MST
VLAN
29-11
Related Commands
mst vlan (29-11)
mst priority (29-12)
name (29-13)
revision (29-14)
max-hops (29-14)
mst vlan
This command adds VLANs to a spanning tree instance. Use the no form
to remove the specified VLANs. Using the no form without any VLAN
parameters to remove all VLANs.
Syntax
[no] mst instance_id vlan vlan-range
• instance_id - Instance identifier of the spanning tree. (Range: 0-4094)
• vlan-range - Range of VLANs. (Range: 1-4093)
Default Setting
none
Command Mode
MST Configuration
Command Usage
• Use this command to group VLANs into spanning tree instances.
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.
• 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 58 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 (page 29-13) with the same set of instances, and the same
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