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Asynchronous Transfer Mode Configuration Guide, Cisco IOS Release 12.4T
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Configuring ATM
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ATM OAM Ping
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ATM OAM Support for F5 Continuity Check
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ATM Policing by Service Category for SVC SoftPVC
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Configuring ATM SNMP Trap and OAM Enhancements
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ATM Multilink PPP Support on Multiple VCs
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ATM Software Segmentation and Reassembly
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ATM SVC Troubleshooting Enhancements
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DHCP Client on WAN Interfaces
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Lossless Compression and ATM Cell Switching and BITS Clocking
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AAL1 CES on AIM-ATM
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Enhanced Voice and QoS for ADSL and G.SHDSL
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Unspecified Bit Rate Plus and ATM Enhancements
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Multiprotocol over ATM Overview
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MPLS Diff-Serv-aware Traffic Engineering over ATM
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Configuring the Multiprotocol over ATM Client
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Configuring the Multiprotocol over ATM Server
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Configuring Token Ring LAN Emulation MPOA
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LAN Emulation Overview
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Configuring LAN Emulation
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SNMP Trap Support for the Virtual Switch Interface Master MIB
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Configuring Token Ring LAN Emulation
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Feedback
Contents
- Configuring Token Ring LAN Emulation MPOA
- Finding Feature Information
- How Token Ring MPOA Works
- Token Ring LANE for MPOA Configuration Task List
- Configuring a Token Ring LEC
- Configuring the LECS Database
- Configuring the LES BUS
- Token Ring LANE Configuration Examples
- MPOA Token Ring LANE Configuration in an IP-Routed Domain Example
- MPOA Token Ring LANE Configuration in an IP SRB-Routed Domain Example
Configuring Token Ring LAN Emulation MPOA
This chapter describes the required and optional tasks for configuring the Multiprotocol over ATM (MPOA) for Token Ring Networks feature.
For a complete description of the commands in this chapter, refer to the the Cisco IOS Switching Services Command Reference. To locate documentation of other commands that appear in this chapter, use the command reference master index or search online.
The MPOA for Token Ring Networks feature allows Token Ring hosts on an ATM network to communicate over direct paths (called shortcuts) through the ATM network. These shortcuts bypass the intermediate router hops that otherwise would be encountered in the default path.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see 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 document.
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.
How Token Ring MPOA Works
Token Ring Multiprotocol over ATM (MPOA) is an extension to LAN Emulation (LANE). It allows Token Ring LANE clients to forward IP packets between subnets to other Token Ring LANE clients through a shortcut in the ATM network. The Token Ring LANE clients have an MPOA client (MPC) communicating with an MPOA server (MPS) to establish this shortcut.
Token Ring LANE for MPOA Configuration Task List
Configuring a Token Ring LEC
For MPOA operation, a LEC must be associated with an MPS, an MPC, or both. Once a LEC is bound to a particular MPS/MPC, it cannot be bound to another MPS/MPC at the same time.
The LEC must also be associated with a physical interface or subinterface, which may be different from the physical interface associated with the MPS or MPC. For proper operation, all interfaces must belong to the same ATM network.
To configure a Token Ring LEC, use the following commands beginning in global configuration mode:
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
Step 1 |
Router(config)# interface atm {slot/port.subinterface-number
| number.subinterface-number
} |
Specifies the ATM interface to be associated with the LEC. |
Step 2 |
Router(config-if)# lane client tokenring [elan-name
] |
Defines a Token Ring LEC on a specified ELAN name. |
Step 3 |
Router(config-if)# lane client mpoa servermps-name |
(Optional) Binds a Token Ring LEC to an MPS. |
Step 4 |
Router(config-if)# lane client mpoa clientmpc-name |
(Optional) Binds a Token Ring LEC to an MPC. |
Configuring the LECS Database
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
Step 1 |
Router(config)# lane databasedatabase-name |
Creates a named database for the LECS. |
Step 2 |
Router(lane-config-dat)# nameelan-nameserver-atm-addressatm-address |
Binds the name of the ELAN to the ATM address of the LES. |
Step 3 |
Router(lane-config-dat)# nameelan-nameelan-idid |
Defines the ELAN ID in the LECS database to participate in MPOA. |
Step 4 |
Router(lane-config-dat)# nameelan-name local-seg-idid |
Configures the local segment ID number. |
Configuring the LES BUS
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
Step 1 |
Router(config)# interface atm {slot/port.subinterface-number
| number.subinterface-number
} |
Specifies the ATM subinterface to be associated with the LES/BUS. |
Step 2 |
Router(config-if)# lane server-bus tokenringelan-name
[elan-idelan-id
] |
Defines a Token Ring LES/BUS on the named ELAN. The ELAN ID is optional. |
Token Ring LANE Configuration Examples
- MPOA Token Ring LANE Configuration in an IP-Routed Domain Example
- MPOA Token Ring LANE Configuration in an IP SRB-Routed Domain Example
MPOA Token Ring LANE Configuration in an IP-Routed Domain Example
The figure below illustrates MPOA in a Token Ring LANE environment where MPC-to-MPC shortcuts are established between Token Ring LANE edge routers that reside in different IP-routed domains.
