Re: STP

Hello and good evening Paul,

IMO, waiting a short while sounds like you would be configuring timers.
Timers are most important in traditional STP mode. Remember that the newer
versions or implementations of STP have built in 'smarts' like backbone
fast, uplink fast, etc ... so the timers for these, in once sense, are
already optimized. IMO, when given a scenario as asked to configure a timer
such as you have been given, it is best to leave the switch at the default
older mode of STP and configure the timers per the link below.

Here is a good link (watch the word wrap):

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_50_se/configuration/guide/swstp.html#wp1170388

As you see, you can configure the timers to meet the 15 seconds forwarding
delay / time.

If you can lab this, this sounds like an interesting and learning lab! Good
luck and HTH,

Andrew Lee Lissitz

On Sat, Apr 18, 2009 at 3:14 PM, Paul Adams <ccie.paul_at_gmail.com> wrote:

> Hi GS,
>
> SW2 is connected to SW4 on ports ( fa 0/23 & fa0/24 ), when the port failed
> the other port will wait for 15 seconds before the interface begins
> forwarding
>
> what would be the correct solution in case of STP mode MST & STP mode PVST
>
> thanks
>
>
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-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net