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Configuring multiple spanning trees, Figure 128 dis, Global settings for mstp – Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual

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Brocade 6910 Ethernet Access Switch Configuration Guide

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Configuring Multiple Spanning Trees

Interface
To display interface settings for STA:

1. Click Spanning Tree, STA.

2. Select Configure Interface from the Step list.

3. Select Show Information from the Action list.

FIGURE 128

Displaying Interface Settings for STA

Configuring Multiple Spanning Trees

Use the Spanning Tree > MSTP (Configure Global) page to create an MSTP instance, or to add VLAN
groups to an MSTP instance.

CLI References

“Spanning Tree Commands”

on page 329

Command Usage
MSTP generates a unique spanning tree for each instance. This provides multiple pathways across
the network, thereby balancing the traffic load, preventing wide-scale disruption when a bridge
node in a single instance fails, and allowing for faster convergence of a new topology for the failed
instance.

Backup port receives more
useful BPDUs from the same
bridge and is therefore not
selected as the designated
port.

x

R

R

A

D

B