Configuring VPLS over MPLS-TP on the Cisco ASR 903 Router

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

mpls label range minimum-value maximum-value { static minimum-static-value maximum-static-value }

Router(config)# mpls label range 1001 1003 static 10000 25000

Specifies a static range of MPLS labels

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

mpls tp

Router(config)# mpls tp

Enters MPLS-TP configuration mode, from which you can configure MPLS-TP parameters for the router.

Step 4

router-id node-id

Router(config-mpls-tp)# router-id 10.10.10.10

Specifies the default MPLS-TP router ID, which is used as the default source node ID for all MPLS-TP tunnels configured on the router.

Step 5

global-id num

Router(config-mpls-tp)# global-id 1

(Optional) Specifies the default global ID used for all endpoints and midpoints. This command makes the router ID globally unique in a multiprovider tunnel. Otherwise, the router ID is only locally meaningful. The global ID is an autonomous system number, which is a controlled number space by which providers can identify each other.

The router ID and global ID are also included in fault messages by routers at tunnel midpoints to help isolate the location of faults.

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

pseudowire-class class-name

Router(config)# pseudowire-class mpls-tp-class1

Creates a pseudowire class and enters pseudowire class configuration mode.

Step 4

encapsulation mpls

Router(config-pw-class)# encapsulation mpls

Specifies the encapsulation type.

Step 5

control-word

Router(config-pw-class)# control-word

Enables the use of the control word.

Step 6

protocol { l2tpv2 | l2tpv3 | none } [ l2tp-class-name ]

Router(config-pw-class)# protocol none

Specifies the type of protocol.

Step 7

preferred-path { interface tunnel tunnel-number | peer { ip-address | host-name }} [ disable-fallback ]

Router(config-pw-class)# preferred-path interface tunnel-tp2

Specifies the tunnel to use as the preferred path.

Step 8

end

Router(config-pw-class)# end

Router#

Exits configuration mode.

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

bfd-template single-hop template-name

Router(config)# bfd-template single-hop bfdtemplate1

Creates a BFD template and enters BFD configuration mode.

The bfd-template command allows you to create a BFD template and enters BFD configuration mode. The template can be used to specify a set of BFD interval values. You can then invoke the BFD template when you set up the MPLS–TP tunnel.

Step 4

interval microseconds { both microseconds | min-tx microseconds min-rx microseconds } [ multiplier multiplier-value ]

Router(config-bfd)# interval microseconds both 3300 multiplier 3

Configures the transmit and receive intervals in microseconds between BFD packets, and specifies the number of consecutive BFD control packets that must be missed from a BFD peer before BFD declares that a peer is unavailable.

Step 5

interval {both milliseconds | min-tx milliseconds min-rx milliseconds } [multiplier multiplier-value ]

Router(config-bfd)# interval both 120 multiplier 3

Configures the transmit and receive intervals in milliseconds between BFD packets, and specifies the number of consecutive BFD control packets that must be missed from a BFD peer before BFD declares that a peer is unavailable.

Step 6

end

Router(config-bfd)# end

Router#

Exits configuration mode.

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

interface tunnel-tp number

Router(config)# interface tunnel-tp 2

Enters tunnel interface configuration mode. Tunnel numbers from 0 to 999 are supported.

Step 4

description tunnel-description

Router(config-if)# description headend tunnel

(Optional) Specifies a tunnel description.

Step 5

tp tunnel-name name

Router(config-if)# tp tunnel-name tunnel22

Specifies the name of the MPLS-TP tunnel. The TP tunnel name is displayed in the show mpls tp tunnel command output. This command is useful for consistently identifying the tunnel at all endpoints and midpoints.

Step 6

tp source node-id [ global-id num ]

Router(config-if)# tp source 10.10.11.11 global-id 10

(Optional) Specifies the tunnel source and endpoint. This command is and not typically used, because the global router ID and global ID can be used to identify the tunnel source at the endpoint. All tunnels on the router generally use the same (globally specified) source information.

