Summary Of Port Mirroring Commands; Configuring Spanning Tree (G350 Only); Spanning Tree Protocol - Avaya G250 Administration Manual

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Table of Contents

Summary of port mirroring commands

For more information about these commands, see Avaya G250 and Avaya G350 CLI

Reference, 03-300437.

Table 103: Port mirroring CLI commands

clear port mirror

set port mirror

show port mirror

G350 devices support the enhanced Rapid Spanning Tree Protocol (802.1w). The 802.1w

standard is a faster and more sophisticated version of the 802.1d (STP) standard, and includes

backward compatibility with 802.1d. Spanning tree makes it possible to recover connectivity

after an outage within approximately a minute. RSTP, with its "rapid" algorithm, can usually

restore connectivity to a network where a backbone link has failed in much less time.

Spanning tree is not supported on the G250.

The spanning tree algorithm ensures the existence of a loop-free topology in networks that

contain parallel bridges. A loop occurs when there are alternate routes between hosts. If there is

a loop in an extended network, bridges may forward traffic indefinitely, which can result in

increased traffic and degradation in network performance.

The spanning tree algorithm produces a logical tree topology out of any arrangement of bridges.

The result is a single path between any two end stations on an extended network. In addition,

the spanning tree algorithm provides a high degree of fault tolerance. It allows the network to

automatically reconfigure the spanning tree topology if there is a bridge or data-path failure.

Configuring spanning tree (G350 only)

Delete a port mirroring pair

Define a port mirroring source-destination pair

Display mirroring information for a specified port or for all

Issue 5 June 2008