Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 3 Bridge Configuration Commands
3Com Corporation
3-15
Enable spanning-tree protocol event debugging functions.
STP : HoldTicks is run on port 3
STP : HelloTicks is run
STP : Port 0 id is 1,port state is 0,designatedport is 0
STP : Port 0 id is 2,port state is 0,designatedport is 0
STP : Creat HoldTimer on port 3 ,timeout is 1
STP : Port 32771 id is 3,port state is 4,designatedport is 32771
STP : Creat HoldTimer ,timeout is 2
STP : HoldTicks is run on port 3
STP : HelloTicks is run
STP : Creat TcnTimer ,timeout is 2
STP : Delete tcn timer id 5413032
Table 3-2 Description on the fields of the debugging stp event command
Field Description
STP : HoldTicks is run on port 3
A BPDU is sent when the HoldTicks
timer running on port 3 expires.
STP : HelloTicks is run
A Hello packet is sent when the
HelloTicks timer expires.
STP : Port 0 id is 1,port state is
Forwarding,designatedport is Yes
The ID of port 0 is 1, its state is
forwarding, and it is the designated port.
STP : Creat TcnTimer ,timeout is 2
A TCN timer set to two seconds is
created.
STP : Delete tcn timer id 5413032 The timer with ID 5413032 is deleted.
# Enable STP error debugging.
<Router> debugging stp error
Enable spanning-tree protocol error debugging functions.
STP: Received BPDU is corrupted.
STP: Fail to create MBuf.
STP: Fail to send Configuration BPDU.
STP: Fail to send TCN BPDU.
STP: Received BPDU sent by myself.
STP: Get a wrong port index.
Table 3-3 Description on the fields of the debugging stp error command
Field Description
STP: Received BPDU is corrupted. The received BPDU is corrupted.
STP: Fail to create MBuf.
The request for the memory for a
transmitted BPDU is denied.