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Stp debug commands, Configuration notes, Draft: brocade confidential – Brocade 6910 Ethernet Access Switch Diagnostic Guide (Supporting R2.2.0.0) User Manual

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Brocade 6910 Ethernet Access Switch Diagnostic Guide

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DRAFT: BROCADE CONFIDENTIAL

Spanning Tree Protocol and derivatives

Flooding Behavior : Enabled

Spanning-Tree Status : Enabled

Loopback Detection Status : Enabled

Loopback Detection Release Mode : Auto

Loopback Detection Trap : Disabled

Loopback Detection Action : Block

Root Guard Status : Disabled

BPDU Guard Status : Disabled

BPDU Guard Auto Recovery : Disabled

BPDU Guard Auto Recovery Interval : 300

BPDU Filter Status : Disabled

...

STP debug commands

debug hardware dev-swdrv stg

Syntax: debug hardware dev-swdrv stg

This command shows the configuration of all Spanning Trees, including blocked and forwarding
ports.

Console#debug hardware dev-swdrv stg

*** Dump STG ***

STG -- 0

VID : 1-4, 11-4093

BLK(P) : 2-12,

FWD(P) : 1,

STG -- 1

VID : 8,

BLK(P) : 1-12,

STG -- 2

VID : 7,

BLK(P) : 1-12,

STG -- 3

VID : 9,

BLK(P) : 1-12,

STG -- 4

VID : 6,

BLK(P) : 1-12,

Configuration notes

Changing the STP state of the primary port in a trunk group affects all ports in the trunk group.

With RSTP, rapid convergence will not occur on ports connected to shared media devices, such
as hubs. To take advantage of the rapid convergence provided by RSTP, make sure to explicitly
configure all point-to-point links in a topology.
This command shows how to explicitly configure an interface which is attached to a LAN
segment at the end of a bridged LAN or to an end node.

Console(config)# interface ethernet 1/5

Console(config-if)# spanning-tree edge-port