Display Stp - 3Com S7906E Command Reference Manual

Parameters
None
Description
Use the check region-configuration command to view all the configuration information of the MST
region, including the region name, VLAN-to-MSTI mapping and revision level settings.
Be sure that your MST region configurations are correct, especially the VLAN-to-MSTI mapping table.
As defined in the MSTP protocol, MSTP-enabled devices are in the same MST region only when they
have the same format selector (protocol format selector defined in 802.1s, which is 0 by default and
unconfigurable), region name, VLAN-to-MSTI mapping table, and MSTP revision level settings. A
device will be in a different region if it is different in any of these four settings.
You can view all the MST region–related configuration information by using this command and
determine the MST region the device is currently in, or check whether the MST region configuration is
correct.
Related commands: instance, region-name, revision-level, vlan-mapping modulo, active
region-configuration.
Examples
# View all the configuration information of the MST region.
<Sysname> system-view
[Sysname] stp region-configuration
[Sysname-mst-region] check region-configuration
Admin Configuration
Format selector :0
Region name
Revision level
Instance
0
15
Table 1-1 check region-configuration command output description
Format selector
Region name
Revision level
Instance Vlans Mapped

display stp

Syntax
display stp [ instance instance-id ] [ interface interface-list | slot slot-number ] [ brief ]
:00b010000001
:0
Vlans Mapped
1 to 9, 11 to 4094
10
Field
Configuration format selector of the MST region
MST region name
Revision level of the MST region
VLAN-to-MSTI mappings in the MST region
1-2
Description