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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.
<device> 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