1586 Serviceability Tracing Packet CommandsCommand ModePrivileged EXEC mode.User GuidelinesThere are no user guidelines for this command.Exampleconsole#debug sflow packetdebug spanning-treeUse the debug spanning-tree command to trace spanning tree BPDU packetreception and transmission. The receive option traces only received spanningtree BPDUs and the transmit option traces only transmitted BPDUs. Whenneither keyword is used in the command, all spanning tree BPDU traces aredumped. Vital information such as source address, destination address,control packet type, packet length, and the interface on which the packet isreceived or transmitted is displayed on the console. Use the no form of thiscommand to disable tracing of spanning tree BPDUs.Syntaxdebug spanning-tree bpdu [ receive | transmit ]no debug spanning-tree bpdu [ receive | transmit ]Default ConfigurationDisplay of spanning tree BPDU traces is disabled by default.Command ModePrivileged EXEC mode.User GuidelinesThere are no user guidelines for this command.Exampleconsole#debug spanning-tree bpdu
