for incoming traffic, IETF only for outgoing traffic towards CE router.

ATM Local Switching

  • ATM like-to-like local switching allows switching data between two physical interfaces where both the segments are of ATM type. The two interfaces must be on the same PE router. The table below lists the supported ATM local switching combinations.
Table 2 ATM local switching - supported combinations

Same port Point-to-Point

Different port Point-to-Point

Same Port Multipoint

Different Port

Multipoint

Port Mode

No

No

No

No

VC-to-VC AAL0

Yes

Yes

Yes

Yes

VC-to-VC AAL5

Yes

Yes

Yes

Yes

VP-to-VP AAL0

No

No

Yes

Yes

VP-to-VP AAL5

No

No

No

No

The following topics are covered in this section:

VC-to-VC Local Switching

VC-to-VC local switching transports cells between two ATM attachment VCs on the same or different port on the PE router. The cells coming to the PE router can be AAL0 or AAL5 encapsulated ATM packets. ATM VC-to-VC local switching can be configured either on point-to-point interface or on multipoint interface.

There are two operation modes for managing OAM cells over ATM local switching interfaces:

  • OAM transparent mode: In this mode, the PE router transports F5 OAM cells transparently across local switching interfaces.
  • OAM local emulation mode: In this mode, the PE router does not transport OAM cells across local switching interfaces. Instead, the interfaces locally terminate and process F5 OAM cells.

In ATM single cell relay AAL0, the ATM virtual path identifier/virtual channel identifier (VPI/VCI) values of the ingress and egress ATM interfaces of a router must match. If L2 local switching is desired between two ATM VPIs and VCIs, which are on two different interfaces and have values that do not match, ATM AAL5 should be selected. However, if ATM AAL5 uses OAM transparent mode, the VPI and VCI values must match.

ATM OAM can be configured on ATM VC mode local switching AC using the oam-ac emulation-enableand oam-pvc manage commands. When emulation is enabled on the AC, all OAM cells going through the AC are punted to RP for local processing. The ATM common component processes OAM cells and forwards the cells towards the local CE router. This helps to detect the failures on the PE router by monitoring the response at the CE router end. When the oam-pvc manage command is enabled on the AC, the PVC generates end-to-end OAM loopback cells that verify connectivity on the VC.

The following example shows a sample configuration on the ATM PE router:

configure terminal
interface atm 4/0.50 multipoint
	no ip address
 	no atm enable-ilmi-trap
pvc 100/100 l2transport
	encapsulation aal5
	oam-ac emulation-enable
	oam-pvc manage
interface atm 5/0.100 multipoint
	no ip address
	no atm enable-ilmi-trap
	pvc 100/100 l2transport
		encapsulation aal5
		oam-ac emulation-enable
		oam-pvc manage
connect atm_ls atm 4/0 100/100 atm 5/0 100/100

VP-to-VP Local Switching

VP-to-VP local switching transports cells between two VPs on the same port or different ports on the PE router. The cells coming to the PE router can be AAL0 encapsulated ATM packets only. ATM VP-to-VP local switching can be configured only on multipoint interfaces.

There are two operation modes for managing OAM cells over ATM local switching interfaces:

  • OAM transparent mode: In this mode, the PE router transports F4 OAM cells transparently across local switching interfaces.
  • OAM local emulation mode: In this mode, the PE router do not transport OAM cells across local switching interfaces. Instead, the interfaces locally terminate and process F4 OAM cells.

In ATM single cell relay AAL0, the ATM VPI values of the ingress and egress ATM interfaces on a router must match. If L2 switching is desired between two ATM VPIs which are on two different interfaces and have values that do not match, ATM AAL5 should be selected. If ATM AAL5 uses OAM transparent mode, the VPI value must match. Currently, the ATM VP-to-VP local switching supports only AAL0 encapsulation.

ATM OAM can be configured on the ATM VP mode local switching AC using the oam-ac emulation-enable command. When emulation is enabled on the AC, all OAM cells going through the AC are punted to RP for local processing. The ATM common component processes the OAM cells and forwards the cells towards the local CE router. This helps to detect failures on the PE router by monitoring the response at the CE router’s end.

The following example shows a sample configuration on the ATM PE router:

configure terminal
interface atm 4/0.100 multipoint
	no ip address
 	no atm enable-ilmi-trap
atm pvp 100 l2transport
	encapsulation aal5
	oam-ac emulation-enable
interface atm 5/0.100 multipoint
	no ip address
	no atm enable-ilmi-trap
	atm pvp 100 l2transport
		encapsulation aal5
		oam-ac emulation-enable
connect atm_ls atm 4/0 100 atm 5/0 100

PPP-to-Ethernet AToM-Routed Interworking

In this interworking type, one of the ACs is Ethernet and the other is PPP. Each link is terminated locally on the corresponding PE routers and the extracted layer 3 (L3) packets are transported over a pseudowire.

The PE routers connected to Ethernet and PPP ACs terminate their respective L2 protocols. The PPP session is terminated for both the LCP and the Network Control Protocol (NCP) layers. On the ingress PE router, after extracting L3 packets, each PE router forwards the packets over the already established pseudowire using MPoMPLS encapsulation. On the egress PE router, after performing label disposition, the packets are encapsulated based on the corresponding link layer and are sent to the respective CE router. This interworking scenario requires the support of MPoMPLS encapsulation by the PE routers.

In PPP-to-Ethernet AToM routed interworking mode IPCP is supported. Proxy IPCP is automatically enabled on the PE router when IP interworking is configured on the pseudowire. By default, the PE router gets the IP address it needs to use from the CE router. The PE router accomplishes this by sending an IPCP confreq with the IP address 0.0.0.0. The local CE router has the remote CE router's IP address configured on it. The following example shows a sample configuration on the PPP CE router:

interface serial2/0
 ip address 168.65.32.13 255.255.255.0
 encapsulation ppp
peer default ip address 168.65.32.14  *

If the remote CE router's IP address cannot be configured on the local CE router, then the remote CE router's IP address can be configured on the PE router using the ppp ipcp address proxy ip address command on the xconnect PPP interface of PE router. The following example shows a sample configuration on the PPP PE router:

pseudowire-class mp
 encapsulation mpls
 protocol ldp
 interworking ip
!
int se2/0
 encap ppp
 xconnect 10.0.0.2 200 pw-class mp
 ppp ipcp address proxy 168.65.32.14 

PPP-to-Ethernet AToM-Routed Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature

In this interworking type, one of the ACs is Ethernet and the other is PPP. Each link is terminated locally on the corresponding PE routers and the extracted layer 3 (L3) packets are transported over a pseudowire.

The PE routers connected to Ethernet and PPP ACs terminate their respective L2 protocols. The PPP session is terminated for both the LCP and the Network Control Protocol (NCP) layers. On the ingress PE router, after extracting L3 packets, each PE router forwards the packets over the already established pseudowire using MPoMPLS encapsulation. On the egress PE router, after performing label disposition, the packets are encapsulated based on the corresponding link layer and are sent to the respective CE router. This interworking scenario requires the support of MPoMPLS encapsulation by the PE routers.

In PPP-to-Ethernet AToM routed interworking mode IPCP is supported. Proxy IPCP is automatically enabled on the PE router when IP interworking is configured on the pseudowire. By default, the PE router gets the IP address it needs to use from the CE router. The PE router accomplishes this by sending an IPCP confreq with the IP address 0.0.0.0. The local CE router has the remote CE router's IP address configured on it. The following example shows a sample configuration on the PPP CE router:

interface serial2/0
 ip address 168.65.32.13 255.255.255.0
 encapsulation ppp
peer default ip address 168.65.32.14  *

If the remote CE router's IP address cannot be configured on the local CE router, then the remote CE router's IP address can be configured on the PE router using the ppp ipcp address proxy ip address command on the xconnect PPP interface of PE router. The following example shows a sample configuration on the PPP PE router:

template type pseudowire mp
 encapsulation mpls
 protocol ldp
 interworking ip
!
int se2/0
 encap ppp
interface pseudowire 100
 source template type pseudowire mp
 neighbor 33.33.33.33 1
!
l2vpn xconnect context con1 
 ppp ipcp address proxy 168.65.32.14 

Static IP Addresses for L2VPN Interworking for PPP

If the PE router needs to perform address resolution with the local CE router for PPP, configure the remote CE router’s IP address on the PE router. Use the ppp ipcp address proxy command with the remote CE router’s IP address on the PE router’s xconnect PPP interface. The following example shows a sample configuration:

pseudowire-class ip-interworking
 encapsulation mpls
 interworking ip
interface Serial2/0
 encapsulation ppp
 xconnect 10.0.0.2 200 pw-class ip-interworking
 ppp ipcp address proxy 10.65.32.14 

You can also configure the remote CE router’s IP address on the local CE router with the peer default ip address command if the local CE router performs address resolution.

Static IP Addresses for L2VPN Interworking for PPP using the commands associated with the L2VPN Protocol-Based CLIs feature

If the PE router needs to perform address resolution with the local CE router for PPP, configure the remote CE router’s IP address on the PE router. Use the ppp ipcp address proxy command with the remote CE router’s IP address on the PE router’s xconnect PPP interface. The following example shows a sample configuration:

template type pseudowire ip-interworking
 encapsulation mpls
 interworking ip
interface Serial2/0
 encapsulation ppp
interface pseudowire 100
 source template type pseudowire ip-interworking
 neighbor 10.0.0.2 200
!
l2vpn xconnect context con1 
 ppp ipcp address proxy 10.65.32.14 

You can also configure the remote CE router’s IP address on the local CE router with the peer default ip address command if the local CE router performs address resolution.

How to Configure L2VPN Interworking

Configuring L2VPN Interworking

L2VPN interworking allows you to connect disparate ACs. Configuring L2VPN interworking feature requires that you add the interworking command to the list of commands that make up the pseudowire. The steps for configuring the pseudowire for L2VPN interworking are included in this section. You use the interworkingcommand as part of the overall AToM configuration. For specific instructions on configuring AToM, see the Any Transport over MPLS document.

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    pseudowire-class name

    4.    encapsulation {mpls | l2tpv3}

    5.    interworking {ethernet | ip| vlan}

    6.    end


DETAILED STEPS
      Command or Action Purpose
    Step 1 enable


    Example:
    Router> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.
     
    Step 2 configure terminal


    Example:
    Router# configure terminal
     

    Enters global configuration mode.

     
    Step 3 pseudowire-class name


    Example:
    Router(config)# pseudowire-class class1
     

    Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

     
    Step 4 encapsulation {mpls | l2tpv3}


    Example:
    Router(config-pw)# encapsulation mpls 
     

    Specifies the tunneling encapsulation, which is either mpls or l2tpv3.

     
    Step 5 interworking {ethernet | ip| vlan}


    Example:
    Router(config-pw)# interworking ip
     

    Specifies the type of pseudowire and the type of traffic that can flow across it.

     
    Step 6 end


    Example:
    Router(config-pw)# end
     

    Exits pseudowire class configuration mode and returns to privileged EXEC mode.

     

    Verifying the L2VPN Configuration

    You can verify L2VPN configuration using the following steps:

    • You can issue the show arp command between the CE routers to ensure that data is being sent:
    Router# show arp
    Protocol   Address       Age (min)   Hardware Addr    Type    Interface
    Internet   10.1.1.5           134    0005.0032.0854   ARPA    FastEthernet0/0/0
    Internet   10.1.1.7             -    0005.0032.0000   ARPA    FastEthernet0/0/0
    
    • You can issue the ping command between the CE routers to ensure that data is being sent:
    Router# ping 10.1.1.5
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
    
    • You can verify the AToM configuration by using the show mpls l2transport vc detail command.

