From: Taz Kazam (taz_kazam@xxxxxxxxxxx)
Date: Fri Dec 07 2001 - 08:48:38 GMT-3
Thanks Francois
I managed to find out. I think that the Cat1900 has
the ports status set to PORTFAST by default (command:
start-forwarding), hence, it removes the foward delay
time (15+15) = 30 sec, only using MaxAge = 20 sec.
If you configure the port with no start-forwarding
i.e. disable the PORTFAST, it then takes the 50
seconds to change over.
Thanks you you reply.
Taz.
--- Rivron Francois <Francois.Rivron@ei-rsi.fr>
wrote: > Hello,
> my think is as the switch is able to detect a fault
> at a physical level, the
> port state of the redondant link is move directly to
> listening state. So the
> redondant path should be on in 30s.
>
> Francois
>
> > -----Message d'origine-----
> > De: Taz Kazam [SMTP:taz_kazam@yahoo.co.uk]
> > Date: vendredi 7 dicembre 2001 10:38
> > @: thegroup
> > Objet: Spantree Timer
> >
> > Can anyone help.
> >
> > I've step up four 1900 Catalyst switch in a loop,
> to
> > test spanning tree. One port changes its state to
> > blocking, as I expected, however, when I take the
> > cable out of the non-redundant path, which cause
> the
> > redundant path to change from blocking to
> fowarding -
> > it does, but it only take 20 seconds. From my
> reading
> > this should take 50 seconds (15sec fwd delay -
> 20sec
> > MaxAge) Blocking -----15-----Listen---
> > 15-----Learning----20------Fowarding. Im using the
> > default factory settings!
> >
> > Anyone can help?
> >
> > Taz.
> >
> >
>
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