Display Stp Abnormal-Port - H3C MSR 20-20 Command Reference Manual

600 C 38: MSTP C
HAPTER

display stp abnormal-port

Syntax
View
Parameters
Description
Examples
C
ONFIGURATION OMMANDS
<Sysname> display stp instance 0 interface Ethernet 1/1 to Ethernet
1/4 GigabitEthernet 1/1 to GigabitEthernet 1/4 brief
MSTID Port
0 Ethernet1/1
0 Ethernet1/2
0 Ethernet1/3
0 Ethernet1/4
0 GigabitEthernet1/1
0 GigabitEthernet1/2
0 GigabitEthernet1/3
0 GigabitEthernet1/4*
(*) means port in aggregation group
Table 103 Description on the fields of the display stp command
Field
MSTID
Port
Role
STP State
Protection
(*) means port in aggregation
group
display stp abnormal-port
Any view
None
Use the
display stp abnormal-port
abnormally blocked ports.
Any of the following reasons may cause a port to be abnormally blocked:
Root guard action
■
Loop guard action
■
MSTP BPDU format compatibility protection action
■
# View information about abnormally blocked ports.
<Sysname> display stp abnormal-port
MSTID Blocked Port
1 Ethernet1/0
2 Ethernet1/1
2 Ethernet1/2
Role STP State
ALTE DISCARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
DESI FORWARDING
Description
MST instance ID in the MST region
Port name, corresponding to each MST instance
Port role
MSTP status on the port, including forwarding, discarding, and
learning
Protection type on the port, including root guard, loop guard,
and BPDU guard
* indicates a port in an aggregation group
command to view the information about
Reason
ROOT-Protected
LOOP-Protected
Formatcompatibility-Protected
Protection
LOOP
NONE
NONE
NONE
NONE
NONE
NONE
NONE