Displaying And Debugging Mstp; Mstp Configuration Example - H3C S7500 Series Operation Manual

Operation Manual – MSTP
H3C S7500 Series Ethernet Switches

1.9 Displaying and Debugging MSTP

Display spanning tree-related
information about the current switch
Display the region configuration
information
Clear MSTP-related statistics

1.10 MSTP Configuration Example

I. Network requirements
Implement MSTP in the network shown in
VLANs to be forwarded along different MSTIs. The detailed configurations are as
follows:
All switches in the network belong to the same MST region.
Packets of VLAN 10, VLAN 30, VLAN 40, and VLAN 20 are forwarded along MSTI
1, MSTI 3, MSTI 4, and MSTI 0 respectively.
In this network, Switch A and Switch B operate on the convergence layer; Switch C and
Switch D operate on the access layer. VLAN 10 and VLAN 30 are limited in the
convergence layer and VLAN 40 is limited in the access layer. Switch A and Switch B
are configured as the root bridges of MSTI 1 and MSTI 3 respectively. Switch C is
configured as the root bridge of MSTI 4.
II. Network diagram
Switch A
Permit:
VLAN 10,20
Switch C
Figure 1-7 Network diagram for implementing MSTP
To do ...
Permit:all VLAN
Permit:
VLAN 10,20
Permit:VLAN 20,40
1-41
Chapter 1 MSTP Configuration
Use the command ...
display stp [ instance instance-id ]
[ interface interface-list | slot slot-number ]
[ brief ]
display stp region-configuration
reset stp [ interface interface-list ]
Figure 1-7 to enable packets of different
Switch B
Permit:
VLAN 20,30
Permit:
VLAN 20,30
Switch D