Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have setup some bridge interface with 4 ethernet port. My problem is, when they detect some network topology change, the bridge really need a lot of time to have done it.

Is there any solution, so the bridge can detect topology change faster ?

share|improve this question

migrated from Mar 17 '10 at 12:37

This question came from our site for professional and enthusiast programmers.

So... what OS (if a software bridge), what switch vendor? What model? Are you talking topology change as in a spanning-tree change or simply an access port going up or down? – MikeyB Jul 29 '11 at 18:51

Usually it is spanning tree protocol causing this. You can either disable it and risk bridge loops (your network will be down) or better find how to configure the interfaces to do fast checks (portfast in cisco).

some hints here:

share|improve this answer
is it mean, more ethernet port I used in bridge network, it would take longer the process ? – deddihp Mar 17 '10 at 8:58
Portfast disables spanning tree protocol on those ports, which is probably not what you want on bridge ports. Have a look at Rapid Spanning Tree Protocol (RSTP), which takes about 15 seconds or so. – