3com S7906E Guía De Referencia

 

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stp timer-factor number 

undo stp timer-factor 

System view 

2: System level 

number: Timeout factor, in the range of 1 to 20.  

Use the stp timer-factor command to configure the timeout time of the device by setting the timeout 

factor. Timeout time = timeout factor × 3 × hello time.  

Use the undo stp timer-factor command to restore the default timeout factor.  

By default, the timeout factor of the device is set to 3.  

After the network topology is stabilized, each non-root-bridge device forwards configuration BPDUs to 

the surrounding devices at the interval of hello time to check whether any link is faulty. Typically, if a 

device does not receive a BPDU from the upstream device within nine times the hello time, it will 

assume that the upstream device has failed and start a new spanning tree calculation process.  

In a very stable network, this kind of spanning tree calculation may occur because the upstream device 

is busy. In this case, you can avoid such unwanted spanning tree calculations by lengthening the 

timeout time (by setting the timeout factor to 4 or more). We recommend that you set the timeout factor 

to 5, or 6, or 7 for a stable network.  

# Set the timeout factor of the device to 7.  

<Sysname> system-view 

[Sysname] stp timer-factor 7 

stp transmit-limit packet-number 

undo stp transmit-limit 

Ethernet port view, port group view, Layer-2 aggregate port view 

2: System level