R3102-R3103-HP 6600/HSR6600 Routers Layer 2 - LAN Switching Configuration Guide

[RouterC] stp enable

5. Configure Router D:

# Enter MST region view, and configure the MST region name as example. Map VLAN 10, VLAN

30, and VLAN 40 to MSTI 1, MSTI 3, and MSTI 4, respectively. Configure the revision level of the

MST region as 0.

<RouterD> system-view

[RouterD] stp region-configuration

[RouterD-mst-region] region-name example

[RouterD-mst-region] instance 1 vlan 10

[RouterD-mst-region] instance 3 vlan 30

[RouterD-mst-region] instance 4 vlan 40

[RouterD-mst-region] revision-level 0

# Activate MST region configuration.

[RouterD-mst-region] active region-configuration

[RouterD-mst-region] quit

# Enable the spanning tree feature globally.

[RouterD] stp enable

6. Verify the configuration:

In this example, suppose Router B has the lowest root bridge ID. As a result, Router B is elected as

the root bridge of MSTI 0.

You can use the display stp brief command to display brief spanning tree information on each

device after the network is stable.

# Display brief spanning tree information on Router A.

[RouterA] display stp brief

MSTID Port Role STP State Protection

0 GigabitEthernet4/0/1 ALTE DISCARDING NONE

0 GigabitEthernet4/0/2 DESI FORWARDING NONE

0 GigabitEthernet4/0/3 ROOT FORWARDING NONE

1 GigabitEthernet4/0/1 DESI FORWARDING NONE

1 GigabitEthernet4/0/3 DESI FORWARDING NONE

3 GigabitEthernet4/0/2 DESI FORWARDING NONE

3 GigabitEthernet4/0/3 ROOT FORWARDING NONE

# Display brief spanning tree information on Router B.

[RouterB] display stp brief

MSTID Port Role STP State Protection

0 GigabitEthernet4/0/1 DESI FORWARDING NONE

0 GigabitEthernet4/0/2 DESI FORWARDING NONE

0 GigabitEthernet4/0/3 DESI FORWARDING NONE

1 GigabitEthernet4/0/2 DESI FORWARDING NONE

1 GigabitEthernet4/0/3 ROOT FORWARDING NONE

3 GigabitEthernet4/0/1 DESI FORWARDING NONE

3 GigabitEthernet4/0/3 DESI FORWARDING NONE

# Display brief spanning tree information on Router C.

[RouterC] display stp brief

MSTID Port Role STP State Protection

0 GigabitEthernet4/0/1 DESI FORWARDING NONE