Step 7

tp destination node-id [[ tunnel-tp num ] global-id num ]

Router(config-if)# tp destination 10.10.10.10

Specifies the destination node of the tunnel.

Step 8

bfd bfd-template

Router(config-if)# bfd mpls-tp-bfd-2

Specifies the BFD template.

Step 9

working-lsp

Router(config-if)# working-lsp

Specifies a working LSP, also known as the primary LSP. This LSP is used to route traffic. This command enters working LSP interface configuration mode (config-if-working).

Step 10

in-label num

Router(config-if-working)# in-label 111

Specifies the in label.

Step 11

out-label num out-link num

Router(config-if-working)# out-label 112 out-link 1

Specifies the out label and out link.

Step 12

exit

Router(config-if-working)# exit

Exits from working LSP interface configuration mode.

Step 13

protect-lsp

Router(config-if)# protect-lsp

Specifies a backup for a working LSP. If the working LSP fails, traffic is switched to the protect LSP until the working LSP is restored, at which time forwarding reverts back to the working LSP. This command enters protect LSP interface configuration mode (config-if-protect).

Step 14

in-label num

Router(config-if-protect)# in-label 100

Specifies the in label.

Step 15

out-label num out-link num

Router(config-if-protect)# out-label 113 out-link 2

Specifies the out label and out link.

Step 16

exit

Router(config-if-protect)# exit

Exits from protect LSP interface configuration mode.

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

interface type/num

Router(config)# interface ethernet 1/0

Specifies the interface and enters interface configuration mode.

Step 4

no ip address

Router(config-if)# no ip address

Specifies that there is no IP address assigned to the interface.

Step 5

negotiation auto

Router(config-if)# negotiation auto

Enables the autonegotiation protocol to configure the speed, duplex, and automatic flow control of the Gigabit Ethernet interface.

Step 6

mpls tp link link-num { ipv4 ip-address | tx-mac mac-address }

Router(config-if)# mpls tp link 1 ipv4 10.0.0.2

Associates an MPLS-TP link number with a physical interface and next-hop node. On point-to-point interfaces or Ethernet interfaces designated as point-to-point using the medium p2p command, the next-hop can be implicit, so the mpls tp link command just associates a link number to the interface.

Multiple tunnels and LSPs can refer to the MPLS-TP link to indicate they are traversing that interface. You can move the MPLS-TP link from one interface to another without reconfiguring all the MPLS-TP tunnels and LSPs that refer to the link.

Link numbers a must be unique on the router or node.

Step 7

ip rsvp bandwidth [ rdm [ bc0 interface-bandwidth ] [[ single-flow-bandwidth [ bc1 bandwidth | sub-pool bandwidth ]]] [ interface-bandwidth [ single-flow-bandwidth [ bc1 bandwidth | sub-pool bandwidth ]] | mam max-reservable-bw [ interface-bandwidth [ single-flow-bandwidth ] [ bc0 interface-bandwidth [ bc1 bandwidth ]]] | percent percent-bandwidth [ single-flow-bandwidth ]]

Router(config-if)# ip rsvp bandwidth 1158 100

Enables Resource Reservation Protocol (RSVP) bandwidth for IP on an interface.

For the Cisco 7600 platform, if you configure non-zero bandwidth for the TP tunnel or at a midpoint LSP, make sure that the interface to which the output link is attached has enough bandwidth available. For example, if three tunnel LSPs run over link 1 and each LSP was assigned 1000 with the tp bandwidth command, the interface associated with link 1 needs bandwidth of 3000 with the ip rsvp bandwidth command.

Step 8

exit

Router(config-if)# exit

Exits interface configuration mode.

Step 9

exit

Router(config)# exit

Exits global configuration mode.

Step 10

show mpls tp link-numbers

Router# show mpls tp link-numbers

Displays the configured links.

Step 1

enable

Router> enable

Enables privileged EXEC mode.

• Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

interface type/num

Router(config)# interface gigabitethernet 1/0

Specifies the interface and enters interface configuration mode.

