R0106-HP MSR Router Series Layer 2 - LAN Switching Command Reference(V7)

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display stp down-port
Use display stp down-port to display information about ports that were shut down by spanning tree
protection functions.
Syntax
display stp down-port
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display information about ports that were shut down by spanning tree protection functions.
<Sysname> display stp down-port
Down Port Reason
GigabitEthernet2/1/1 BPDU-Protected
Table 15 Command output
Field Descri
p
tion
Down Port Name of a port that was shut down by the spanning tree protection functions.
Reason
Reason that the port was shut down. BPDU-Protected indicates the BPDU guard
function.
display stp history
Use display stp history to display historical port role calculation information.
Syntax
MSR2000/MSR3000:
display stp [ instance instance-list | vlan vlan-id-list ] history
MSR4000:
display stp [ instance instance-list | vlan vlan-id-list ] history [ slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
instance instance-list: Displays the historical port role calculation information for the MSTIs that are
specified by an instance list. They are in the format of instance-list = { instance-id [ to