Specifications

Switching show stp counter 8-203
Software Release 2.7.3
C613-03098-00 REV A
show stp counter
Syntax SHow STP[={stp-name|ALL}] COUnter
where stp-name is a character string 1 to 15 characters long. Valid characters are
uppercase and lowercase letters, digits, the underscore, and the hyphen. The
stp-name cannot be all.
Description This command displays Spanning Tree Protocol counters for the specified STP
or all STPs (Figure 8-33 on page 8-203, Table 8-52 on page 8-203). If no STP is
specified, then counters for all STPs are displayed. If the port link status is
down, then no STP BPDUs are transmitted on the port.
Figure 8-33: Example output from the show stp counter command
STP Counters
------------------------------------------------------------
STP Name: default
Receive: Transmit:
Total STP Packets 0 Total STP Packets 1677
Configuration BPDU 0 Configuration BPDU 0
TCN BPDU 0 TCN BPDU 0
RST BPDU 0 RSTP BPDU 1677
Invalid BPDU 0
Discarded:
Port Disabled 0
Invalid Protocol 0
Invalid Type 0
Invalid Message Age 0
Config BPDU length 0
TCN BPDU length 0
RST BPDU length 0
------------------------------------------------------------
Table 8-52: Parameters in the output of the show stp counter command
Parameter Meaning
STP Name Name of the STP.
Receive
STP packets received.
Total STP Packets Total number of STP packets received. Valid STP packets
comprise Configuration BPDUs and Topology Change
Notification (TCN) BPDUs.
Configuration BPDU Number of valid Configuration BPDUs received.
TCN BPDU Number of valid Topology Change Notification BPDUs
received.
RST BPDU Number of valid Rapid Spanning Tree BPDUs received (rapid
mode only).
Invalid BPDU Number of invalid STP packets received.
Trans mi t
STP packets transmitted.
Total STP packets Total number of STP packets transmitted.
Configuration BPDU Number of Configuration BPDUs transmitted.
TCN BPDU Number of Topology Change Notification BPDUs
transmitted.