    Configuring L2VPN Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature

    L2VPN Interworking allows you to connect disparate attachment circuits. Configuring the L2VPN Interworking feature requires that you add the interworking command to the list of commands that make up the pseudowire. The steps for configuring the pseudowire for L2VPN Interworking are included in this section. You use the interworkingcommand as part of the overall AToM or L2TPv3 configuration. For specific instructions on configuring AToM or L2TPv3, see the following documents:

    • Layer 2 Tunnel Protocol Version 3
    • Any Transport over MPLS
    SUMMARY STEPS

      1.    enable

      2.    configure terminal

      3.    hw-module slot slot-number np mode feature

      4.    interface pseudowire number

      5.    encapsulation {mpls | l2tpv3}

      6.    interworking {ethernet | ip} | vlan}

      7.    neighbor peer-address vcid-value


    DETAILED STEPS
        Command or Action Purpose
      Step 1 enable


      Example:
      Router> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 configure terminal


      Example:
      Router# configure terminal
       

      Enters global configuration mode.

       
      Step 3 hw-module slot slot-number np mode feature


      Example:
      Router(config)# hw-module slot 3 np mode feature
       

      (Optional) Enables L2VPN Interworking functionality on the Cisco 12000 series router.

      Note   

      Enter this command only on a Cisco 12000 series Internet router if you use L2TPv3 for L2VPN Interworking on an ISE (Engine 3) or Engine 5 interface. In this case, you must first enable the L2VPN feature bundle on the line card by entering the hw-module slot slot-number np mode feature command.

       
      Step 4 interface pseudowire number


      Example:
      Router(config)# interface pseudowire 1
       

      Establishes an interface pseudowire with a value that you specify and enters pseudowire class configuration mode.

       
      Step 5 encapsulation {mpls | l2tpv3}


      Example:
      Router(config-pw)# encapsulation mpls 
       

      Specifies the tunneling encapsulation, which is either mpls or l2tpv3.

       
      Step 6 interworking {ethernet | ip} | vlan}


      Example:
      Router(config-pw)# interworking ip
       

      Specifies the type of pseudowire and the type of traffic that can flow across it.

      Note   

      On the Cisco 12000 series Internet router, Ethernet (bridged) interworking is not supported for L2TPv3. After you configure the L2TPv3 tunnel encapsulation for the pseudowire using the encapsulation l2tpv3command, you cannot enter the interworking ethernet command.

       
      Step 7 neighbor peer-address vcid-value


      Example:
      Router(config-pw)#  neighbor 10.0.0.1 123
       

      Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

       

      Verifying the L2VPN Configuration using the commands associated with the L2VPN Protocol-Based CLIs feature

      You can verify L2VPN configuration using the following commands:

      • You can issue the show arp command between the CE routers to ensure that data is being sent:
      Device# show arp
      Protocol   Address       Age (min)   Hardware Addr    Type    Interface
      Internet   10.1.1.5           134    0005.0032.0854   ARPA    FastEthernet0/0/0
      Internet   10.1.1.7             -    0005.0032.0000   ARPA    FastEthernet0/0/0
      
      • You can issue the ping command between the CE routers to ensure that data is being sent:
      Device# ping 10.1.1.5
      Type escape sequence to abort.
      Sending 5, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
      !!!!!
      Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
      
      • You can verify the AToM configuration by using the show l2vpn atom vc detail command.

      Configuring Ethernet VLAN-to-ATM AAL5 Interworking

      This section explains the following AToM configurations:

      ATM AAL5-to-Ethernet Port

      You can configure the ATM AAL5-to-Ethernet Port feature on a PE1 router using the following steps:

      SUMMARY STEPS

        1.    enable

        2.    configure terminal

        3.    mpls label protocol ldp

        4.    interface type number

        5.    ip address ip-address mask

        6.    pseudowire-class [pw-class-name]

        7.    encapsulation mpls

        8.    interworking {ethernet | ip| vlan}

        9.    interface atm slot / subslot / port . subinterface number

        10.    pvc [name] vpi / vci 12transport

        11.    encapsulation aal5snap

        12.    xconnect ip-address vc-id pw-class pw-class-name

        13.    end


      DETAILED STEPS
          Command or Action Purpose
        Step 1 enable


        Example:
        Router> enable
         

        Enables privileged EXEC mode.

        • Enter your password, if prompted.
         
        Step 2 configure terminal


        Example:
        Router# configure terminal
         

        Enters global configuration mode.

         
        Step 3 mpls label protocol ldp


        Example:
        Router(config)# mpls label protocol ldp
         

        Establishes the label distribution protocol for the platform.

         
        Step 4 interface type number


        Example:
        Router(config)# interface loopback 100
         

        Configure an interface type and enters interface configuration mode.

         
        Step 5 ip address ip-address mask


        Example:
        Router(config-if)# ip address 10.0.0.100 255.255.255.255
         

        Sets the primary or secondary IP address for an interface.

         
        Step 6 pseudowire-class [pw-class-name]


        Example:
        Router(config-if)# pseudowire-class atm-eth
         

        Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

         
        Step 7 encapsulation mpls


        Example:
        Router(config-pw)# encapsulation mpls 
         

        Specifies the tunneling encapsulation.

         
        Step 8 interworking {ethernet | ip| vlan}


        Example:
        Router(config-pw)# interworking ip
         

        Specifies the type of pseudowire and the type of traffic that can flow across it.

         
        Step 9 interface atm slot / subslot / port . subinterface number


        Example:
        Router(config-pw)# interface atm 2/0/0.1
         

        Configures an ATM interface and enters interface configuration mode.

         
        Step 10 pvc [name] vpi / vci 12transport


        Example:
        Router(config-subif)# pvc 0/200 l2transport
         

        Assigns a name to an ATM permanent virtual circuit (PVC) and enters ATM virtual circuit configuration mode.

         
        Step 11 encapsulation aal5snap


        Example:
        Router(config-if-atm-member)# encapsulation aal5snap
         

        Configures the ATM AAL and encapsulation type for an ATM VC.

         
        Step 12 xconnect ip-address vc-id pw-class pw-class-name


        Example:
        Router(config-if-atm-member)# xconnect 10.0.0.200 140 pw-class atm-eth
         

        Binds an AC to a pseudowire and configures an AToM static pseudowire.

         
        Step 13 end


        Example:
        Router(config-if-xconn)# end
         

        Exits xconnect configuration mode and returns to privileged EXEC mode.

         

        ATM AAL5-to-Ethernet Port using the commands associated with the L2VPN Protocol-Based CLIs feature

        You can configure the ATM AAL5-to-Ethernet Port feature on a PE1 router using the following steps:

        SUMMARY STEPS

          1.    enable

          2.    configure terminal

          3.    mpls label protocol ldp

          4.    interface type number

          5.    ip address ip-address mask

          6.    template type pseudowire [pw-class-name]

          7.    encapsulation mpls

          8.    interworking {ethernet | ip| vlan}

          9.    interface atm slot / subslot / port . subinterface number

          10.    pvc [name] vpi / vci 12transport

          11.    encapsulation aal5snap

          12.    end

          13.    interface pseudowire number

          14.    source template type pseudowire template-name

          15.    neighbor peer-address vcid-value

          16.    exit

          17.    exit

          18.    l2vpn xconnect context context-name

          19.    member pseudowire interface-number

          20.    member ip-address vc-id encapsulation mpls

          21.    end


        DETAILED STEPS
            Command or Action Purpose
          Step 1 enable


          Example:
          Router> enable
           

          Enables privileged EXEC mode.

          • Enter your password, if prompted.
           
          Step 2 configure terminal


          Example:
          Router# configure terminal
           

          Enters global configuration mode.

           
          Step 3 mpls label protocol ldp


          Example:
          Router(config)# mpls label protocol ldp
           

          Establishes the label distribution protocol for the platform.

           
          Step 4 interface type number


          Example:
          Router(config)# interface loopback 100
           

          Configure an interface type and enters interface configuration mode.

           
          Step 5 ip address ip-address mask


          Example:
          Router(config-if)# ip address 10.0.0.100 255.255.255.255
           

          Sets the primary or secondary IP address for an interface.

           
          Step 6 template type pseudowire [pw-class-name]


          Example:
          Router(config-if)# template type pseudowire atm-eth
           

          Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

           
          Step 7 encapsulation mpls


          Example:
          Router(config-pw)# encapsulation mpls 
           

          Specifies the tunneling encapsulation.

           
          Step 8 interworking {ethernet | ip| vlan}


          Example:
          Router(config-pw)# interworking ip
           

          Specifies the type of pseudowire and the type of traffic that can flow across it.

           
          Step 9 interface atm slot / subslot / port . subinterface number


          Example:
          Router(config-pw)# interface atm 2/0/0.1
           

          Configures an ATM interface and enters interface configuration mode.

           
          Step 10 pvc [name] vpi / vci 12transport


          Example:
          Router(config-subif)# pvc 0/200 l2transport
           

          Assigns a name to an ATM permanent virtual circuit (PVC) and enters ATM virtual circuit configuration mode.

           
          Step 11 encapsulation aal5snap


          Example:
          Router(config-if-atm-member)# encapsulation aal5snap
           

          Configures the ATM AAL and encapsulation type for an ATM VC.

           
          Step 12 end


          Example:
          Router(config-if-atm-member)# end
           

          Exits to privileged EXEC mode.

           
          Step 13 interface pseudowire number


          Example:
          Router(config)# interface pseudowire 100
           

          Specifies the pseudowire interface and enters interface configuration mode.

           
          Step 14 source template type pseudowire template-name


          Example:
          Router(config-if)# source template type pseudowire atm-eth
           

          Configures the source template of type pseudowire named atm-eth.

           
          Step 15 neighbor peer-address vcid-value


          Example:
          Router(config-if)#  neighbor 10.0.0.200 140
           

          Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

           
          Step 16 exit


          Example:
          Router(config-if)# exit
           

          Exits to privileged EXEC mode.

           
          Step 17 exit


          Example:
          Router(config-if)# exit
           

          Exits to privileged EXEC mode.

           
          Step 18 l2vpn xconnect context context-name


          Example:
          Router(config)# l2vpn xconnect context con1
           

          Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

           
          Step 19 member pseudowire interface-number


          Example:
          Router(config-xconnect)# member pseudowire 100
           

          Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

           
          Step 20 member ip-address vc-id encapsulation mpls


          Example:
          Router(config-xconnect)# member 10.0.0.200 140 encapsulation mpls
           

          Creates the VC to transport the Layer 2 packets.

           
          Step 21 end


          Example:
          Router(config-xconnect)# end
           

          Exits xconnect configuration mode and returns to privileged EXEC mode.

           

          ATM AAL5-to-Ethernet Port on a PE2 Router

          You can configure the ATM AAL5-to-Ethernet Port feature on a PE2 router using the following steps:

          SUMMARY STEPS

            1.    enable

            2.    configure terminal

            3.    mpls label protocol ldp

            4.    interface type number

            5.    ip address ip-address mask

            6.    pseudowire-class [pw-class-name]

            7.    encapsulation mpls

            8.    interworking {ethernet | ip| vlan}

            9.    interface type slot / subslot / port

            10.    xconnect ip-address vc-id pw-class pw-class-name

            11.    end


          DETAILED STEPS
              Command or Action Purpose
            Step 1 enable


            Example:
            Router> enable
             

            Enables privileged EXEC mode.

            • Enter your password if prompted.
             
            Step 2 configure terminal


            Example:
            Router# configure terminal
             

            Enters global configuration mode.

             
            Step 3 mpls label protocol ldp


            Example:
            Router(config)# mpls label protocol ldp
             

            Establishes the label distribution protocol for the platform.

             
            Step 4 interface type number


            Example:
            Router(config)# interface loopback 100
             

            Configure an interface type and enters interface configuration mode.

             
            Step 5 ip address ip-address mask


            Example:
            Router(config-if)# ip address 10.0.0.100 255.255.255.255
             

            Sets the primary or secondary IP address for an interface.

             
            Step 6 pseudowire-class [pw-class-name]


            Example:
            Router(config-if)# pseudowire-class atm-eth
             

            Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

             
            Step 7 encapsulation mpls


            Example:
            Router(config-pw)# encapsulation mpls 
             

            Specifies the tunneling encapsulation.

             
            Step 8 interworking {ethernet | ip| vlan}


            Example:
            Router(config-pw)# interworking ip
             

            Specifies the type of pseudowire and the type of traffic that can flow across it.

