H3C S6850 Series Configuration Guide

29
2. Set the spanning tree mode.
stp mode { mstp | pvst | rstp | stp }
The default setting is the MSTP mode.
Configuring an MST region
About MST region
Spanning tree devices belong to the same MST region if they are both connected through a physical
link and configured with the following details:
• Format selector (0 by default, not configurable).
• MST region name.
• MST region revision level.
• VLAN-to-instance mapping entries in the MST region.
The configuration of MST region-related parameters (especially the VLAN-to-instance mapping table)
might cause MSTP to begin a new spanning tree calculation. To reduce the possibility of topology
instability, the MST region configuration takes effect only after you activate it by doing one of the
following:
• Use the
active region-configuration command.
• Enable a spanning tree protocol by using the
stp global enable command if the spanning
tree protocol is disabled.
Restrictions and guidelines
In STP, RSTP, or PVST mode, MST region configurations do not take effect.
Procedure
1. Enter system view.
system-view
2. Enter MST region view.
stp region-configuration
3. Configure the MST region name.
region-name name
The default setting is the MAC address.
4. Configure the VLAN-to-instance mapping table. Choose one option as needed:
{ Map a list of VLANs to an MSTI.
instance instance-id vlan vlan-id-list
{ Quickly create a VLAN-to-instance mapping table.
vlan-mapping modulo modulo
By default, all VLANs in an MST region are mapped to the CIST (or MSTI 0).
5. Configure the MSTP revision level of the MST region.
revision-level level
The default setting is 0.
6. (Optional.) Display the MST region configurations that are not activated yet.
check region-configuration
7. Manually activate MST region configuration.
active region-configuration

H3C S6850 Series Specifications

General

Brand	H3C
Model	S6850 Series
Category	Switch
Language	English