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Cisco Systems BC-281 DLSw+ with Ethernet Redundancy Enabled for Switch Support Configuration

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Configuring Data-Link Switching Plus

DLSw+ Configuration Examples

BC-332

Cisco IOS Bridging and IBM Networking Configuration Guide

78-11737-02

dlsw remote-peer 0 tcp 10.1.17.1

interface loopback 0

ip address 10.2.24.3 255.255.255.0

int e1

ip address 150.150.2.2 255.255.255.0

dlsw transparent redundancy-enable 9999.9999.9999 master priority 1

dlsw transparent timers sna 1500

Router C

dlsw local-peer peer-id 10.2.24.4

dlsw remote-peer 0 tcp 10.2.17.1

interface loopback 0

ip address 10.2.24.4 255.255.255.0

int e1

ip address 150.150.2.3 255.255.255.0

dlsw transparent redundancy-enable 9999.9999.9999

Router D

dlsw local-peer peer-id 10.2.17.1 promiscuous

DLSw+ with Ethernet Redundancy Enabled for Switch Support Configuration

Example

Figure 145 is a sample configuration of the DLSw+ Ethernet Redundancy feature in a switched

environment. The ethernet switch sees the device with MAC ad dress 4000.0010.0001 one port at a time

because Router A and Router B have mapped different MAC addresses to it. This configuration is known

as MAC-address mapping. Router A is configured so that MAC address 4000.0001.0000 maps to the

actual device with MAC address 4000.0010.0001. Router B is configured so that MAC address

4000.0201.0001 maps to the actual device with MAC address 4000.0010.0001. Router A and B backup

one another. Router A is configured as the master with a default priority of 100. Master Router A waits

1.5 seconds after it receives the first IWANTIT primitive before assigning the new SN A circuit to one of

its ethernet redundancy peers because of the dlsw transparent timers sna 1500 command.

Figure145 DLSw+ with Ethernet Redundancy in a Switched Environment

W

orkstation X

Ethernet switch

Workstation

Z

4000.0010.0001

W

orkstation Y

Router A

Router B

17956

Contents

Main Configuring Data-Link Switching Plus Technology Overview DLSw Standard DLSw Version 2 Standard IP Multicast UDP Unicast Enhanced Peer-on-Demand Routing Feature DLSw+ Features Local Acknowledgment Page Notes on Using LLC2 Local Acknowledgment DLSw+ Support for Other SNA Features DLSw+ Configuration Task List Defining a DLSw+ Local Peer for the Router Defining a DLSw+ Remote Peer TCP Encapsulation TCP/IP with RIF Passthrough Encapsulation FST Encapsulation Direct Encapsulation DLSw Lite Encapsulation Mapping DLSw+ to a Local Data-Link Control Token Ring Ethernet SDLC QLLC FDDI Configuring Advanced Features Scalability Page Page Page Page Page Page Availability Page Page Modes of Operation Network Management Traffic Bandwidth and Queueing Management Access Control DLSw+ Ring List or Port List Page Page Configuring DLSw+ Timers Verifying DLSw+ Monitoring and Maintaining the DLSw+ Network DLSw+ Configuration Examples DLSw+ Using TCP Encapsulation and LLC2 Local AcknowledgmentBasic Configuration Example BC-313 12 Router A Router B 10.2.25.1 10.2.5.2 Figure131 DLSw+ with Local AcknowledgmentSimple Configuration DLSw+ Using TCP Encapsulation with Local AcknowledgmentPeer Group Configuration Example 1 Router A Router C Figure132 DLSw+ with Peer Groups Specified (Example 1) BC-315 BC-316 DLSw+ Using TCP Encapsulation with Local AcknowledgmentPeer Group Configuration Example 2 Figure133 DLSw+ with Peer Groups Specified (Example 2) SDLC 01 controller Router C Router A Router B Router D Router E BC-317 Router D BC-318 Router E DLSw+ with SDLC Multidrop Support Configuration Examples In the following example, all devices are type PU2.0: BC-319 In the following example, all devices are type PU2.1 (Method 1): In the following example, all devices are type PU2.1 (Method 2): DLSw+ with LLC2-to-SDLC Conversion Between PU 4-to-PU 4 Communication Figure134 LLC2-to-SDLC Conversion for PU 4-to-PU 4 Communication BC-320 DLSw+ Translation Between Ethernet and Token Ring Configuration Example Router A Router B Figure135 DLSw+ Translation Between Ethernet and Token Ring AS/400 128.207.111.1 DLSw+ Translation Between FDDI and Token Ring Configuration Example Figure136 DLSw+ Translation Between FDDI and Token Ring Router A Router B DLSw+ BC-322 DLSw+ Translation Between SDLC and Token Ring Media Example AS/400 Figure137 DLSw+ Translation Between SDLC and Token Ring Media BC-323 BC-324 DLSw+ over Frame Relay Configuration Example Router A Router B n Session Figure138 DLSw+ over Frame Relay DLSw+ over QLLC Configuration Examples BC-326 Example 3 3745 B10.1.14.2 DLSw+ with RIF Passthrough Configuration Example Figure 139 is a sample configuration for DLSw+ using the RIF Passthrough feature. Figure139 Network Configuration with RIF Passthrough A10.1.12.1 25 3745 DLSw+ with Enhanced Load Balancing Configuration Example RTR D Figure 140 shows DLSw+ with the Enhanced Load Balancing feature. Figure140 DLSw+ with Enhanced Load Balancing Router D DLSw+ Peer Cluster Feature Configuration Example Figure 141 shows a DLSw+ network configured with the DLSw+ Peer Clusters feature. BP2 MPA MPB DLSW+ RSVP Bandwidth Reservation Feature Configuration Example BC-330 DLSw+ RSVP Bandwidth Reservation Feature with Border Peers Configuration Figure 143 shows a DLSw+ border peer network configured with DLSw+ RSVP. Figure143 DLSw+ RSVP Bandwidth Reservation Feature in a Border Peer Network DLSWRTR1 IPRTR1 DLSw+ with Ethernet Redundancy Configuration Example DLSw+ with Ethernet Redundancy Enabled for Switch Support Configuration BC-333