             
            Step 9 interface type slot / subslot / port


            Example:
            Router(config-pw)# interface gigabitethernet 5/1/0
             

            Configure an interface and enters interface configuration mode.

             
            Step 10 xconnect ip-address vc-id pw-class pw-class-name


            Example:
            Router(config-if)# xconnect 10.0.0.100 140 pw-class atm-eth
             

            Binds an AC to a pseudowire and configures an AToM static pseudowire.

             
            Step 11 end


            Example:
            Router(config-if-xconn)# end
             

            Exits xconnect configuration mode and returns to privileged EXEC mode.

             
            What to Do Next


            Note


            When configuring bridged interworking, the PE2 router configuration does not include the interworking ethernet command because it is treated as like-to-like, and also because the AC is already an Ethernet port. However, when configuring routed interworking, the interworking ip command is required.


            ATM AAL5-to-Ethernet Port on a PE2 Router using the commands associated with the L2VPN Protocol-Based CLIs feature

            You can configure the ATM AAL5-to-Ethernet Port feature on a PE2 router using the following steps:

            SUMMARY STEPS

              1.    enable

              2.    configure terminal

              3.    mpls label protocol ldp

              4.    interface type number

              5.    ip address ip-address mask

              6.    template type pseudowire [pseudowire-name]

              7.    encapsulation mpls

              8.    interworking {ethernet | ip| vlan}

              9.    interface type slot / subslot / port

              10.    end

              11.    interface pseudowire number

              12.    source template type pseudowire template-name

              13.    neighbor peer-address vcid-value

              14.    exit

              15.    l2vpn xconnect context context-name

              16.    member pseudowire interface-number

              17.    member ip-address vc-id encapsulation mpls

              18.    end


            DETAILED STEPS
                Command or Action Purpose
              Step 1 enable


              Example:
              Router> enable
               

              Enables privileged EXEC mode.

              • Enter your password if prompted.
               
              Step 2 configure terminal


              Example:
              Router# configure terminal
               

              Enters global configuration mode.

               
              Step 3 mpls label protocol ldp


              Example:
              Router(config)# mpls label protocol ldp
               

              Establishes the label distribution protocol for the platform.

               
              Step 4 interface type number


              Example:
              Router(config)# interface loopback 100
               

              Configure an interface type and enters interface configuration mode.

               
              Step 5 ip address ip-address mask


              Example:
              Router(config-if)# ip address 10.0.0.100 255.255.255.255
               

              Sets the primary or secondary IP address for an interface.

               
              Step 6 template type pseudowire [pseudowire-name]


              Example:
              Router(config)# template type pseudowire atm-eth
               

              Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

               
              Step 7 encapsulation mpls


              Example:
              Router(config-pw)# encapsulation mpls 
               

              Specifies the tunneling encapsulation.

               
              Step 8 interworking {ethernet | ip| vlan}


              Example:
              Router(config-pw)# interworking ip
               

              Specifies the type of pseudowire and the type of traffic that can flow across it.

               
              Step 9 interface type slot / subslot / port


              Example:
              Router(config-pw)# interface gigabitethernet 5/1/0
               

              Configure an interface and enters interface configuration mode.

               
              Step 10 end


              Example:
              Router(config-pw)# end
               

              Exits to privileged EXEC mode.

               
              Step 11 interface pseudowire number


              Example:
              Router(config)# interface pseudowire 100
               

              Specifies the pseudowire interface and enters interface configuration mode.

               
              Step 12 source template type pseudowire template-name


              Example:
              Router(config-if)# source template type pseudowire atm-eth
               

              Configures the source template of type pseudowire named atm-eth

               
              Step 13 neighbor peer-address vcid-value


              Example:
              Router(config-if)#  neighbor 10.0.0.100 140
               

              Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

               
              Step 14 exit


              Example:
              Router(config-if)# exit
               

              Exits to privileged EXEC mode.

               
              Step 15 l2vpn xconnect context context-name


              Example:
              Router(config)# l2vpn xconnect context con1
               

              Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

               
              Step 16 member pseudowire interface-number


              Example:
              Router(config-xconnect)# member pseudowire 100
               

              Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

               
              Step 17 member ip-address vc-id encapsulation mpls


              Example:
              Router(config-xconnect)# member 10.0.0.100 140 encapsulation mpls
               

              Creates the VC to transport the Layer 2 packets.

               
              Step 18 end


              Example:
              Router(config-xconnect)# end
               

              Exits xconnect configuration mode and returns to privileged EXEC mode.

               
              What to Do Next


              Note


              When configuring bridged interworking, the PE2 router configuration does not include the interworking ethernet command because it is treated as like-to-like, and also because the AC is already an Ethernet port. However, when configuring routed interworking, the interworking ip command is required.


              ATM AAL5-to-Ethernet VLAN 802.1Q on a PE1 Router

              You can configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature on a PE1 router using the following steps:

              SUMMARY STEPS

                1.    enable

                2.    configure terminal

                3.    mpls label protocol ldp

                4.    interface type number

                5.    ip address ip-address mask

                6.    pseudowire-class [pw-class-name]

                7.    encapsulation mpls

                8.    interworking {ethernet | ip| vlan}

                9.    interface atm slot / subslot / port . subinterface number

                10.    pvc [name] vpi / vci 12transport

                11.    encapsulation aal5snap

                12.    xconnect ip-address vc-id pw-class pw-class-name

                13.    end


              DETAILED STEPS
                  Command or Action Purpose
                Step 1 enable


                Example:
                Router> enable
                 

                Enables privileged EXEC mode.

                • Enter your password if prompted.
                 
                Step 2 configure terminal


                Example:
                Router# configure terminal
                 

                Enters global configuration mode.

                 
                Step 3 mpls label protocol ldp


                Example:
                Router(config)# mpls label protocol ldp
                 

                Establishes the label distribution protocol for the platform.

                 
                Step 4 interface type number


                Example:
                Router(config)# interface loopback 100
                 

                Configure an interface type and enters interface configuration mode.

                 
                Step 5 ip address ip-address mask


                Example:
                Router(config-if)# ip address 10.0.0.100 255.255.255.255
                 

                Sets the primary or secondary IP address for an interface.

                 
                Step 6 pseudowire-class [pw-class-name]


                Example:
                Router(config-if)# pseudowire-class atm-eth
                 

                Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                 
                Step 7 encapsulation mpls


                Example:
                Router(config-pw)# encapsulation mpls 
                 

                Specifies the tunneling encapsulation.

                 
                Step 8 interworking {ethernet | ip| vlan}


                Example:
                Router(config-pw)# interworking ip
                 

                Specifies the type of pseudowire and the type of traffic that can flow across it.

                 
                Step 9 interface atm slot / subslot / port . subinterface number


                Example:
                Router(config-pw)# interface atm 2/0/0.1
                 

                Configure an ATM interface and enters interface configuration mode.

                 
                Step 10 pvc [name] vpi / vci 12transport


                Example:
                Router(config-subif)# pvc 0/200 l2transport
                 

                Assigns a name to an ATM permanent virtual circuit (PVC) and enters ATM virtual circuit configuration mode.

                 
                Step 11 encapsulation aal5snap


                Example:
                Router(config-if-atm-member)# encapsulation aal5snap
                 

                Configures the ATM AAL and encapsulation type for an ATM VC.

                 
                Step 12 xconnect ip-address vc-id pw-class pw-class-name


                Example:
                Router(config-if-atm-member)# xconnect 10.0.0.200 140 pw-class atm-eth
                 

                Binds an AC to a pseudowire and configures an AToM static pseudowire.

                 
                Step 13 end


                Example:
                Router(config-if-xconn)# end
                 

                Exits xconnect configuration mode and returns to privileged EXEC mode.

                 

                ATM AAL5-to-Ethernet VLAN 802.1Q on a PE1 Router using the commands associated with the L2VPN Protocol-Based CLIs feature

                You can configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature on a PE1 router using the following steps:

                SUMMARY STEPS

                  1.    enable

                  2.    configure terminal

                  3.    mpls label protocol ldp

                  4.    interface type number

                  5.    ip address ip-address mask

                  6.    template type pseudowire [pseudowire-name]

                  7.    encapsulation mpls

                  8.    interworking {ethernet | ip| vlan}

                  9.    interface atm slot / subslot / port . subinterface number

                  10.    pvc [name] vpi / vci 12transport

                  11.    encapsulation aal5snap

                  12.    end

                  13.    interface pseudowire number

                  14.    source template type pseudowire template-name

                  15.    neighbor peer-address vcid-value

                  16.    exit

                  17.    l2vpn xconnect context context-name

                  18.    member pseudowire interface-number

                  19.    member ip-address vc-id encapsulation mpls

                  20.    end


                DETAILED STEPS
                    Command or Action Purpose
                  Step 1 enable


                  Example:
                  Router> enable
                   

                  Enables privileged EXEC mode.

                  • Enter your password if prompted.
                   
                  Step 2 configure terminal


                  Example:
                  Router# configure terminal
                   

                  Enters global configuration mode.

                   
                  Step 3 mpls label protocol ldp


                  Example:
                  Router(config)# mpls label protocol ldp
                   

                  Establishes the label distribution protocol for the platform.

                   
                  Step 4 interface type number


                  Example:
                  Router(config)# interface loopback 100
                   

                  Configure an interface type and enters interface configuration mode.

                   
                  Step 5 ip address ip-address mask


                  Example:
                  Router(config-if)# ip address 10.0.0.100 255.255.255.255
                   

                  Sets the primary or secondary IP address for an interface.

                   
                  Step 6 template type pseudowire [pseudowire-name]


                  Example:
                  Router(config)# template type pseudowire atm-eth
                   

                  Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

                   
                  Step 7 encapsulation mpls


                  Example:
                  Router(config-pw)# encapsulation mpls 
                   

                  Specifies the tunneling encapsulation.

                   
                  Step 8 interworking {ethernet | ip| vlan}


                  Example:
                  Router(config-pw)# interworking ip
                   

                  Specifies the type of pseudowire and the type of traffic that can flow across it.

                   
                  Step 9 interface atm slot / subslot / port . subinterface number


                  Example:
                  Router(config-pw)# interface atm 2/0/0.1
                   

                  Configure an ATM interface and enters interface configuration mode.

                   
                  Step 10 pvc [name] vpi / vci 12transport


                  Example:
                  Router(config-subif)# pvc 0/200 l2transport
                   

                  Assigns a name to an ATM permanent virtual circuit (PVC) and enters ATM virtual circuit configuration mode.

                   
                  Step 11 encapsulation aal5snap


                  Example:
                  Router(config-if-atm-member)# encapsulation aal5snap
                   

                  Configures the ATM AAL and encapsulation type for an ATM VC.

                   
                  Step 12 end


                  Example:
                  Router(config-if-atm-member)# end
                   

                  Exits to privileged EXEC mode.

                   
                  Step 13 interface pseudowire number


                  Example:
                  Router(config)# interface pseudowire 100
                   

                  Specifies the pseudowire interface and enters interface configuration mode.

                   
                  Step 14 source template type pseudowire template-name


                  Example:
                  Router(config-if)# source template type pseudowire atm-eth
                   

                  Configures the source template of type pseudowire named atm-eth

                   
                  Step 15 neighbor peer-address vcid-value


                  Example:
                  Router(config-if)#  neighbor 10.0.0.200 140
                   

                  Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

                   
                  Step 16 exit


                  Example:
                  Router(config-if)# exit
                   

                  Exits to privileged EXEC mode.

                   
                  Step 17 l2vpn xconnect context context-name


                  Example:
                  Router(config)# l2vpn xconnect context con1
                   

                  Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                   
                  Step 18 member pseudowire interface-number


                  Example:
                  Router(config-xconnect)# member pseudowire 100
                   

                  Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                   
                  Step 19 member ip-address vc-id encapsulation mpls


                  Example:
                  Router(config-xconnect)# member 10.0.0.200 140 encapsulation mpls
                   

                  Creates the VC to transport the Layer 2 packets.

