HP 3400CL-24G manual Operating Notes, BPDUs Tx BPDUs Rx 256654

Enhancements

Release M.10.04 Enhancements

The following shows RSTP sample output from the enhanced command.

ProCurve# show spanning-tree detail

Status and Counters - RSTP Port(s) Detailed Information

Port		: 1
Status		: Up
Role		: Root
State		: Forwarding
Priority		: 128
Path Cost		: 200000
Root Path Cost		: 10
Root Bridge ID		: 1:0001e7-215e00
Designated Bridge ID		: 32768:0001e7-3d0080
Designated Port ID		: 128:75
AdminEdgePort		: Yes
OperEdgePort		: No
AdminPointToPointMAC		: Force-True
OperPointToPointMAC		: Yes
Aged BPDUs Count		: 0
Loop-back BPDUs Count		: 0
TC Detected		: 1	TC ACK Flag Transmitted			: 0
TC Flag Transmitted		: 0
TC Flag Received		: 0	TC ACK Flag Received			: 47
RSTP	RSTP	CFG	CFG	TCN	TCN
BPDUs Tx	BPDUs Rx	BPDUs Tx	BPDUs Rx	BPDUs Tx	BPDUs Rx
----------	----------	----------	----------	----------	----------
3	0	0	256654	47	0

Figure 19. Example of Show Spanning-Tree Detail

Operating Notes

■TC refers to a Topology Change detected on the given port. Note the following details:

•TC Detected counter shows when a port identifies a topology change (increments when the particular non-Edge port goes into forwarding). For RSTP and MSTP, this would be due to the switch’s link going to forwarding.

•TC Flag Transmitted counter shows the number of TC notifications sent out of the port. This refers to propagating a topology change that occurred on another port (that is, a TC Detected increment) or to propagating a topology change received on another port (that is, TC Flag Received).

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