Re: spanning-tree forward timer

HI,

Normal switch port go through following stages before it forward traffic

Blocking ------>Listening ----------Learning

Cisco IOS has implement these timers as follows

Time wait in the Blocking stage = Max age
Time wait in the Listening stage = Forwad-time
Time wait in the Listening stage = Forward time

(Time wait in the Listening stage + Time wait in the Listening stage) = 2 *
Forward time

so you can set your time as follows

Max age = 4S
Forward time = 3S

Total time taken before move in to forward will be = 4S + (2 * 3S) = 10S

Cheers

On Wed, Nov 28, 2012 at 4:20 PM, ccie99999 <ccie99999_at_gmail.com> wrote:

> hello,
>
> I just need this clarification:
>
> If I'm asked to set up that a new port should wait 10 seconds for
> transitioning to a forward state, what value should I set up here?
>
> spanning-tree vlan 1-x forward-time 10 or 5?
>
> I don't understand if the value is simply the amount of seconds the
> interface will wait before going in forwarding state or if it is the amount
> how seconds assigned to learning + listening state..
>
> thanks
>
> --
> @ccie99999
>
>
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Received on Wed Nov 28 2012 - 16:29:25 ART