                   
                  Step 20 end


                  Example:
                  Router(config-xconnect)# end
                   

                  Exits xconnect configuration mode and returns to privileged EXEC mode.

                   

                  ATM AAL5-to-Ethernet VLAN 802.1Q on a PE2 router

                  You can configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature on a PE2 router using the following steps:

                  SUMMARY STEPS

                    1.    enable

                    2.    configure terminal

                    3.    mpls label protocol ldp

                    4.    interface type number

                    5.    ip address ip-address mask

                    6.    pseudowire-class [pw-class-name]

                    7.    encapsulation mpls

                    8.    interworking {ethernet | ip| vlan}

                    9.    interface type slot / subslot / port . subinterface-number

                    10.    encapsulation dot1q vlan-id

                    11.    xconnect ip-address vc-id pw-class pw-class-name

                    12.    end


                  DETAILED STEPS
                      Command or Action Purpose
                    Step 1 enable


                    Example:
                    Router> enable
                     

                    Enables privileged EXEC mode.

                    • Enter your password if prompted.
                     
                    Step 2 configure terminal


                    Example:
                    Router# configure terminal
                     

                    Enters global configuration mode.

                     
                    Step 3 mpls label protocol ldp


                    Example:
                    Router(config)# mpls label protocol ldp
                     

                    Establishes the label distribution protocol for the platform.

                     
                    Step 4 interface type number


                    Example:
                    Router(config)# interface loopback 100
                     

                    Configure an interface type and enters interface configuration mode.

                     
                    Step 5 ip address ip-address mask


                    Example:
                    Router(config-if)# ip address 10.0.0.100 255.255.255.255
                     

                    Sets the primary or secondary IP address for an interface.

                     
                    Step 6 pseudowire-class [pw-class-name]


                    Example:
                    Router(config-if)# pseudowire-class atm-eth
                     

                    Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                     
                    Step 7 encapsulation mpls


                    Example:
                    Router(config-pw)# encapsulation mpls 
                     

                    Specifies the tunneling encapsulation.

                     
                    Step 8 interworking {ethernet | ip| vlan}


                    Example:
                    Router(config-pw)# interworking ip
                     

                    Specifies the type of pseudowire and the type of traffic that can flow across it.

                     
                    Step 9 interface type slot / subslot / port . subinterface-number


                    Example:
                    Router(config-pw)# interface gigabitethernet 5/1/0.3
                     

                    Configures an interface and enters interface configuration mode.

                     
                    Step 10 encapsulation dot1q vlan-id


                    Example:
                    Router(config-if)# encapsulation dot1q 1525
                     

                    Enables IEEE 802.1Q encapsulation of traffic on a specified sub interface in a VLAN.

                     
                    Step 11 xconnect ip-address vc-id pw-class pw-class-name


                    Example:
                    Router(config-if)# xconnect 10.0.0.100 140 pw-class atm-eth
                     

                    Binds an AC to a pseudowire and configures an AToM static pseudowire.

                     
                    Step 12 end


                    Example:
                    Router(config-if-xconn)# end
                     

                    Exits xconnect configuration mode and returns to privileged EXEC mode.

                     
                    What to Do Next


                    Note


                    In the case of ATM AAl5-to-VLAN, the PE2 router configuration includes the interworkingcommand for both bridged and routed interworking.



                    Note


                    To verify the L2VPN interworking status and check the statistics, refer to the Verifying L2VPN Interworking.


                    ATM AAL5-to-Ethernet VLAN 802.1Q on a PE2 router using the commands associated with the L2VPN Protocol-Based CLIs feature

                    You can configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature on a PE2 router using the following steps:

                    SUMMARY STEPS

                      1.    enable

                      2.    configure terminal

                      3.    mpls label protocol ldp

                      4.    interface type number

                      5.    ip address ip-address mask

                      6.    template type pseudowire [pseudowire-name]

                      7.    encapsulation mpls

                      8.    interworking {ethernet | ip| vlan}

                      9.    interface type slot / subslot / port . subinterface-number

                      10.    encapsulation dot1q vlan-id

                      11.    end

                      12.    interface pseudowire number

                      13.    source template type pseudowire template-name

                      14.    neighbor peer-address vcid-value

                      15.    exit

                      16.    l2vpn xconnect context context-name

                      17.    member pseudowire interface-number

                      18.    member ip-address vc-id encapsulation mpls

                      19.    end


                    DETAILED STEPS
                        Command or Action Purpose
                      Step 1 enable


                      Example:
                      Router> enable
                       

                      Enables privileged EXEC mode.

                      • Enter your password if prompted.
                       
                      Step 2 configure terminal


                      Example:
                      Router# configure terminal
                       

                      Enters global configuration mode.

                       
                      Step 3 mpls label protocol ldp


                      Example:
                      Router(config)# mpls label protocol ldp
                       

                      Establishes the label distribution protocol for the platform.

                       
                      Step 4 interface type number


                      Example:
                      Router(config)# interface loopback 100
                       

                      Configure an interface type and enters interface configuration mode.

                       
                      Step 5 ip address ip-address mask


                      Example:
                      Router(config-if)# ip address 10.0.0.100 255.255.255.255
                       

                      Sets the primary or secondary IP address for an interface.

                       
                      Step 6 template type pseudowire [pseudowire-name]


                      Example:
                      Router(config)# template type pseudowire atm-eth
                       

                      Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

                       
                      Step 7 encapsulation mpls


                      Example:
                      Router(config-pw)# encapsulation mpls 
                       

                      Specifies the tunneling encapsulation.

                       
                      Step 8 interworking {ethernet | ip| vlan}


                      Example:
                      Router(config-pw)# interworking ip
                       

                      Specifies the type of pseudowire and the type of traffic that can flow across it.

                       
                      Step 9 interface type slot / subslot / port . subinterface-number


                      Example:
                      Router(config-pw)# interface gigabitethernet 5/1/0.3
                       

                      Configures an interface and enters interface configuration mode.

                       
                      Step 10 encapsulation dot1q vlan-id


                      Example:
                      Router(config-if)# encapsulation dot1q 1525
                       

                      Enables IEEE 802.1Q encapsulation of traffic on a specified sub interface in a VLAN.

                       
                      Step 11 end


                      Example:
                      Router(config-if)# end
                       

                      Exits to privileged EXEC mode.

                       
                      Step 12 interface pseudowire number


                      Example:
                      Router(config)# interface pseudowire 100
                       

                      Specifies the pseudowire interface and enters interface configuration mode.

                       
                      Step 13 source template type pseudowire template-name


                      Example:
                      Router(config-if)# source template type pseudowire atm-eth
                       

                      Configures the source template of type pseudowire named atm-eth

                       
                      Step 14 neighbor peer-address vcid-value


                      Example:
                      Router(config-if)#  neighbor 10.0.0.100 140
                       

                      Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

                       
                      Step 15 exit


                      Example:
                      Router(config-if)# exit
                       

                      Exits to privileged EXEC mode.

                       
                      Step 16 l2vpn xconnect context context-name


                      Example:
                      Router(config)# l2vpn xconnect context con1
                       

                      Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                       
                      Step 17 member pseudowire interface-number


                      Example:
                      Router(config-xconnect)# member pseudowire 100
                       

                      Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                       
                      Step 18 member ip-address vc-id encapsulation mpls


                      Example:
                      Router(config-xconnect)# member 10.0.0.100 140 encapsulation mpls
                       

                      Creates the VC to transport the Layer 2 packets.

                       
                      Step 19 end


                      Example:
                      Router(config-xconnect)# end
                       

                      Exits xconnect configuration mode and returns to privileged EXEC mode.

                       
                      What to Do Next


                      Note


                      In the case of ATM AAl5-to-VLAN, the PE2 router configuration includes the interworkingcommand for both bridged and routed interworking.



                      Note


                      To verify the L2VPN interworking status and check the statistics, refer to the Verifying L2VPN Interworking.


                      Configuring Ethernet VLAN-to-Frame Relay Interworking

                      This section explains the following AToM configurations and provides examples. The Network Topology for FR-to-Ethernet AToM Bridged Interworking figure above illustrates different AToM configurations.

                      Frame Relay DLCI-to-Ethernet Port on a PE1 Router

                      You can configure the Frame Relay DLCI-to-Ethernet Port feature on a PE1 router using the following steps:

                      SUMMARY STEPS

                        1.    enable

                        2.    configure terminal

                        3.    mpls label protocol ldp

                        4.    interface type number

                        5.    ip address ip-address mask

                        6.    pseudowire-class [pw-class-name]

                        7.    encapsulation mpls

                        8.    interworking ethernet

                        9.    interface type slot / subslot / port

                        10.    encapsulation frame-relay

                        11.    connect connection-name interface dlci {interface dlci | l2transport}

                        12.    xconnect ip-address vc-id pw-class pw-class-name

                        13.    end


                      DETAILED STEPS
                          Command or Action Purpose
                        Step 1 enable


                        Example:
                        Router> enable
                         

                        Enables privileged EXEC mode.

                        • Enter your password if prompted.
                         
                        Step 2 configure terminal


                        Example:
                        Router# configure terminal
                         

                        Enters global configuration mode.

                         
                        Step 3 mpls label protocol ldp


                        Example:
                        Router(config)# mpls label protocol ldp
                         

                        Establishes the label distribution protocol for the platform.

                         
                        Step 4 interface type number


                        Example:
                        Router(config)# interface loopback 100
                         

                        Configures an interface type and enters interface configuration mode.

                         
                        Step 5 ip address ip-address mask


                        Example:
                        Router(config-if)# ip address 10.0.0.100 255.255.255.255
                         

                        Sets the primary or secondary IP address for an interface.

                         
                        Step 6 pseudowire-class [pw-class-name]


                        Example:
                        Router(config-if)# pseudowire-class fr-eth
                         

                        Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                         
                        Step 7 encapsulation mpls


                        Example:
                        Router(config-pw)# encapsulation mpls 
                         

                        Specifies the tunneling encapsulation.

                         
                        Step 8 interworking ethernet


                        Example:
                        Router(config-pw)# interworking ethernet
                         

                        Specifies the type of pseudowire and the type of traffic that can flow across it.

                         
                        Step 9 interface type slot / subslot / port


                        Example:
                        Router(config-pw)# interface serial 2/0/0
                         

                        Configures an interface and enters interface configuration mode.

                         
                        Step 10 encapsulation frame-relay


                        Example:
                        Router(config-if)# encapsulation frame-relay
                         

                        Enables Frame Relay encapsulation.

                         
                        Step 11 connect connection-name interface dlci {interface dlci | l2transport}


                        Example:
                        Router(config-if)# connect fr-vlan-1 POS2/3/1 151 l2transport
                         

                        Defines the connection between Frame Relay PVCs.

                         
                        Step 12 xconnect ip-address vc-id pw-class pw-class-name


                        Example:
                        Router(config-if)# xconnect 10.0.0.200 151 pw-class pw-class-bridge
                         

                        Binds an AC to a pseudowire and configures an AToM static pseudowire.

                         
                        Step 13 end


                        Example:
                        Router(config-if-xconn)# end
                         

                        Exits xconnect configuration mode and returns to privileged EXEC mode.

                         

                        Frame Relay DLCI-to-Ethernet Port on a PE1 Router using the commands associated with the L2VPN Protocol-Based CLIs feature

                        You can configure the Frame Relay DLCI-to-Ethernet Port feature on a PE1 router using the following steps:

                        SUMMARY STEPS

                          1.    enable

                          2.    configure terminal

                          3.    mpls label protocol ldp

                          4.    interface type number

                          5.    ip address ip-address mask

                          6.    template type pseudowire [pseudowire-name]

                          7.    encapsulation mpls

                          8.    interworking ethernet

                          9.    interface type slot / subslot / port

                          10.    encapsulation frame-relay

                          11.    connect connection-name interface dlci {interface dlci | l2transport}

                          12.    end

                          13.    interface pseudowire number

                          14.    source template type pseudowire template-name

                          15.    neighbor peer-address vcid-value

                          16.    exit

                          17.    l2vpn xconnect context context-name

                          18.    member pseudowire interface-number

                          19.    member ip-address vc-id encapsulation mpls

                          20.    end


                        DETAILED STEPS
                            Command or Action Purpose
                          Step 1 enable


                          Example:
                          Router> enable
                           

                          Enables privileged EXEC mode.

