Adjust spanning tree time

Unanswered Question
Sep 9th, 2007

Hi all,

If resilient network is changes, I have counted that STP need about 45 sec for network resume.

what is the machanism for this 45 sec ?

Can I adjust STP so that network can be recovery as soon as possible ?

I have this problem too.
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jorgenolla Sun, 09/09/2007 - 12:24

The time it takes for a port to transition from blocking to the forwarding state is 30 to 50 seconds (20 sec max age, 15 sec listening, 15 sec learning). Although it is possible to tune these timers, the recommendation is to leave those timers at their default value.

As Joseph said, used RSTP instead; or consider using Uplink Fast, and Backbonefast.

Best Regards

glen.grant Sun, 09/09/2007 - 12:25

Use rapid spanning tree , I would not mess around with normal spanning tree timers . You will have to implement this across all your switches .

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