The following commands show a sample configuration for Router-1 in the figure:
hostname Router-1 ! ip routing ! ! Define the MPOA Client (mpc-1) configuration. ! mpoa client config name mpc-1 ! ! Configure an IP address on the Token Ring interface. ! interface TokenRing1/0 ip address 5.5.5.2 255.255.255.0 ring-speed 16 ! ! Configure a config-server and bind it to its database (mpoa-db). ! Attach the MPOA client mpc-1 to its ATM interface. ! interface ATM2/0 no ip address atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi lane config auto-config-atm-address lane config database mpoa-db mpoa client name mpc-1 ! ! Configure a LANE server-bus and LANE client on ELAN 1. Bind the ! LANE client to its MPOA Client (mpc-1). ! interface ATM2/0.1 multipoint ip address 1.1.1.1 255.255.255.0 lane server-bus tokenring 1 lane client mpoa client name mpc-1 lane client tokenring 1 ! router eigrp 1 network 1.0.0.0 network 5.0.0.0 ! end
The following commands show a sample configuration for Router-2 in the figure:
hostname Router-2 ! ip routing ! ! Configure the config-server database mpoa-db with configuration ! for ELANs 1 to 3 ! lane database mpoa-db name 1 server-atm-address 47.0091810000000060705BFA01.00000CA05F41.01 name 1 local-seg-id 1000 name 1 elan-id 100 name 2 server-atm-address 47.0091810000000060705BFA01.00000CA05B41.01 name 2 local-seg-id 2000 name 2 elan-id 200 name 3 server-atm-address 47.0091810000000060705BFA01.00000CA05B41.03 name 3 local-seg-id 3000 name 3 elan-id 300 ! ! Define the MPOA Server (mps-1) configuration. mpoa server config name mps-1 ! ! Configure the signalling and ILMI PVCs. Also configure a config-server ! and attach the MPOA server (mps-1) to its ATM interface. ! interface ATM4/0 no ip address atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi lane config auto-config-atm-address lane config database mpoa-db mpoa server name mps-1 ! ! Configure a Token Ring LANE client on ELAN 1 and bind the LANE ! client to its MPOA server (mps-1). ! interface ATM4/0.1 multipoint ip address 1.1.1.2 255.255.255.0 lane client mpoa server name mps-1 lane client tokenring 1 ! ! Configure a Token Ring LANE client on ELAN 2 and bind the LANE ! client to its MPOA server (mps-1) ! interface ATM4/0.2 multipoint ip address 2.2.2.1 255.255.255.0 lane client mpoa server name mps-1 lane client tokenring 2 ! router eigrp 1 network 1.0.0.0 network 2.0.0.0 ! end
The following commands show a sample configuration for Router-3 in the figure:
hostname Router-3 ! ip routing ! ! Defines the MPOA Server (mps-2) configuration. mpoa server config name mps-2 ! ! Configure the signalling and ILMI PVCs and attach the MPOA ! server (mps-2) to its ATM interface. ! interface ATM2/0 no ip address atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi mpoa server name mps-2 ! ! Configure a Token Ring LANE client and LANE server-bus on ELAN 2 ! and bind the LANE client to its MPOA server (mps-2) ! interface ATM2/0.1 multipoint ip address 2.2.2.2 255.255.255.0 lane server-bus tokenring 2 lane client mpoa server name mps-2 lane client tokenring 2 ! ! Configure a Token Ring LANE client on ELAN 3 and bind the LANE ! client to its MPOA server (mps-2) ! interface ATM2/0.3 multipoint ip address 3.3.3.1 255.255.255.0 lane server-bus tokenring 3 lane client mpoa server name mps-2 lane client tokenring 3 ! router eigrp 1 network 2.0.0.0 network 3.0.0.0 ! end
The following commands show a sample configuration for Router-4 in the figure:
hostname Router-4 ! ip routing ! ! Define the MPOA client (mpc-2) configuration. ! mpoa client config name mpc-2 ! ! Configure the Token Ring interface ! interface TokenRing1/0 ip address 4.4.4.1 255.255.255.0 ring-speed 16 ! ! Configure the signalling and ILMI PVCs and attach the MPOA ! client to its ATM interface. ! interface ATM2/0 atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi mpoa client name mpc-2 ! ! Configure a Token Ring LANE client on ELAN 3 and bind the LANE ! client to its MPOA client (mpc-2). ! interface ATM2/0.1 multipoint ip address 3.3.3.2 255.255.255.0 lane client mpoa client name mpc-2 lane client tokenring 3 ! router eigrp 1 network 3.0.0.0 network 4.0.0.0 ! end
MPOA Token Ring LANE Configuration in an IP SRB-Routed Domain Example
The figure below illustrates MPOA in a Token Ring LANE environment where MPC-to-MPC shortcuts are established between a Token Ring LANE edge device and a Token Ring LANE router that reside in an IP SRB domain and IP-routed domains.