                          • Enter your password if prompted.
                           
                          Step 2 configure terminal


                          Example:
                          Router# configure terminal
                           

                          Enters global configuration mode.

                           
                          Step 3 mpls label protocol ldp


                          Example:
                          Router(config)# mpls label protocol ldp
                           

                          Establishes the label distribution protocol for the platform.

                           
                          Step 4 interface type number


                          Example:
                          Router(config)# interface loopback 100
                           

                          Configures an interface type and enters interface configuration mode.

                           
                          Step 5 ip address ip-address mask


                          Example:
                          Router(config-if)# ip address 10.0.0.100 255.255.255.255
                           

                          Sets the primary or secondary IP address for an interface.

                           
                          Step 6 template type pseudowire [pseudowire-name]


                          Example:
                          Router(config)# template type pseudowire fr-eth
                           

                          Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

                           
                          Step 7 encapsulation mpls


                          Example:
                          Router(config-pw)# encapsulation mpls 
                           

                          Specifies the tunneling encapsulation.

                           
                          Step 8 interworking ethernet


                          Example:
                          Router(config-pw)# interworking ethernet
                           

                          Specifies the type of pseudowire and the type of traffic that can flow across it.

                           
                          Step 9 interface type slot / subslot / port


                          Example:
                          Router(config-pw)# interface serial 2/0/0
                           

                          Configures an interface and enters interface configuration mode.

                           
                          Step 10 encapsulation frame-relay


                          Example:
                          Router(config-if)# encapsulation frame-relay
                           

                          Enables Frame Relay encapsulation.

                           
                          Step 11 connect connection-name interface dlci {interface dlci | l2transport}


                          Example:
                          Router(config-if)# connect fr-vlan-1 POS2/3/1 151 l2transport
                           

                          Defines the connection between Frame Relay PVCs.

                           
                          Step 12 end


                          Example:
                          Router(config-if)# end
                           

                          Exits to privileged EXEC mode.

                           
                          Step 13 interface pseudowire number


                          Example:
                          Router(config)# interface pseudowire 100
                           

                          Specifies the pseudowire interface and enters interface configuration mode.

                           
                          Step 14 source template type pseudowire template-name


                          Example:
                          Router(config-if)# source template type pseudowire pwclass-bridge
                           

                          Configures the source template of type pseudowire named pwclass-bridge.

                           
                          Step 15 neighbor peer-address vcid-value


                          Example:
                          Router(config-if)#  neighbor 10.0.0.200 151
                           

                          Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

                           
                          Step 16 exit


                          Example:
                          Router(config-if)# exit
                           

                          Exits to privileged EXEC mode.

                           
                          Step 17 l2vpn xconnect context context-name


                          Example:
                          Router(config)# l2vpn xconnect context con1
                           

                          Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                           
                          Step 18 member pseudowire interface-number


                          Example:
                          Router(config-xconnect)# member pseudowire 100
                           

                          Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                           
                          Step 19 member ip-address vc-id encapsulation mpls


                          Example:
                          Router(config-xconnect)# member 10.0.0.200 151 encapsulation mpls
                           

                          Creates the VC to transport the Layer 2 packets.

                           
                          Step 20 end


                          Example:
                          Router(config-xconnect)# end
                           

                          Exits xconnect configuration mode and returns to privileged EXEC mode.

                           

                          Frame Relay DLCI-to-Ethernet Port on a PE2 router

                          You can configure the Frame Relay DLCI-to-Ethernet Port feature on a PE2 router using the following steps:

                          SUMMARY STEPS

                            1.    enable

                            2.    configure terminal

                            3.    mpls label protocol ldp

                            4.    interface type number

                            5.    ip address ip-address mask

                            6.    pseudowire-class [pw-class-name]

                            7.    encapsulation mpls

                            8.    interworking ethernet

                            9.    interface type slot / subslot / port

                            10.    xconnect ip-address vc-id pw-class pw-class-name

                            11.    end


                          DETAILED STEPS
                              Command or Action Purpose
                            Step 1 enable


                            Example:
                            Router> enable
                             

                            Enables privileged EXEC mode.

                            • Enter your password if prompted.
                             
                            Step 2 configure terminal


                            Example:
                            Router# configure terminal
                             

                            Enters global configuration mode.

                             
                            Step 3 mpls label protocol ldp


                            Example:
                            Router(config)# mpls label protocol ldp
                             

                            Establishes the label distribution protocol for the platform.

                             
                            Step 4 interface type number


                            Example:
                            Router(config)# interface loopback 100
                             

                            Configures an interface type and enters interface configuration mode.

                             
                            Step 5 ip address ip-address mask


                            Example:
                            Router(config-if)# ip address 10.0.0.100 255.255.255.255
                             

                            Sets the primary or secondary IP address for an interface.

                             
                            Step 6 pseudowire-class [pw-class-name]


                            Example:
                            Router(config-if)# pseudowire-class atm-eth
                             

                            Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                             
                            Step 7 encapsulation mpls


                            Example:
                            Router(config-pw)# encapsulation mpls 
                             

                            Specifies the tunneling encapsulation.

                             
                            Step 8 interworking ethernet


                            Example:
                            Router(config-pw)# interworking ethernet
                             

                            Specifies the type of pseudowire and the type of traffic that can flow across it.

                             
                            Step 9 interface type slot / subslot / port


                            Example:
                            Router(config-pw)# interface gigabitethernet 2/0/0
                             

                            Configures an interface and enters interface configuration mode.

                             
                            Step 10 xconnect ip-address vc-id pw-class pw-class-name


                            Example:
                            Router(config-if)# xconnect 10.0.0.200 140 pw-class atm-eth
                             

                            Binds an AC to a pseudowire and configures an AToM static pseudowire.

                             
                            Step 11 end


                            Example:
                            Router(config-if-xconn)# end
                             

                            Exits xconnect configuration mode and returns to privileged EXEC mode.

                             
                            What to Do Next


                            Note


                            When configuring bridged interworking, the PE2 router configuration does not include the interworking ethernetcommand because it is treated as like-to-like, and also because the AC is already an Ethernet port. However, when configuring routed interworking, the PE2 router configuration does include the interworking ip command.


                            Frame Relay DLCI-to-Ethernet Port on a PE2 router using the commands associated with the L2VPN Protocol-Based CLIs feature

                            You can configure the Frame Relay DLCI-to-Ethernet Port feature on a PE2 router using the following steps:

                            SUMMARY STEPS

                              1.    enable

                              2.    configure terminal

                              3.    mpls label protocol ldp

                              4.    interface type number

                              5.    ip address ip-address mask

                              6.    template type pseudowire [pseudowire-name]

                              7.    encapsulation mpls

                              8.    interworking ethernet

                              9.    interface type slot / subslot / port

                              10.    end

                              11.    interface pseudowire number

                              12.    source template type pseudowire template-name

                              13.    neighbor peer-address vcid-value

                              14.    exit

                              15.    l2vpn xconnect context context-name

                              16.    member pseudowire interface-number

                              17.    member ip-address vc-id encapsulation mpls

                              18.    end


                            DETAILED STEPS
                                Command or Action Purpose
                              Step 1 enable


                              Example:
                              Router> enable
                               

                              Enables privileged EXEC mode.

                              • Enter your password if prompted.
                               
                              Step 2 configure terminal


                              Example:
                              Router# configure terminal
                               

                              Enters global configuration mode.

                               
                              Step 3 mpls label protocol ldp


                              Example:
                              Router(config)# mpls label protocol ldp
                               

                              Establishes the label distribution protocol for the platform.

                               
                              Step 4 interface type number


                              Example:
                              Router(config)# interface loopback 100
                               

                              Configures an interface type and enters interface configuration mode.

                               
                              Step 5 ip address ip-address mask


                              Example:
                              Router(config-if)# ip address 10.0.0.100 255.255.255.255
                               

                              Sets the primary or secondary IP address for an interface.

                               
                              Step 6 template type pseudowire [pseudowire-name]


                              Example:
                              Router(config)# template type pseudowire atm-eth
                               

                              Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

                               
                              Step 7 encapsulation mpls


                              Example:
                              Router(config-pw)# encapsulation mpls 
                               

                              Specifies the tunneling encapsulation.

                               
                              Step 8 interworking ethernet


                              Example:
                              Router(config-pw)# interworking ethernet
                               

                              Specifies the type of pseudowire and the type of traffic that can flow across it.

                               
                              Step 9 interface type slot / subslot / port


                              Example:
                              Router(config-pw)# interface gigabitethernet 2/0/0
                               

                              Configures an interface and enters interface configuration mode.

                               
                              Step 10 end


                              Example:
                              Router(config-pw)# end
                               

                              Exits to privileged EXEC mode.

                               
                              Step 11 interface pseudowire number


                              Example:
                              Router(config)# interface pseudowire 100
                               

                              Specifies the pseudowire interface and enters interface configuration mode.

                               
                              Step 12 source template type pseudowire template-name


                              Example:
                              Router(config-if)# source template type pseudowire atm-eth
                               

                              Configures the source template of type pseudowire named atm-eth

                               
                              Step 13 neighbor peer-address vcid-value


                              Example:
                              Router(config-if)#  neighbor 10.0.0.200 140
                               

                              Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

                               
                              Step 14 exit


                              Example:
                              Router(config-if)# exit
                               

                              Exits to privileged EXEC mode.

                               
                              Step 15 l2vpn xconnect context context-name


                              Example:
                              Router(config)# l2vpn xconnect context con1
                               

                              Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                               
                              Step 16 member pseudowire interface-number


                              Example:
                              Router(config-xconnect)# member pseudowire 100
                               

                              Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                               
                              Step 17 member ip-address vc-id encapsulation mpls


                              Example:
                              Router(config-xconnect)# member 10.0.0.200 140 encapsulation mpls
                               

                              Creates the VC to transport the Layer 2 packets.

                               
                              Step 18 end


                              Example:
                              Router(config-xconnect)# end
                               

                              Exits xconnect configuration mode and returns to privileged EXEC mode.

                               
                              What to Do Next


                              Note


                              When configuring bridged interworking, the PE2 router configuration does not include the interworking ethernetcommand because it is treated as like-to-like, and also because the AC is already an Ethernet port. However, when configuring routed interworking, the PE2 router configuration does include the interworking ip command.


                              Frame Relay DLCI-to-Ethernet VLAN 802.1Q on a PE1 Router

                              To configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature on a PE1 router, use the following steps:

                              SUMMARY STEPS

                                1.    enable

                                2.    configure terminal

                                3.    mpls label protocol ldp

                                4.    interface type number

                                5.    ip address ip-address mask

                                6.    pseudowire-class [pw-class-name]

                                7.    encapsulation mpls

                                8.    interworking {ethernet | ip| vlan}

                                9.    frame-relay switching

                                10.    interface type slot / subslot / port

                                11.    encapsulation frame-relay

                                12.    frame-relay intf-type [dce]

                                13.    connect connection-name interface dlci {interface dlci | l2transport}

                                14.    xconnect ip-address vc-id pw-class pw-class-name

                                15.    end


                              DETAILED STEPS
                                  Command or Action Purpose
                                Step 1 enable


                                Example:
                                Router> enable
                                 

                                Enables privileged EXEC mode.

                                • Enter your password if prompted.
                                 
                                Step 2 configure terminal


                                Example:
                                Router# configure terminal
                                 

                                Enters global configuration mode.

                                 
                                Step 3 mpls label protocol ldp


                                Example:
                                Router(config)# mpls label protocol ldp
                                 

                                Establishes the label distribution protocol for the platform.

                                 
                                Step 4 interface type number


                                Example:
                                Router(config)# interface loopback 100
                                 

                                Configures an interface type and enters interface configuration mode.

                                 
                                Step 5 ip address ip-address mask


                                Example:
                                Router(config-if)# ip address 10.0.0.100 255.255.255.255
                                 

                                Sets the primary or secondary IP address for an interface.

