Chapter 2: Bridging Configuration Guide

SSR

A B C

The corresponding bridge tables for address-based and flow-based bridging are shown below. As shown, the bridge table contains more information on the traffic patterns when flow-based bridging enabled compared to address-based bridging.

Address-Based Bridge Table

Flow-Based Bridge Table

 

 

A (source)

A B

 

 

B (source)

B A

 

 

C (destination)

B C

 

 

 

A C

 

 

With the SSR configured in flow-based bridging mode, the network manager has “per flow” control of layer-2 traffic. The network manager can then apply Quality of Service (QoS) policies or security filters based layer-2 traffic flows.

To enable flow-based bridging on a port, enter the following command in Configure Mode.

Configure a port for flow-based bridging.

port flow-bridging <port-list>all-ports

To change a port from flow-based bridging to address-based bridging, enter the following command in Configure mode:

Change a port from flow- based bridging to address- based bridging.

negate <line-number of active config containing command>: port flow-bridging<port-list>all-ports

Configuring Spanning Tree

The SSR supports only one spanning tree process per SSR. By default, spanning tree is disabled on the SSR. To enable spanning tree on the SSR, you perform the following task on the ports where you want spanning tree enabled.

SmartSwitch Router User Reference Manual

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Cabletron Systems 9032578-02 manual Configuring Spanning Tree, Address-Based Bridge Table Flow-Based Bridge Table

9032578-02 specifications

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