Debug Spanning-Tree - Dell PowerConnect 6224 Command Line Interface Manual

Syntax
debug sflow packet
no debug sflow packet
Default Configuration
Display of sFlow traces is disabled by default.
Command Mode
Privileged EXEC mode.
Usage Guidelines
There are no usage guidelines for this command.
Example
console#debug sflow packet

debug spanning-tree

Use the debug spanning-tree command to trace spanning tree BPDU packet
reception and transmission. The receive option traces only received spanning
tree BPDUs and the transmit option traces only transmitted BPDUs. When
neither keyword is used in the command, all spanning tree BPDU traces are
dumped. Vital information such as source address, destination address,
control packet type, packet length, and the interface on which the packet is
received or transmitted is displayed on the console. Use the "no" form of this
command to disable tracing of spanning tree BPDUs.
Syntax
debug spanning-tree bpdu [ receive | transmit ]
no debug spanning-tree bpdu [ receive | transmit ]
Default Configuration
Display of spanning tree BPDU traces is disabled by default.
1218
Serviceability Tracing Packet Commands