Administration of the Avaya G350 Media Gateway - Avaya Support

Configuring spanning treeThe following example displays port mirroring information:G350-003(super)# show port mirrorport mirroringMirroring both Rx and Tx packets from port 6/2 to port 6/10 is enabledThe following example disables port mirroring:G350-003(super)# clear port mirrorConfiguring spanning treeThis section provides information about configuring spanning tree on the G350 and contains thefollowing topics:●●●Spanning tree overview — an overview of spanning tree protocolSpanning tree CLI commands — a list and description of CLI commands used to configurespanning tree protocol on the G350Spanning tree configuration examples — examples of spanning tree protocolconfigurationsSpanning tree overviewG350 devices support the enhanced Rapid Spanning Tree protocol (802.1w). The 802.1wstandard is a faster and more sophisticated version of the 802.1d (STP) standard, and includesbackward compatibility with 802.1d. Spanning Tree makes it possible to recover connectivityafter an outage within a minute or so. RSTP, with its “rapid” algorithm, can usually restoreconnectivity to a network where a backbone link has failed in much less time.Spanning tree protocolThe Spanning Tree Algorithm ensures the existence of a loop-free topology in networks thatcontain parallel bridges. A loop occurs when there are alternate routes between hosts. If there isa loop in an extended network, bridges may forward traffic indefinitely, which can result inincreased 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 singlepath between any two end stations on an extended network.●Provides a high degree of fault tolerance. It allows the network to automatically reconfigurethe spanning tree topology if there is a bridge or data-path failure.Issue 3 January 2005 143