                                 
                                Step 6 pseudowire-class [pw-class-name]


                                Example:
                                Router(config-if)# pseudowire-class atm-eth
                                 

                                Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                                 
                                Step 7 encapsulation mpls


                                Example:
                                Router(config-pw)# encapsulation mpls 
                                 

                                Specifies the tunneling encapsulation.

                                 
                                Step 8 interworking {ethernet | ip| vlan}


                                Example:
                                Router(config-pw)# interworking ip
                                 

                                Specifies the type of pseudowire and the type of traffic that can flow across it.

                                 
                                Step 9 frame-relay switching


                                Example:
                                Router(config-pw)# frame-relay switching
                                 

                                Enables PVC switching on a Frame Relay DCE device.

                                 
                                Step 10 interface type slot / subslot / port


                                Example:
                                Router(config-pw)# interface serial 2/0/0
                                 

                                Configures an interface and enters interface configuration mode.

                                 
                                Step 11 encapsulation frame-relay


                                Example:
                                Router(config-if)# encapsulation frame-relay
                                 

                                Enables Frame Relay encapsulation.

                                 
                                Step 12 frame-relay intf-type [dce]


                                Example:
                                Router(config-if)# frame-relay intf-type dce
                                 

                                Configures a Frame Relay switch type.

                                 
                                Step 13 connect connection-name interface dlci {interface dlci | l2transport}


                                Example:
                                Router(config-if)# connect one serial0 16 serial1 100
                                 

                                Defines the connection between Frame Relay PVCs.

                                 
                                Step 14 xconnect ip-address vc-id pw-class pw-class-name


                                Example:
                                Router(config-if)# xconnect 10.0.0.200 140 pw-class atm-eth
                                 

                                Binds an AC to a pseudowire and configures an AToM static pseudowire.

                                 
                                Step 15 end


                                Example:
                                Router(config-if-xconn)# end
                                 

                                Exits xconnect configuration mode and returns to privileged EXEC mode.

                                 

                                Frame Relay DLCI-to-Ethernet VLAN 802.1Q on a PE1 Router using the commands associated with the L2VPN Protocol-Based CLIs feature

                                To configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature on a PE1 router, use the following steps:

                                SUMMARY STEPS

                                  1.    enable

                                  2.    configure terminal

                                  3.    mpls label protocol ldp

                                  4.    interface type number

                                  5.    ip address ip-address mask

                                  6.    template type pseudowire [pseudowire-name]

                                  7.    encapsulation mpls

                                  8.    interworking {ethernet | ip| vlan}

                                  9.    frame-relay switching

                                  10.    interface type slot / subslot / port

                                  11.    encapsulation frame-relay

                                  12.    frame-relay intf-type [dce]

                                  13.    connect connection-name interface dlci {interface dlci | l2transport}

                                  14.    end

                                  15.    interface pseudowire number

                                  16.    source template type pseudowire template-name

                                  17.    neighbor peer-address vcid-value

                                  18.    exit

                                  19.    l2vpn xconnect context context-name

                                  20.    member pseudowire interface-number

                                  21.    member ip-address vc-id encapsulation mpls

                                  22.    end


                                DETAILED STEPS
                                    Command or Action Purpose
                                  Step 1 enable


                                  Example:
                                  Router> enable
                                   

                                  Enables privileged EXEC mode.

                                  • Enter your password if prompted.
                                   
                                  Step 2 configure terminal


                                  Example:
                                  Router# configure terminal
                                   

                                  Enters global configuration mode.

                                   
                                  Step 3 mpls label protocol ldp


                                  Example:
                                  Router(config)# mpls label protocol ldp
                                   

                                  Establishes the label distribution protocol for the platform.

                                   
                                  Step 4 interface type number


                                  Example:
                                  Router(config)# interface loopback 100
                                   

                                  Configures an interface type and enters interface configuration mode.

                                   
                                  Step 5 ip address ip-address mask


                                  Example:
                                  Router(config-if)# ip address 10.0.0.100 255.255.255.255
                                   

                                  Sets the primary or secondary IP address for an interface.

                                   
                                  Step 6 template type pseudowire [pseudowire-name]


                                  Example:
                                  Router(config)# template type pseudowire atm-eth
                                   

                                  Specifies the name of a Layer 2 pseudowire class and enters pseudowire class configuration mode.

                                   
                                  Step 7 encapsulation mpls


                                  Example:
                                  Router(config-pw)# encapsulation mpls 
                                   

                                  Specifies the tunneling encapsulation.

                                   
                                  Step 8 interworking {ethernet | ip| vlan}


                                  Example:
                                  Router(config-pw)# interworking ip
                                   

                                  Specifies the type of pseudowire and the type of traffic that can flow across it.

                                   
                                  Step 9 frame-relay switching


                                  Example:
                                  Router(config-pw)# frame-relay switching
                                   

                                  Enables PVC switching on a Frame Relay DCE device.

                                   
                                  Step 10 interface type slot / subslot / port


                                  Example:
                                  Router(config-pw)# interface serial 2/0/0
                                   

                                  Configures an interface and enters interface configuration mode.

                                   
                                  Step 11 encapsulation frame-relay


                                  Example:
                                  Router(config-if)# encapsulation frame-relay
                                   

                                  Enables Frame Relay encapsulation.

                                   
                                  Step 12 frame-relay intf-type [dce]


                                  Example:
                                  Router(config-if)# frame-relay intf-type dce
                                   

                                  Configures a Frame Relay switch type.

                                   
                                  Step 13 connect connection-name interface dlci {interface dlci | l2transport}


                                  Example:
                                  Router(config-if)# connect one serial0 16 serial1 100
                                   

                                  Defines the connection between Frame Relay PVCs.

                                   
                                  Step 14 end


                                  Example:
                                  Router(config-if)# end
                                   

                                  Exits to privileged EXEC mode.

                                   
                                  Step 15 interface pseudowire number


                                  Example:
                                  Router(config)# interface pseudowire 100
                                   

                                  Specifies the pseudowire interface and enters interface configuration mode.

                                   
                                  Step 16 source template type pseudowire template-name


                                  Example:
                                  Router(config-if)# source template type pseudowire atm-eth
                                   

                                  Configures the source template of type pseudowire named atm-eth

                                   
                                  Step 17 neighbor peer-address vcid-value


                                  Example:
                                  Router(config-if)#  neighbor 10.0.0.200 140
                                   

                                  Specifies the peer IP address and virtual circuit (VC) ID value of a Layer 2 VPN (L2VPN) pseudowire.

                                   
                                  Step 18 exit


                                  Example:
                                  Router(config-if)# exit
                                   

                                  Exits to privileged EXEC mode.

                                   
                                  Step 19 l2vpn xconnect context context-name


                                  Example:
                                  Router(config)# l2vpn xconnect context con1
                                   

                                  Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                                   
                                  Step 20 member pseudowire interface-number


                                  Example:
                                  Router(config-xconnect)# member pseudowire 100
                                   

                                  Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                                   
                                  Step 21 member ip-address vc-id encapsulation mpls


                                  Example:
                                  Router(config-xconnect)# member 10.0.0.200 140 encapsulation mpls
                                   

                                  Creates the VC to transport the Layer 2 packets.

                                   
                                  Step 22 end


                                  Example:
                                  Router(config-xconnect)# end
                                   

                                  Exits xconnect configuration mode and returns to privileged EXEC mode.

                                   

                                  Frame Relay DLCI-to-Ethernet VLAN 802.1Q on a PE2 Router

                                  To configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature on a PE2 router, use the following steps:

                                  SUMMARY STEPS

                                    1.    enable

                                    2.    configure terminal

                                    3.    mpls label protocol ldp

                                    4.    interface type number

                                    5.    ip address ip-address mask

                                    6.    pseudowire-class [pw-class-name]

                                    7.    encapsulation mpls

                                    8.    interworking {ethernet | ip| vlan}

                                    9.    interface type slot / subslot / port . subinterface-number

                                    10.    encapsulation dot1q vlan-id

                                    11.    xconnect ip-address vc-id pw-class pw-class-name

                                    12.    end


                                  DETAILED STEPS
                                      Command or Action Purpose
                                    Step 1 enable


                                    Example:
                                    Router> enable
                                     

                                    Enables privileged EXEC mode.

                                    • Enter your password if prompted.
                                     
                                    Step 2 configure terminal


                                    Example:
                                    Router# configure terminal
                                     

                                    Enters global configuration mode.

                                     
                                    Step 3 mpls label protocol ldp


                                    Example:
                                    Router(config)# mpls label protocol ldp
                                     

                                    Establishes the label distribution protocol for the platform.

                                     
                                    Step 4 interface type number


                                    Example:
                                    Router(config)# interface loopback 100
                                     

                                    Configures an interface type and enters interface configuration mode.

                                     
                                    Step 5 ip address ip-address mask


                                    Example:
                                    Router(config-if)# ip address 10.0.0.100 255.255.255.255
                                     

                                    Sets the primary or secondary IP address for an interface.

                                     
                                    Step 6 pseudowire-class [pw-class-name]


                                    Example:
                                    Router(config-if)# pseudowire-class atm-eth
                                     

                                    Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                                     
                                    Step 7 encapsulation mpls


                                    Example:
                                    Router(config-pw)# encapsulation mpls 
                                     

                                    Specifies the tunneling encapsulation.

                                     
                                    Step 8 interworking {ethernet | ip| vlan}


                                    Example:
                                    Router(config-pw)# interworking ip
                                     

                                    Specifies the type of pseudowire and the type of traffic that can flow across it.

                                     
                                    Step 9 interface type slot / subslot / port . subinterface-number


                                    Example:
                                    Router(config-pw)# interface gigabitethernet 5/1/0.3
                                     

                                    Configures an interface and enters interface configuration mode.

                                     
                                    Step 10 encapsulation dot1q vlan-id


                                    Example:
                                    Router(config-if)# encapsulation dot1q 1525
                                     

                                    Enables IEEE 802.1Q encapsulation of traffic on a specified subinterface in a VLAN.

                                     
                                    Step 11 xconnect ip-address vc-id pw-class pw-class-name


                                    Example:
                                    Router(config-if)# xconnect 10.0.0.100 140 pw-class atm-eth
                                     

                                    Binds an AC to a pseudowire and configures an AToM static pseudowire.

                                     
                                    Step 12 end


                                    Example:
                                    Router(config-if-xconn)# end
                                     

                                    Exits xconnect configuration mode and returns to privileged EXEC mode.

                                     
                                    What to Do Next


                                    Note


                                    In the case of an Frame Relay DLCI-to-VLAN, the PE2 router configuration includes the interworkingcommand for both bridged and routed interworking.



                                    Note


                                    To verify the L2VPN interworking status and check the statistics, refer to the Verifying L2VPN Interworking.


                                    Frame Relay DLCI-to-Ethernet VLAN 802.1Q on a PE2 Router using the commands associated with the L2VPN Protocol-Based CLIs feature

                                    To configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature on a PE2 router, use the following steps:

                                    SUMMARY STEPS

                                      1.    enable

                                      2.    configure terminal

                                      3.    mpls label protocol ldp

                                      4.    interface type number

                                      5.    ip address ip-address mask

                                      6.    pseudowire-class [pw-class-name]

                                      7.    encapsulation mpls

                                      8.    interworking {ethernet | ip| vlan}

                                      9.    interface type slot / subslot / port . subinterface-number

                                      10.    encapsulation dot1q vlan-id

                                      11.    end

                                      12.    interface pseudowire number

                                      13.    source template type pseudowire template-name

                                      14.    exit

                                      15.    l2vpn xconnect context context-name

                                      16.    member pseudowire interface-number

                                      17.    member ip-address vc-id encapsulation mpls

                                      18.    interworking ip

                                      19.    end


                                    DETAILED STEPS
                                        Command or Action Purpose
                                      Step 1 enable


                                      Example:
                                      Router> enable
                                       

                                      Enables privileged EXEC mode.

                                      • Enter your password if prompted.
                                       
                                      Step 2 configure terminal


                                      Example:
                                      Router# configure terminal
                                       

                                      Enters global configuration mode.

