Operation Manual – MSTP
H3C S3100 Series Ethernet Switches Chapter 1 MSTP Configuration
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Operation Command
Display information about the ports that
are shut down by STP protection
display stp portdown
Display information about the ports that
are blocked by STP protection
display stp abnormalport
Display information about the root port of
the instance where the switch reside
display stp root
Clear statistics about MSTP reset stp [ interface interface-list ]
1.13 MSTP Configuration Example
I. Network requirements
Implement MSTP in the network shown in Figure 1-10 to enable packets of different
VLANs to be forwarded along different spanning tree instances. The detailed
configurations are as follows:
z All switches in the network belong to the same MST region.
z Packets of VLAN 10, VLAN 30, VLAN 40, and VLAN 20 are forwarded along
spanning tree instance 1, instance 3, instance 4, and instance 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 spanning tree instance 1 and spanning tree
instance 3 respectively. Switch C is configured as the root bridge of spanning tree
instance 4.
II. Network diagram
Figure 1-10 Network diagram for MSTP configuration
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