Allied Telesis Rapier Switch - Manual (Page 55)

Layer 2 Switching 55
Rapier Switch Software Release 2.2.1
C613-02013-00 Rev A
The spanning tree algorithm can be recalculated at any time, and all timers and
counters be initialised, using the command:
RESET STP={stpname|ALL}
To show STP counters, use the command:
SHOW STP[={stpname|ALL}] COUNTER
Figure 16: Example output from the SHOW STP COUNTER command
Designated Port The Port Identifier of the Designated Bridge through which
the Designated Bridge transmits Configuration BPDU
information stored by this port.
STP Counters
------------------------------------------------------------
STP Name: default
Receive: Transmit:
Total STP Packets 0 Total STP Packets 0
Configuration BPDU 0 Configuration BPDU 0
TCN BPDU 0 TCN BPDU 0
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
------------------------------------------------------------
Table 12: Parameters in the output of the SHOW STP COUNTER command
Parameter Meaning
STP Name The name of the STP.
Receive STP packets received.
Total STP Packets The total number of STP packets received. Valid STP
packets comprise Configuration BPDUs and Topology
Change Notification (TCN) BPDUs.
Configuration BPDU The number of valid Configuration BPDUs received.
TCN BPDU The number of valid Topology Change Notification BPDUs
received.
Invalid BPDU The number of invalid STP packets received.
Transmit STP packets transmitted.
Total STP packets The total number of STP packets transmitted.
Configuration BPDU The number of Configuration BPDUs transmitted.
TCN BPDU The number of Topology Change Notification BPDUs
transmitted.
Discarded STP packets discarded.
Table 11: Parameters displayed in the output of the SHOW STP PORT command
Parameter Meaning