Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 395)

Brocade 6910 Ethernet Access Switch Configuration Guide 339
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Spanning Tree Commands
• By default all VLANs are assigned to the Internal Spanning Tree (MSTI 0) that connects all
bridges and LANs within the MST region. This switch supports up to 32 instances. You should
try to group VLANs which cover the same general area of your network. However, remember
that you must configure all bridges within the same MSTI Region (
“name” on page 339) with
the same set of instances, and the same instance (on each bridge) with the same set of
VLANs. Also, note that RSTP treats each MSTI region as a single node, connecting all regions to
the Common Spanning Tree.
Example
Console(config-mstp)#mst 1 vlan 2-5
Console(config-mstp)#
name
This command configures the name for the multiple spanning tree region in which this switch is
located. Use the no form to clear the name.
Syntax
name name
name - Name of the spanning tree.
Default Setting
Switch’s MAC address
Command Mode
MST Configuration
Command Usage
The MST region name and revision number (see
“revision” on page 339) are used to designate a
unique MST region. A bridge (i.e., spanning-tree compliant device such as this switch) can only
belong to one MST region. And all bridges in the same region must be configured with the same
MST instances.
Example
Console(config-mstp)#name R&D
Console(config-mstp)#
Related Commands
“revision” on page 339
revision
This command configures the revision number for this multiple spanning tree configuration of this
switch. Use the no form to restore the default.
Syntax
revision number
number - Revision number of the spanning tree. (Range: 0-65535)