R21xx-HP FlexFabric 11900 Layer 2 LAN Switching Command Reference

106
Field Descri
p
tion
Protocol Std. Spanning tree protocol standard.
Version Spanning tree protocol version.
CIST Bridge-Prio. Device's priority in the CIST.
Max age(s) Aging timer (in seconds) for BPDUs.
Forward delay(s) Port state transition delay (in seconds).
Hello time(s) Interval (in seconds) for the root bridge to send BPDUs.
Max hops Maximum hops in the MSTI.
Related commands
reset stp
display stp abnormal-port
Use display stp abnormal-port to display information about ports that are blocked by spanning tree
protection functions.
Syntax
display stp abnormal-port
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# In MSTP mode, display information about ports that are blocked by spanning tree protection functions.
<Sysname> display stp abnormal-port
MSTID Blocked Port Reason
1 Ten-GigabitEthernet1/0/1 Root-Protected
2 Ten-GigabitEthernet1/0/2 Loop-Protected
12 Ten-GigabitEthernet1/0/3 Loopback-Protected
Table 26 Command output
Field Descri
p
tion
MSTID MSTI of the blocked port.
Blocked Port Name of a blocked port.
Reason
Reason that the port was blocked:
• Root-Protected—Root guard function.
• Loop-Protected—Loop guard function.
• Loopback-Protected—Self-loop protection. A port in the MSTI receives a BPDU that
it sends.
• Disputed—Dispute protection. A port receives a low-priority BPDU from a
non-blocked designated port.