                                       
                                      Step 3 mpls label protocol ldp


                                      Example:
                                      Router(config)# mpls label protocol ldp
                                       

                                      Establishes the label distribution protocol for the platform.

                                       
                                      Step 4 interface type number


                                      Example:
                                      Router(config)# interface loopback 100
                                       

                                      Configures an interface type and enters interface configuration mode.

                                       
                                      Step 5 ip address ip-address mask


                                      Example:
                                      Router(config-if)# ip address 10.0.0.100 255.255.255.255
                                       

                                      Sets the primary or secondary IP address for an interface.

                                       
                                      Step 6 pseudowire-class [pw-class-name]


                                      Example:
                                      Router(config-if)# pseudowire-class atm-eth
                                       

                                      Establishes a pseudowire class with a name that you specify and enters pseudowire class configuration mode.

                                       
                                      Step 7 encapsulation mpls


                                      Example:
                                      Router(config-pw)# encapsulation mpls 
                                       

                                      Specifies the tunneling encapsulation.

                                       
                                      Step 8 interworking {ethernet | ip| vlan}


                                      Example:
                                      Router(config-pw)# interworking ip
                                       

                                      Specifies the type of pseudowire and the type of traffic that can flow across it.

                                       
                                      Step 9 interface type slot / subslot / port . subinterface-number


                                      Example:
                                      Router(config-pw)# interface gigabitethernet 5/1/0.3
                                       

                                      Configures an interface and enters interface configuration mode.

                                       
                                      Step 10 encapsulation dot1q vlan-id


                                      Example:
                                      Router(config-if)# encapsulation dot1q 1525
                                       

                                      Enables IEEE 802.1Q encapsulation of traffic on a specified subinterface in a VLAN.

                                       
                                      Step 11 end


                                      Example:
                                      Router(config-if)# end
                                       

                                      Exits to privileged EXEC mode.

                                       
                                      Step 12 interface pseudowire number


                                      Example:
                                      Router(config)# interface pseudowire 100
                                       

                                      Specifies the pseudowire interface and enters interface configuration mode.

                                       
                                      Step 13 source template type pseudowire template-name


                                      Example:
                                      Router(config-if)# source template type pseudowire ether-pw
                                       

                                      Configures the source template of type pseudowire named ether-pw.

                                       
                                      Step 14 exit


                                      Example:
                                      Router(config-if)# exit
                                       

                                      Exits to privileged EXEC mode.

                                       
                                      Step 15 l2vpn xconnect context context-name


                                      Example:
                                      Router(config)# l2vpn xconnect context con1
                                       

                                      Creates a Layer 2 VPN (L2VPN) cross connect context and enters xconnect configuration mode.

                                       
                                      Step 16 member pseudowire interface-number


                                      Example:
                                      Router(config-xconnect)# member pseudowire 100
                                       

                                      Specifies a member pseudowire to form a Layer 2 VPN (L2VPN) cross connect.

                                       
                                      Step 17 member ip-address vc-id encapsulation mpls


                                      Example:
                                      Router(config-xconnect)# member 10.0.0.100 140 encapsulation mpls
                                       

                                      Creates the VC to transport the Layer 2 packets.

                                       
                                      Step 18 interworking ip


                                      Example:
                                      Router(config-xconnect)# interworking ip
                                       

                                      Establishes an L2VPN cross connect context.

                                       
                                      Step 19 end


                                      Example:
                                      Router(config-xconnect)# end
                                       

                                      Exits xconnect configuration mode and returns to privileged EXEC mode.

                                       
                                      What to Do Next


                                      Note


                                      In the case of an Frame Relay DLCI-to-VLAN, the PE2 router configuration includes the interworkingcommand for both bridged and routed interworking.



                                      Note


                                      To verify the L2VPN interworking status and check the statistics, refer to the Verifying L2VPN Interworking.


                                      Verifying L2VPN Interworking

                                      To verify the L2VPN status (in the AToM configuration), use the following commands:

                                      • show connection [all | name | id | elements | port]
                                      • show xconnect [all | interface | peer]
                                      • show mpls l2transport [binding | checkpoint | hw-capability | summary | vc]
                                      • show mpls infrastructure lfd pseudowire vcid

                                      Verifying L2VPN Interworking using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      To verify the L2VPN status (in the AToM configuration), use the following commands:

                                      • show connection [all | name | id | elements | port]
                                      • show l2vpn service[all | interface | peer]
                                      • show l2vpn atom [binding | checkpoint | hw-capability | summary | vc]
                                      • show mpls infrastructure lfd pseudowire vcid

                                      Configuration Examples for L2VPN Interworking

                                      Frame Relay DLCI-to-Ethernet VLAN 802.1Q Using Bridged Internetworking Example

                                      The following example shows how to configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature using bridged interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      pseudowire-class fr-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      frame-relay switching
                                      interface serial 2/0/0:1
                                       encapsulation frame-relay
                                       frame-relay intf-type dce
                                      connect mpls serial 2/0/0:1 567 l2transport
                                       xconnect 10.0.0.200 150 pw-class fr-vlan
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      pseudowire-class fr-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface gigabitethernet 5/1/0.3
                                       encapsulation dot1q 1525
                                       xconnect 10.0.0.100 150 pw-class fr-vlan

                                      Frame Relay DLCI-to-Ethernet VLAN 802.1Q Using Bridged Internetworking Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows how to configure the Frame Relay DLCI-to-Ethernet VLAN 802.1Q feature using bridged interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      template type pseudowire fr-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      frame-relay switching
                                      interface serial 2/0/0:1
                                       encapsulation frame-relay
                                       frame-relay intf-type dce
                                      connect mpls serial 2/0/0:1 567 l2transport
                                       interface pseudowire 100
                                       source template type pseudowire fr-vlan
                                       neighbor 10.0.0.200 150
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.0.0.200 150 encapsulation mpls
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      template type pseudowire fr-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface gigabitethernet 5/1/0.3
                                       encapsulation dot1q 1525
                                       interface pseudowire 100
                                       source template type pseudowire fr-vlan
                                       neighbor 10.0.0.100 150
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100 
                                       member 10.0.0.100 150 encapsulation mpls

                                      ATM AAL5-to-Ethernet VLAN 802.1Q Using Bridged Internetworking Example

                                      The following example shows how to configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature using bridged interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      pseudowire-class atm-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface atm 2/0/0
                                       pvc 0/200 l2transport
                                       encapsulation aal5snap
                                       xconnect 10.0.0.200 140 pw-class atm-vlan
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      pseudowire-class atm-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface gigabitethernet 5/1/0.3
                                       encapsulation dot1q 1525
                                       xconnect 10.0.0.100 140 pw-class atm-vlan

                                      ATM AAL5-to-Ethernet VLAN 802.1Q Using Bridged Internetworking Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows how to configure the ATM AAL5-to-Ethernet VLAN 802.1Q feature using bridged interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      template type pseudowire atm-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface atm 2/0/0
                                       pvc 0/200 l2transport
                                       encapsulation aal5snap
                                      interface pseudowire 100
                                       source template type pseudowire atm-vlan
                                       neighbor 10.0.0.200 140
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.0.0.200 140 encapsulation mpls
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      template type pseudowire atm-vlan
                                       encapsulation mpls
                                       interworking ethernet
                                      interface gigabitethernet 5/1/0.3
                                       encapsulation dot1q 1525
                                       interface pseudowire 100
                                       source template type pseudowire atm-vlan
                                       neighbor 10.0.0.100 140
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.0.0.200 140 encapsulation mpls

                                      ATM AAL5-to-Ethernet Port Using Routed Interworking Example

                                      The following example shows how to configure the ATM AAL5-to-Ethernet Port feature using routed interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      pseudowire-class atm-eth
                                       encapsulation mpls
                                       interworking ip
                                      interface atm 2/0.1
                                       pvc 0/200 l2transport
                                       encapsulation aal5
                                       xconnect 10.0.0.200 140 pw-class atm-eth
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      pseudowire-class atm-eth
                                       encapsulation mpls
                                       interworking ip
                                      interface gigabitethernet 5/1/0
                                       xconnect 10.0.0.100 140 pw-class atm-eth

                                      Frame Relay DLCI-to-Ethernet Port Using Routed Interworking Example

                                      The following example shows how to configure the Frame Relay DLCI-to-Ethernet Port feature using routed interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      pseudowire-class fr-eth
                                       encapsulation mpls
                                       interworking ip
                                      frame-relay switching
                                      interface serial 2/0/0:1
                                       encapsulation frame-relay
                                       frame-relay intf-type dce
                                       frame-relay interface-dlci 567 switched
                                      connect fr-vlan-1 POS2/3/1 151 l2transport
                                       xconnect 10.0.0.200 151 pw-class pw-class-bridge
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      pseudowire-class fr-eth
                                       encapsulation mpls
                                       interworking ip
                                      interface gigabitethernet 5/1/0
                                       xconnect 10.0.0.100 150 pw-class fr-eth

                                      Frame Relay DLCI-to-Ethernet Port Using Routed Interworking Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows how to configure the Frame Relay DLCI-to-Ethernet Port feature using routed interworking:

                                      PE1 router

                                      PE2 router

                                      config t
                                      mpls label protocol ldp
                                      interface Loopback100
                                       ip address 10.0.0.100 255.255.255.255
                                      template type pseudowire fr-eth
                                       encapsulation mpls
                                       interworking ip
                                      frame-relay switching
                                      interface serial 2/0/0:1
                                       encapsulation frame-relay
                                       frame-relay intf-type dce
                                       frame-relay interface-dlci 567 switched
                                      connect fr-vlan-1 POS2/3/1 151 l2transport
                                       interface pseudowire 100
                                       source template type pseudowire fr-eth
                                       neighbor 10.0.0.200 140
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.0.0.200 140 encapsulation mpls
                                      config t
                                      mpls label protocol ldp
                                      interface Loopback200
                                       ip address 10.0.0.200 255.255.255.255
                                      template type pseudowire fr-eth
                                       encapsulation mpls
                                       interworking ip
                                      interface gigabitethernet 5/1/0
                                       interface pseudowire 100
                                       source template type pseudowire fr-eth
                                       neighbor 10.0.0.200 140
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.0.0.200 140 encapsulation mpls

                                      Ethernet-to-VLAN over AToM--Bridged Example

                                      The following example shows how to configure Ethernet-to-VLAN over AToM in a PE router:

                                      PE1 router

                                      PE2 router

                                      ip cef 
                                      !
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0 force
                                      !
                                      pseudowire-class atom
                                       encapsulation mpls
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                      !
                                      interface FastEthernet0/0
                                       no ip address
                                      !
                                      interface FastEthernet1/0
                                       xconnect 10.8.8.8 123 pw-class atom
                                       
                                                   
                                      ip cef 
                                      !
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0 force
                                      !
                                      pseudowire-class atom-eth-iw
                                       encapsulation mpls
                                       interworking ethernet
                                      !
                                      interface Loopback0
                                      ip address 10.8.8.8 255.255.255.255
                                      !
                                      interface FastEthernet1/0.1
                                       encapsulation dot1q 100
                                       xconnect 10.9.9.9 123 pw-class atom-eth-iw
                                       
                                                   

                                      Ethernet to VLAN over AToM (Bridged) Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows the configuration of Ethernet to VLAN over AToM:

                                      PE1

                                      PE2

                                      ip cef 
                                      !
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0 force
                                      !
                                      template type pseudowire atom-eth-iw
                                       encapsulation mpls
                                       interworking ethernet
                                      !
                                      interface Loopback0
                                      ip address 10.8.8.8 255.255.255.255
                                      !
                                      interface FastEthernet1/0.1
                                       encapsulation dot1q 100
                                       interface pseudowire 100
                                       source template type pseudowire atom-eth-iw
                                       neighbor 10.8.8.8 123
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.8.8.8 123 encapsulation mpls
                                       