The following commands show a sample configuration for Router-1 in the figure:
hostname Router-1 ! ip routing ! ! Configure the config-server database mpoa-db with configuration ! for ELANs 1 to 3 lane database mpoa-db name 1 server-atm-address 47.0091810000000060705BFA01.00000CA05F41.01 name 1 local-seg-id 1000 name 1 elan-id 100 name 2 server-atm-address 47.0091810000000060705BFA01.00000CA05B41.01 name 2 local-seg-id 2000 name 2 elan-id 200 name 3 server-atm-address 47.0091810000000060705BFA01.00000CA05B41.03 name 3 local-seg-id 3000 name 3 elan-id 300 ! ! Define the MPOA Server (mps-1) configuration. mpoa server config name mps-1 ! ! Configure the signalling and ILMI PVCs. Also configure a config-server ! and attach the MPOA server (mps-1) to its ATM interface. interface ATM4/0 no ip address atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi lane config auto-config-atm-address lane config database mpoa-db mpoa server name mps-1 ! ! Configure a Token Ring LANE client on ELAN 1 and bind the LANE ! client to its MPOA server (mps-1). The multiring ip configuration ! is required to terminate the RIF for IP packets on the ELAN. interface ATM4/0.1 multipoint ip address 1.1.1.2 255.255.255.0 lane client mpoa server name mps-1 lane client tokenring 1 multiring ip ! ! Configure a Token Ring LANE client on ELAN 2 and bind the LANE ! client to its MPOA server (mps-1) ! interface ATM4/0.2 multipoint ip address 2.2.2.1 255.255.255.0 lane client mpoa server name mps-1 lane client tokenring 2 ! ! router eigrp 1 network 1.0.0.0 network 2.0.0.0 ! end
The following commands show a sample configuration for Router-2 in the figure:
hostname Router-2 ! ip routing ! ! Defines the MPOA Server (mps-2) configuration. mpoa server config name mps-2 ! ! ! Configure the signalling and ILMI PVCs and attach the MPOA ! server (mps-2) to its ATM interface. interface ATM2/0 no ip address atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi mpoa server name mps-2 ! ! Configure a Token Ring LANE client and LANE server-bus on ELAN 2 ! and bind the LANE client to its MPOA server (mps-2) ! interface ATM2/0.1 multipoint ip address 2.2.2.2 255.255.255.0 lane server-bus tokenring 2 lane client mpoa server name mps-2 lane client tokenring 2 ! ! Configure a Token Ring LANE client on ELAN 3 and bind the LANE ! client to its MPOA server (mps-2) ! interface ATM2/0.3 multipoint ip address 3.3.3.1 255.255.255.0 lane server-bus tokenring 3 lane client mpoa server name mps-2 lane client tokenring 3 ! router eigrp 1 network 2.0.0.0 network 3.0.0.0 ! end
The following commands show a sample configuration for Router-3 in the figure:
hostname Router-3 ! ip routing ! ! Define the MPOA client (mpc-2) configuration. mpoa client config name mpc-2 ! ! ! Configure the Token Ring interface interface TokenRing1/0 ip address 4.4.4.1 255.255.255.0 ring-speed 16 ! ! Configure the signalling and ILMI PVCs and attach the MPOA ! client to its ATM interface. ! interface ATM2/0 atm pvc 1 0 5 qsaal atm pvc 2 0 16 ilmi mpoa client name mpc-2 ! ! Configure a Token Ring LANE client on ELAN 3 and bind the LANE ! client to its MPOA client (mpc-2). ! interface ATM2/0.1 multipoint ip address 3.3.3.2 255.255.255.0 lane client mpoa client name mpc-2 lane client tokenring 3 ! router eigrp 1 network 3.0.0.0 network 4.0.0.0 ! end
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