LevelOne GSW-2690 Manuale Utente

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User Manual    
Publication date: June, 2005  
Revision A1 
86 
 
Forward Delay: 
You can set the root bridge forward delay time. This figure is set by root 
bridge only. The forward delay time is defined as the time spent from 
Listening state moved to Learning state and also from Learning state 
moved to Forwarding state of a port in bridge. The forward delay time 
contains two states, Listening state to Learning state and Learning state 
to Forwarding state. It assumes that forward delay time is 15 seconds, 
then total forward delay time will be 30 seconds. This has much to do 
with the STP convergent time which will be more than 30 seconds 
because some other factors.  
The valid value is 4 ~ 30 seconds, default is 15 seconds. 
Force Version: 
Two options are offered for the user’s choosing STP algorithm. One is 
RSTP and the other is STP.  If STP is chosen, RSTP will run as a legacy 
STP. The switch supports RSTP (802.1w) which is backward compatible 
with STP (802.1d). 
 
 
           Fig. 3-34