H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 213)

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Configuration Example
# Enable log/trap output for the ports of instance 1.
system-view
[device] stp instance 1 portlog
# Enable log/trap output for the ports of all instances.
system-view
[device] stp portlog all
Enabling Trap Messages Conforming to 802.1d Standard
The device sends trap messages conforming to 802.1d standard to the network management device in
the following two cases:
z
The device becomes the root bridge of an instance.
z
Network topology changes are detected.
Configuration procedure
Follow these steps to enable trap messages conforming to 802.1d standard:
To do… Use the command… Remarks
Enter system view system-view —
Enable trap messages conforming
to 802.1d standard in an instance stp [ instance instance-id ] dot1d-trap
[ newroot | topologychange ] enable
Required
Configuration example
# Enable the device to send trap messages conforming to 802.1d standard to the network management
device when the device becomes the root bridge of instance 1.
system-view
[device] stp instance 1 dot1d-trap newroot enable
Displaying and Maintaining MSTP
To do… Use the command… Remarks
Display the state and statistics
information about spanning trees
of the current device display stp [ instance instance-id ]
[ interface interface-list | slot slot-number ]
[ brief ] Available in any view
Display region configuration display stp region-configuration Available in any view
Display information about the ports
that are shut down by STP
protection
display stp portdown Available in any view
Display information about the ports
that are blocked by STP protection
display stp abnormalport Available in any view
Display information about the root
port of the instance where the
device reside
display stp root Available in any view
Clear statistics about MSTP reset stp [ interface interface-list ] Available in any view