H3C SOHO IE4300, Command Reference Manual

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19
instance
Use
instance
to map a list of VLANs to an MSTI.
Use
undo instance
to remap the specified VLAN or all VLANs to the CIST (MSTI 0).
Syntax
instance instance-id vlan vlan-id-list
undo instance instance-id [ vlan vlan-id-list ]
Default
All VLANs are mapped to the CIST.
Views
MST region view
Predefined user roles
network-admin
Parameters
instance-id
: Specifies an MSTI ID in the range of 0 to 4094. A value of 0 represents the CIST.
The value range for the instance-id argument is 1 to 4094 for the undo instance command.
vlan vlan-id-list : Specifies a space-separated list of up to 10 VLAN items. Each item
specifies a VLAN or a range of VLANs in the form of
vlan-id1 [ to vlan-id2 ]
. The value for
vlan-id2
must be equal to or greater than the value for
vlan-id1
. The value range for the
vlan-id
argument is 1 to 4094.
Usage guidelines
CAUTION:
Use caution with global Digest Snooping in the following situations:
•
When you modify the VLAN-to-instance mappings.
•
When you restore the default MST region configuration.
If the local device has different VLAN-to-instance mappings than its neighboring devices, loops or
traffic interruption will occur.
If you do not specify any VLANs in the undo instance command, all VLANs mapped to the
specified MSTI are remapped to the CIST.
You cannot map a VLAN to different MSTIs. If you map a VLAN that has been mapped to an MSTI to
a new MSTI, the old mapping is automatically deleted.
You can configure VLAN-to-instance mapping for up to 65 MSTIs.
After configuring this command, run the active region-configuration command to activate
the VLAN-to-instance mapping.
Examples
# Map VLAN 2 to MSTI 1.
<Sysname> system-view
[Sysname] stp region-configuration
[Sysname-mst-region] instance 1 vlan 2
Related commands
active region-configuration