103
Task Command
slot-number
]
[
brief
]
Display the MST region configuration information that
has taken effect.
display stp region-configuration
Display the root bridge information of all MSTIs.
display stp root
Clear the spanning tree statistics.
reset stp
[
interface
interface-list
]
Spanning tree configuration example
MSTP configuration example
Network requirements
As shown in
, all devices on the network are in the same MST region. Device A and Device
B work at the distribution layer. Device C and Device D work at the access layer.
Configure MSTP so that packets of different VLANs are forwarded along different spanning trees.
•
VLAN 10 packets are forwarded along MSTI 1.
•
VLAN 30 packets are forwarded along MSTI 3.
•
VLAN 40 packets are forwarded along MSTI 4.
•
VLAN 20 packets are forwarded along MSTI 0.
VLAN 10 and VLAN 30 are terminated on the distribution layer devices, and VLAN 40 is terminated
on the access layer devices. The root bridges of MSTI 1 and MSTI 3 are Device A and Device B,
respectively, and the root bridge of MSTI 4 is Device C.
Figure 28 Network diagram
Configuration procedure
1.
Configure VLANs and VLAN member ports. (Details not shown.)
{
Create VLAN 10, VLAN 20, and VLAN 30 on both Device A and Device B.
{
Create VLAN 10, VLAN 20, and VLAN 40 on Device C.
{
Create VLAN 20, VLAN 30, and VLAN 40 on Device D.
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