HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 135
Configuring BPDU Protection, Example of BPDU Filter in Show Spanning Tree Configuration Command
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Multiple Instance Spanning-Tree Operation Configuring MSTP For example, to configure BPDU filtering on port a9, enter: ProCurve(config)# spanning-tree a9 bpdu-filter Viewing BPDU Filtering. The spanning-tree show < port> configuration command displays the BPDU's filter state. ProCurve(config)# show spanning-tree a9 config Column showing BPDU filter status ... | Path Prio Admin Auto Admin Hello Root TCN BPDU Port Type | Cost rity Edge Edge PtP Time Guard Guard Flt A9 100/1000T | Auto 128 No Yes True Global No No Yes Figure 4-5. Example of BPDU Filter in Show Spanning Tree Configuration Command BPDU filters per port are displayed as separate entries of the spanning tree category within the configuration file. ProCurve(config)# show configuration . . . spanning-tree Rows showing ports with BPDU filters enabled spanning-tree A9 bpdu-filter spanning-tree C7 bpdu-filter spanning-tree Trk2 priority 4 . . . Figure 4-6. Example of BPDU Filters in the Show Configuration Command Configuring BPDU Protection BPDU protection is a security feature designed to protect the active STP topology by preventing spoofed BPDU packets from entering the STP domain. In a typical implementation, BPDU protection would be 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 as shown in Figure 4-7. 4-31