Specifying The Configuration On An Mst Region - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual
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Specifying the Configuration on an MST Region
Procedure
Step 1
Step 2
Step 3
This example shows how to configure the revision number of the MSTI region for 5:
switch# configure terminal
switch(config)# spanning-tree mst configuration
switch(config-mst)# revision 5
Specifying the Configuration on an MST Region
For two or more switches to be in the same MST region, they must have the same VLAN-to-instance mapping,
the same configuration revision number, and the same MST name.
A region can have one member or multiple members with the same MST configuration; each member must
be capable of processing IEEE 802.1w RSTP BPDUs. There is no limit to the number of MST regions in a
network, but each region can support only up to 65 MST instances. You can assign a VLAN to only one MST
instance at a time.
Procedure
Step 1
Step 2
Step 3
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
186
Command or Action
switch# configure terminal
switch(config)# spanning-tree mst
configuration
switch(config-mst)# revision version
Command or Action
switch# configure terminal
switch(config)# spanning-tree
mst configuration
switch(config-mst)# instance
instance-id vlan vlan-range
Purpose
Enters configuration mode.
Enters MST configuration submode.
Specifies the revision number for the MST region.
The range is from 0 to 65535, and the default
value is 0.
Purpose
Enters configuration mode.
Enters MST configuration submode.
Maps VLANs to an MST instance as follows:
• For instance-id , the range is from 1 to 4094.
• For vlan vlan-range , the range is from 1 to 4094.
When you map VLANs to an MST instance, the mapping is
incremental, and the VLANs specified in the command are added
to or removed from the VLANs that were previously mapped.
To specify a VLAN range, enter a hyphen; for example, enter
the instance 1 vlan 1-63 command to map VLANs 1 through
63 to MST instance 1.
To specify a VLAN series, enter a comma; for example, enter
the instance 1 vlan 10, 20, 30 command to map VLANs 10,
20, and 30 to MST instance 1.
Configuring MST
OL-16597-01
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