Step 4

no ip address

Router(config-if)# no ip address

Specifies that there is no IP address assigned to the interface.

Step 5

negotiation auto

Router(config-if)# negotiation auto

Enables the autonegotiation protocol to configure the speed, duplex, and automatic flow control of the Gigabit Ethernet interface.

Step 6

service instance id service-type

Router(config)# service instance 1 ethernet

Configures an Ethernet service instance.

Step 7

encapsulation dot1q vlan-id second-dot1q {any | vlan-id | vlan-id-vlan-id[,vlan-id-vlan-id]}

Router(config-if)# encapsulation dot1q 2

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

Step 8

bridge-domain vlan-id [ access | dot1q [ tag ] | dot1q-tunnel ] [ broadcast ] [ ignore-bpdu-pid ] [ pvst-tlv CE-vlan] [ increment ] [ lan-fcs ] [ split-horizon ]

Router(config-if)# bridge-domain 1000

Places the interface in the same bridge domain as the VFI interface.

Step 9

exit

Router(config-if)# exit

Exits interface configuration mode.

Step 1

Router(config)# l2 vfi vfi17 manual

Enables the Layer 2 VFI manual configuration mode.

Step 2

Router(config-vfi)# vpn id 17

Configures a VPN ID for a VPLS domain. The emulated VCs bound to this Layer 2 VRF use this VPN ID for signaling.

Step 3

Places the VFI in the same bridge domain as the access interface.

Step 4

Router(config-vfi)# neighbor 1.5.1.1 101 encapsulation mpls

Specifies the remote peering router ID and the tunnel encapsulation type or the pseudo wire property to be used to set up the emulated VC.

Note Split horizon is the default configuration to avoid broadcast packet looping and to isolate Layer 2 traffic. Use the no-split-horizon keyword to disable split horizon and to configure multiple VCs per spoke into the same VFI.

Note The optional VC ID value identifies the emulated VC between a pair of peering PE routers.

Step 5

Disconnects all emulated VCs previously established under the Layer 2 VFI and prevents the establishment of new attachment circuits.

Note It does not prevent the establishment of new attachment circuits configured with the Layer 2 VFI using CLI.

Step 1

Router(config)#l2vpn vfi context VPLS_1

Enables the Layer 2 VFI manual configuration mode.

Step 2

Router(config-vfi)# vpn id 17

Configures a VPN ID for a VPLS domain. The emulated VCs bound to this Layer 2 VRF use this VPN ID for signaling.

Step 3

Router(config-vfi)#evc evc1

Associates EVC to VPLS domain.

Step 4

Router(config-vfi)# neighbor 1.5.1.1 101 encapsulation mpls

Specifies the remote peering router ID and the tunnel encapsulation type or the pseudo wire property to be used to set up the emulated VC.

Step 5

Exit from Layer 2 VFI configuration mode.

Step 6

Creates bridge-domain.

Step 7

Router(config-bdomain)#member vfi VPLS_1

Places the VFI in the same bridge domain

Step 8

Step 1

configure

Router# configure terminal

Enters global configuration mode.

Step 2

interface loopback interface-path-id

Router#(config)# interface Loopback 3

Enters interface configuration mode and names the new loopback interface.

Step 3

ipv4 address ip-address

Router(config-if)# ipv4 address 172.18.189.38

Assigns an IP address and subnet mask to the virtual loopback interface using the ipv4 address configuration command.

Step 4

end

Router(config-if)# end

Saves configuration changes.

• When you issue the end command, the system prompts you to commit changes:

– Entering yes saves configuration changes to the running configuration file, exits the configuration session, and returns the router to EXEC mode.

– Entering no exits the configuration session and returns the router to EXEC mode without committing the configuration changes.

– Entering cancel leaves the router in the current configuration session without exiting or committing the configuration changes.

• Use the commit command to save the configuration changes to the running configuration file and remain within the configuration session.

Step 5

show interfaces type interface-path-id

RP/0/0/CPU0:router# show interfaces Loopback 3

(Optional) Displays the configuration of the loopback interface.