H3C Technologies H3C SecPath F1000-E - Manual (Page 111)

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NOTE:
Whether you need to specify the MSTI or VLAN for the spanning tree configuration varies with the
spanning tree modes.
• In STP-compatible or RSTP mode, do not specify any MSTI or VLAN. Otherwise, the spanning tree
configuration is ineffective.
• In MSTP mode, if you specify an MSTI, the spanning tree configuration is effective for the specified MSTI.
If you specify a VLAN list, the spanning tree configuration is ineffective. If you do not specify any MSTI
or VLAN, the spanning tree configuration is effective for the CIST.
Configuring an MST region
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter MST region view. stp region-configuration N/A
3. Configure the MST region
name.
region-name name
Optional.
The MST region name is the MAC
address by default.
4. Configure the
VLAN-to-instance mapping
table.
• instance instance-id vlan
vlan-list
• vlan-mapping modulo modulo
Optional.
Use either command.
All VLANs in an MST region are
mapped to the CIST (or MSTI 0) by
default.
5. Configure the MSTP revision
level of the MST region.
revision-level level
Optional.
0 by default.
6. Display the MST region
configurations that are not
activated yet.
check region-configuration Optional.
7. Activate MST region
configuration manually.
active region-configuration N/A
8. Display the activated
configuration information of
the MST region.
display stp region-configuration [ |
{ begin | exclude | include }
regular-expression ]
Optional.
Available in any view.
NOTE:
•
Two or more spanning tree devices belong to the same MST region only if they are configured to have
the same format selector (0 by default, not configurable), MST region name, MST region revision level,
and the same VLAN-to-instance mapping entries in the MST region, and they are interconnected via a
physical link.
• The configuration of MST region–related parameters, especially the VLAN-to-instance mapping table,
will result in a new spanning tree calculation. To reduce the possibility of topology instability, the MST
region configuration takes effect only after you activate it by using the active region-configuration
command, or enable a spanning tree protocol by using the stp enable command in the case that the
spanning tree protocol is disabled.