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to 64; In the command ―no instance <instance-id> [vlan <vlan-list>]‖, <instance-id>
sets the instance number. The valid number is from 0 to 64. <vlan-list> sets consecutive
or non-consecutive VLAN numbers. ―-‖ refers to consecutive numbers, and ―;‖ refers to
non-consecutive numbers.
Command mode: MSTP Region Mode
Default: Before creating any Instances, there is only the instance 0, and VLAN 1~4094 all
belong to the instance 0.
Usage Guide: This command sets the mappings between VLANs and instances. Only if
all the mapping relationships and other attributes are same, the switches are considered
in the same MSTP region. Before setting any instances, all the VLANs belong to the
instance 0. MSTP can support maximum 64 MSTIs (except for CISTs). CIST can be
treated as MSTI 0. All the other instances are considered as instance 1 to 64.
Example: Map VLAN1-10 and VLAN 100-110 to Instance 1.
Switch(config)#spanning-tree mst configuration
Switch(Config-Mstp-Region)#instance 1 vlan 1-10;100-110
12.1.4 name
Command: name <name>
no name
Function: In MSTP region mode, set MSTP region name; the ―no name‖ command
restores the default setting.
Parameter: <name> is the MSTP region name. The length of the name should be less
than 32 characters.
Command mode: MSTP Region Mode
Default: Default MSTP region name is the MAC address of this bridge.
Usage Guide: This command is to set MSTP region name. The bridges with same MSTP
region name and same other attributes are considered in the same MSTP region.
Example: Set MSTP region name to mstp-test.
Switch(config)#spanning-tree mst configuration
Switch(Config-Mstp-Region)#description mstp-test
12.1.5 revision-level
Command: revision-level <level>
no revision-level
Function: In MSTP region mode, this command is to set revision level for MSTP
configuration; the command ―no revision-level‖ restores the default setting to 0.
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