Specifications

Switching add mstp msti vlan 8-73
Software Release 2.7.3
C613-03098-00 REV A
add mstp msti vlan
Syntax ADD MSTP MSTI=instance VLAN={vlan-name|vlan-list|ALL}
where:
■ instance is an instance number from 1 to 4094 for a specific MSTI.
■ vlan-name is a unique name for the VLAN, 1 to 15 characters in length.
Valid characters are uppercase letters (A-Z), lowercase letters (a-z), digits
(0-9) the underscore character ("_"), and the hyphen character (-). The
vlanname cannot be a number or ALL.
■ vlan-list is a VLAN number, a range of VLAN numbers (specified as n-m),
or a comma separated list of VLAN numbers and (or) ranges. VLAN
numbers start at 1 and end at 4094.
Description This command maps one or more VLANs to a specified multiple spanning tree
instance (MSTI). The MST algorithm provides multiple spanning tree
topologies within one MST region, so different VLANs can be forwarded in
different paths.
All of the VLANs are mapped to the common internal spanning tree (CIST) by
default. Once a VLAN is mapped to a specified MSTI it will be removed from
the CIST.
A VLAN can be mapped to only one MSTI or the CIST. One VLAN cannot be
mapped to multiple spanning trees. A VLAN must be removed from one MSTI
before it can be mapped to another. VLANs follow the CIST when operating
between regions.
The msti parameter specifies the instance number of the spanning tree. The
MSTI must already exist before any VLANs can be mapped to it. The command
create mstp msti is used to create an MSTI.
The vlan parameter specifies a VLAN (or VLANs) to be mapped to the
specified MSTI. If all is specified, then all VLANs will be mapped to the MSTI.
If a VLAN is already mapped to an MSTI other than the one specified in the
command, then the command will fail.
Examples To map a VLAN with VID of 1 to MSTI5, use the command:
add mst msti=5 vlan=1
Related Commands delete mstp msti vlan
create stp
show mstp
show mstp msti