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Multiple Instance Spanning-Tree Operation
Configuring MSTP
Figure 3-10. PVST Switch Being Isolated after Sending a PVST BPDU
 Note This is similar to the BPDU Guard feature where BPDU protection is applied 
to edge ports connected to end user devices that do not run STP. If STP BPDU 
packets are received on a protected port, the feature will disable that port and 
alert the network manager via an SNMP trap.
For example, to enable the PVST protection feature on ports 4 through 8, enter 
this command:
HP Switch(config)# spanning-tree 4-8 pvst-protection
To disable the PVST protection feature on a port, for example, port 4, use this 
command:
HP Switch(config)# no spanning-tree 4 pvst-protection
Syntax: [no] spanning-tree <port-list> pvst-protection
Enables or disables the PVST protection feature on the port or 
range of ports specified. The command indicates which ports 
are not expected to receive any PVST BPDUs.
Default: Disabled on all ports