HP 5400ZL - Manual (Page 155)

Multiple Instance Spanning-Tree Operation
Configuring MSTP
Example. To configure BPDU protection on ports 1 to 10 with SNMP traps
enabled, enter:
ProCurve(config)# spanning-tree 1-10 bpdu protection
ProCurve(config)# spanning-tree trap errant-bpdu
The following steps will then be set in process:
1. When an STP BPDU packet is received on ports 1-10, STP treats it as an
unauthorized transmission attempt and shuts down the port that the
BPDU came in on.
2. An event message is logged and an SNMP notification trap is generated.
3. The port remains disabled until re-enabled manually by a network admin­
istrator using the interface <port-list> enable command.
N o t e To re-enable the bpdu-protected ports automatically, configure a timeout
period using the
spanning-tree bpdu-protection-timeout command.
Viewing BPDU Protection Status. The show spanning-tree bpdu-protection
command displays a summary listing of ports with BPDU protection enabled.
To display detailed per port status information, enter the specific port
number(s) as shown in Figure 4-8 below.
ProCurve(config)# show spanning-tree bpdu-protection a1
Status and Counters - STP BPDU Protection Information
Specifying the port displays
additional status information
BPDU Protection Timeout (sec) : 0
for the designated ports.
Protected Ports : A1
Port Type Protection State Errant BPDUs
---- ------------ ------------- -------------- ---------------
A1 100/1000T Yes Bpdu Error 1
Figure 4-8. Example of Show Spanning Tree BPDU Protection Command
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