Configuring Token Ring LAN Emulation for Multiprotocol over ATM

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Configuring Token Ring LAN Emulation for Multiprotocol over ATM This chapter describes the required and optional tasks for configuring the 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. To identify the hardware platform or software image information associated with a feature, use the Feature Navigator on Cisco.com to search for information about the feature or refer to the software release notes for a specific release. For more information, see the section Identifying Supported Platforms in the chapter Using Cisco IOS Software. 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. 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 To configure Token Ring LANE for MPOA, perform the tasks described in the following sections: Configuring a Token Ring LEC Configuring the LECS Database Configuring the LES/BUS Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA 2007 Cisco Systems, Inc. All rights reserved.

Token Ring LANE for MPOA Configuration Task List Configuring Token Ring LAN Emulation for Multiprotocol over ATM 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: Step 1 Step 2 Step 3 Step 4 Command Router(config)# interface atm {slot/port.subinterface-number number.subinterface-number} Router(config-if)# lane client tokenring [elan-name] Router(config-if)# lane client mpoa server mps-name Router(config-if)# lane client mpoa client mpc-name Purpose Specifies the ATM interface to be associated with the LEC. Defines a Token Ring LEC on a specified ELAN name. (Optional) Binds a Token Ring LEC to an MPS. (Optional) Binds a Token Ring LEC to an MPC. Configuring the LECS Database To configure the LECS database, use the following commands in beginning global configuration mode: Command Purpose Step 1 Router(config)# lane database database-name Creates a named database for the LECS. Step 2 Step 3 Step 4 Router(lane-config-dat)# name elan-name server-atm-address atm-address Router(lane-config-dat)# name elan-name elan-id id Router(lane-config-dat)# name elan-name local-seg-id id Binds the name of the ELAN to the ATM address of the LES. Defines the ELAN ID in the LECS database to participate in MPOA. Configures the local segment ID number. Configuring the LES/BUS To configure the LES/BUS, use the following commands in beginning global configuration mode: Step 1 Step 2 Command Router(config)# interface atm {slot/port.subinterface-number number.subinterface-number} Router(config-if)# lane server-bus tokenring elan-name [elan-id elan-id] Purpose Specifies the ATM subinterface to be associated with the LES/BUS. Defines a Token Ring LES/BUS on the named ELAN. The ELAN ID is optional. 2

Configuring Token Ring LAN Emulation for Multiprotocol over ATM Token Ring LANE Configuration Examples Token Ring LANE Configuration Examples This section provides the following sample configurations of MPOA in a Token Ring LANE environment: 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 Figure 36 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. Figure 36 Token Ring MPOA MPC to MPC Shortcut in an IP Routed Environment Router-2 MPS-1 TR-ELAN2/ LIS 2 Router-3 MPS-2 Router-1 MPC-1 TR-ELAN 1 IP Subnet 1 Shortcut VCC Shortcut path TR-ELAN 3 IP Subnet 3 Router-4 MPC-2 Token Ring IP Subnet 5 Token Ring IP Subnet 4 Host A Host B 18245 The following commands show a sample configuration for Router-1 in Figure 36: hostname Router-1 Define the MPOA Client (mpc-1) configuration. mpoa client config name mpc-1 Configure an IP address on the Token Ring interface. 3

Token Ring LANE Configuration Examples Configuring Token Ring LAN Emulation for Multiprotocol over ATM 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 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 network 1.0.0.0 network 5.0.0.0 The following commands show a sample configuration for Router-2 in Figure 36: hostname Router-2 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 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 4

Configuring Token Ring LAN Emulation for Multiprotocol over ATM Token Ring LANE Configuration Examples 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 network 1.0.0.0 network 2.0.0.0 The following commands show a sample configuration for Router-3 in Figure 36: hostname Router-3 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 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 network 2.0.0.0 network 3.0.0.0 The following commands show a sample configuration for Router-4 in Figure 36: 5

Token Ring LANE Configuration Examples Configuring Token Ring LAN Emulation for Multiprotocol over ATM hostname Router-4 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 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 network 3.0.0.0 network 4.0.0.0 MPOA Token Ring LANE Configuration in an IP SRB-Routed Domain Example Figure 37 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. 6

Configuring Token Ring LAN Emulation for Multiprotocol over ATM Token Ring LANE Configuration Examples Figure 37 Token Ring MPOA MPC to MPC Shortcut in an IP SRB-Routed Environment Router-1 MPS-1 IP with no RIF TR-ELAN2/ LIS 2 Router-2 MPS-2 Multiring IP Edge device MPC-1 (SRB) TR-ELAN 1 IP subnet 1 Shortcut path Shortcut VCC TR-ELAN 3 IP subnet 3 Router-3 MPC-2 IP with RIF Token Ring IP subnet 1 Token Ring IP subnet 4 18349 IP with no RIF Host A Host B The following commands show a sample configuration for Router-1 in Figure 37: hostname Router-1 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 lane config auto-config-atm-address 7

Token Ring LANE Configuration Examples Configuring Token Ring LAN Emulation for Multiprotocol over ATM 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 network 1.0.0.0 network 2.0.0.0 The following commands show a sample configuration for Router-2 in Figure 37: hostname Router-2 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 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 network 2.0.0.0 8

Configuring Token Ring LAN Emulation for Multiprotocol over ATM Token Ring LANE Configuration Examples network 3.0.0.0 The following commands show a sample configuration for Router-3 in Figure 37: hostname Router-3 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 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 network 3.0.0.0 network 4.0.0.0 CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iphone, IP/TV, iq Expertise, the iq logo, iq Net Readiness Scorecard, iquick Study, LightStream, Linksys, MeetingPlace, MGX, Networkers, Networking Academy, Network Registrar, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0711R) Any Internet Protocol (IP) addresses used in this document are not inted to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental. 2007 Cisco Systems, Inc. All rights reserved. 9

Token Ring LANE Configuration Examples Configuring Token Ring LAN Emulation for Multiprotocol over ATM 10

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