H3C Technologies H3C S7500E Series Switches - Manual (Page 196)

13-44
To do... Use the command... Remarks
View the status information and statistics
information of MSTP (on a distributed
device)
display stp [ instance instance-id ]
[ interface interface-list | slot
slot-number ] [ brief ]
Available in any view
View the status information and statistics
information of MSTP (on a distributed
IRF member device)
display stp [ instance instance-id ]
[ interface interface-list | chassis
chassis-number slot slot-number ]
[ brief ] [ | { begin | exclude |
include } regular-expression ]
Available in any view
View the MST region configuration
information that has taken effect
display stp region-configuration Available in any view
View the root bridge information of all
MSTIs
display stp root Available in any view
Clear the statistics information of MSTP reset stp [ interface interface-list ] Available in user view
MSTP Configuration Example
Network requirements
As shown in Figure 13-10 ,
All devices on the network are in the same MST region. Device A and Device B work on the
distribution layer, while Device C and Device D work on the access layer.
Configure MSTP so that packets of different VLANs are forwarded along different spanning trees:
Packets of VLAN 10 are forwarded along MSTI 1, those of VLAN 30 are forwarded along MSTI 3,
those of VLAN 40 are forwarded along MSTI 4, and those of VLAN 20 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, so the root bridges of MSTI 1 and MSTI 3 are Device A
and Device B respectively, while the root bridge of MSTI 4 is Device C.