Configuring MST region parameters


[CAUTION: ]

CAUTION:

Changing MST region settings causes spanning tree recalculation. Make sure you understand the impact on your network before you activate the MST region settings.


SPBM runs on MSTI 4092. For two SPBM neighbors to establish an adjacency, you must activate MSTI 4092 on both neighbors and make sure their in-between link has connectivity. To forward traffic on the link, you must also configure the same MST region parameters on the devices, including:

For more information about MST region configuration commands, see spanning tree commands in Layer 2—LAN Switching Command Reference.

To configure MST region parameters on a BEB or BCB:

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

The default MST region name is the MAC address of the device.

4. Set the MSTP revision level.

revision-level level

The default MSTP revision level is 0.

5. Map B-VLANs to MSTI 4092.

instance instance-id vlan vlan-id-list

By default, all VLANs are mapped to the CIST (MSTI 0).

The value for the instance-id argument must be 4092.

6. Activate the MST region configuration.

active region-configuration

N/A