                                                   
                                      ip cef 
                                      !
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0 force
                                      !
                                      template type pseudowire atom
                                       encapsulation mpls
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                      !
                                      interface FastEthernet0/0
                                       no ip address
                                      !
                                      interface FastEthernet1/0
                                      interface pseudowire 100
                                       source template type pseudowire ether-pw
                                       neighbor 10.9.9.9 123
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.9.9.9 123 encapsulation mpls
                                       
                                                   

                                      VLAN-to-ATM AAL5 over AToM (Bridged) Example

                                      The following example shows the configuration of VLAN-to-ATM AAL5 over AToM:

                                      PE1 router

                                      PE2 router

                                      ip cef
                                      !
                                      mpls ip
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      !
                                      pseudowire-class inter-ether
                                      encapsulation mpls
                                      interworking ethernet
                                      !
                                      interface Loopback0
                                       ip address 10.8.8.8 255.255.255.255
                                      !
                                      interface ATM1/0.1 point-to-point
                                      pvc 0/100 l2transport
                                      encapsulation aal5snap
                                      xconnect 10.9.9.9 123 pw-class inter-ether
                                      !
                                      interface FastEthernet1/0
                                      xconnect 10.9.9.9 1 pw-class inter-ether
                                      !
                                      router ospf 10
                                       log-adjacency-changes
                                       network 10.8.8.8 0.0.0.0 area 0
                                       network 10.1.1.1 0.0.0.0 area 0
                                      ip cef
                                      !
                                      mpls ip
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      !
                                      pseudowire-class inter-ether
                                       encapsulation mpls
                                       interworking ethernet
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                      !
                                      interface FastEthernet0/0
                                       no ip address
                                      !
                                      interface FastEthernet0/0.1
                                      encapsulation dot1Q 10
                                      xconnect 10.8.8.8 123 pw-class inter-ether
                                      !
                                      router ospf 10
                                       log-adjacency-changes
                                       network 10.9.9.9 0.0.0.0 area 0
                                       network 10.1.1.2 0.0.0.0 area 0

                                      VLAN-to-ATM AAL5 over AToM (Bridged) Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows the configuration of VLAN-to-ATM AAL5 over AToM:

                                      PE1 router

                                      PE2 router

                                      ip cef
                                      !
                                      mpls ip
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      !
                                      template type pseudowire inter-ether
                                      encapsulation mpls
                                      interworking ethernet
                                      !
                                      interface Loopback0
                                       ip address 10.8.8.8 255.255.255.255
                                      !
                                      interface ATM1/0.1 point-to-point
                                      pvc 0/100 l2transport
                                      encapsulation aal5snap
                                      interface pseudowire 100
                                       
                                      source template type pseudowire inter-ether
                                       neighbor 10.9.9.9 123
                                      !
                                      l2vpn xconnect context con1
                                      !
                                      interface FastEthernet1/0
                                      interface pseudowire 100
                                       
                                      source template type pseudowire inter-ether
                                       neighbor 10.9.9.9 1
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.9.9.9.9 1 encapsulation mpls
                                      !
                                      router ospf 10
                                       log-adjacency-changes
                                       network 10.8.8.8 0.0.0.0 area 0
                                       network 10.1.1.1 0.0.0.0 area 0
                                      ip cef
                                      !
                                      mpls ip
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      !
                                      template type pseudowire inter-ether
                                       encapsulation mpls
                                       interworking ethernet
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                      !
                                      interface FastEthernet0/0
                                       no ip address
                                      !
                                      interface FastEthernet0/0.1
                                      encapsulation dot1Q 10
                                      interface pseudowire 100
                                       
                                      source template type pseudowire inter-ether
                                       neighbor 10.8.8.8 123
                                      !
                                      l2vpn xconnect context con1 
                                       member pseudowire 100
                                       member 10.8.8.8 123 encapsulation mpls
                                      !
                                      router ospf 10
                                       log-adjacency-changes
                                       network 10.9.9.9 0.0.0.0 area 0
                                       network 10.1.1.2 0.0.0.0 area 0

                                      Ethernet VLAN-to-PPP over AToM (Routed) Example

                                      The following example shows the configuration of Ethernet VLAN-to-PPP over AToM

                                      PE1 router

                                      PE2 router

                                      configure terminal
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      mpls ip
                                      !
                                      pseudowire-class ppp-ether
                                       encapsulation mpls
                                       interworking ip
                                      !
                                      interface Loopback0
                                       ip address 10.8.8.8 255.255.255.255
                                       no shutdown
                                      !
                                      interface POS2/0/1
                                       no ip address
                                       encapsulation ppp
                                       no peer default ip address
                                       ppp ipcp address proxy 10.10.10.1
                                       xconnect 10.9.9.9 300 pw-class ppp-ether  
                                       no shutdown
                                       
                                                    
                                       
                                                   
                                      configure terminal
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      mpls ip
                                      !
                                      pseudowire-class ppp-ether
                                       encapsulation mpls
                                       interworking ip
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                       no shutdown
                                      !
                                      interface GigabitEthernet6/2
                                       xconnect 10.8.8.8 300 pw-class ppp-ether  
                                       no shutdown
                                       
                                                   

                                      Ethernet VLAN to PPP over AToM (Routed) Example using the commands associated with the L2VPN Protocol-Based CLIs feature

                                      The following example shows the configuration of Ethernet VLAN to PPP over AToM:

                                      PE1

                                      PE2

                                      configure terminal
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      mpls ip
                                      !
                                      template type pseudowire ppp-ether
                                       encapsulation mpls
                                       interworking ip
                                      !
                                      interface Loopback0
                                       ip address 10.8.8.8 255.255.255.255
                                       no shutdown
                                      !
                                      interface POS2/0/1
                                       no ip address
                                       encapsulation ppp
                                       no peer default ip address
                                       ppp ipcp address proxy 10.10.10.1
                                      interface pseudowire 100
                                       
                                      source template type pseudowire ppp-ether
                                      neighbor 10.9.9.9 300
                                      !
                                      l2vpn xconnect context con1
                                       member pseudowire 100
                                       member 10.9.9.9 300 encapsulation mpls
                                       no shutdown
                                       
                                                    
                                       
                                                   
                                      configure terminal
                                      mpls label protocol ldp
                                      mpls ldp router-id Loopback0
                                      mpls ip
                                      !
                                      template type pseudowire ppp-ether
                                       encapsulation mpls
                                       interworking ip
                                      !
                                      interface Loopback0
                                       ip address 10.9.9.9 255.255.255.255
                                       no shutdown
                                      !
                                      interface vlan300
                                       mtu 4470
                                       no ip address
                                      interface pseudowire 100
                                       
                                      source template type pseudowire ppp-ether
                                      neighbor 10.8.8.8 300
                                      !
                                      l2vpn xconnect context con1 
                                       member pseudowire 100
                                       member 10.8.8.8 300 encapsulation mpls
                                       no shutdown 
                                      !
                                      interface GigabitEthernet6/2
                                       switchport
                                       switchport trunk encapsulation dot1q
                                       switchport trunk allowed vlan 300
                                       switchport mode trunk
                                       no shutdown

                                      ATM VC-to-VC Local Switching (Different Port) Example

                                      The following example shows the configuration of ATM VC-to-VC local switching:

                                      CE1 router

                                      CE2 router

                                      PE router

                                      interface ATM1/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm ilmi-keepalive
                                       no atm enable-ilmi-trap
                                       
                                                    
                                      interface ATM1/0
                                       ip address 10.1.1.1 255.255.255.0
                                       no atm enable-ilmi-trap
                                       pvc 0/100 
                                        encapsulation aal5snap
                                      interface ATM3/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm ilmi-keepalive
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM3/0.1 multipoint
                                       ip address 10.1.1.2 255.255.255.0
                                       no atm enable-ilmi-trap
                                       pvc 0/50 
                                        protocol ip 10.1.1.1
                                        encapsulation aal5snap
                                      interface ATM0/1/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM0/1/0.50 point-to-point
                                       no atm enable-ilmi-trap
                                       pvc 0/50 l2transport
                                        encapsulation aal5
                                       !
                                      !
                                      interface ATM0/1/1
                                       no ip address
                                       atm clock INTERNAL
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM0/1/1.100 point-to-point
                                       no atm enable-ilmi-trap
                                       pvc 0/100 l2transport
                                        encapsulation aal5
                                       
                                                    
                                      connect con_atm ATM0/1/1 0/100 ATM0/1/0 0/50

                                      ATM VP-to-VP Local Switching (Different Port) Example

                                      The following example shows the configuration of ATM VP-to-VP local switching:

                                      CE1 router

                                      CE2 router

                                      PE router

                                      interface ATM1/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM1/0.1 point-to-point
                                       ip address 10.1.1.1 255.255.255.0
                                       no atm enable-ilmi-trap
                                       pvc 100/100 
                                        encapsulation aal5snap
                                      interface ATM3/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm ilmi-keepalive
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM3/0.1 point-to-point
                                       ip address 10.1.1.2 255.255.255.0
                                       no atm enable-ilmi-trap
                                       pvc 100/100 
                                        encapsulation aal5snap
                                      interface ATM0/1/0
                                       no ip address
                                       atm clock INTERNAL
                                       no atm ilmi-keepalive
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM0/1/0.50 multipoint
                                       atm pvp 100 l2transport
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM0/1/1
                                       no ip address
                                       atm clock INTERNAL
                                       no atm ilmi-keepalive
                                       no atm enable-ilmi-trap
                                      !
                                      interface ATM0/1/1.100 multipoint
                                       atm pvp 100 l2transport
                                       no atm enable-ilmi-trap
                                       
                                                    
                                      connect atm_con ATM0/1/1 100 ATM0/1/0 100

                                      Additional References for VPLS over GRE

                                      Related Documents

                                      Related Topic

                                      Document Title

                                      Cisco IOS commands

                                      Cisco IOS Master Command List, All Releases

                                      MPLS commands

                                      Multiprotocol Label Switching Command Reference

                                      Standards and RFCs

                                      Standard/RFC

                                      Title

                                      RFC 4762

                                      Virtual Private LAN Service (VPLS) Using Label Distribution Protocol (LDP) Signaling

                                      Technical Assistance

                                      Description

                                      Link

                                      The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

                                      http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

                                      Feature Information for L2VPN Interworking

                                      The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

                                      Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

                                      Table 3 Feature Information for L2VPN Interworking

                                      Feature Name

                                      Releases

                                      Feature Information

                                      L2VPN Interworking

                                      Cisco IOS XE Release 2.4

                                      Cisco IOS XE Release 3.3S

                                      This feature allows disparate ACs to be connected. An interworking function facilitates the translation between the different Layer 2 encapsulations.

                                      The following commands were introduced or modified: debug frame-relay pseudowire, debug ssm, interworking, mtu, pseudowire-class, show l2tun session, show l2tun tunnel , show mpls l2transport vc, show platform.

                                      L2VPN Interworking - Ethernet to VLAN Interworking

                                      Cisco IOS XE Release 2.4

                                      Cisco IOS XE Release 3.8S

                                      This feature allows interworking by stripping the VLAN tags and sending them as untagged frames on the remote end.

                                      In Cisco IOS XE Release 3.8S, support was added for the Cisco ISR 4400 Series Routers.

                                      L2VPN Interworking: Ethernet VLAN to Frame Relay

                                      Cisco IOS XE Release 3.3S

                                      This feature allows interworking of Ethernet VLANs with Frame Relay DLCIs.

                                      The following command was modified: interworking

                                      L2VPN Interworking - Ethernet VLAN to PPP

                                      Cisco IOS XE Release 3.3S

                                      The L2VPN interworking - Ethernet VLAN-to-PPP feature allows disparate ACs to be connected. An interworking function facilitates the translation between the following Layer 2 encapsulations.

                                      L2VPN Interworking: Frame Relay to ATM (Bridged Mode)

                                      Cisco IOS XE Release 3.6S

                                      Cisco IOS XE Release 3.8S

                                      This feature allows Frame Relay to ATM Interworking using bridged and routed mode encapsulation.

                                      In Cisco IOS XE Release 3.8S, support was added for the Cisco ISR 4400 Series Routers.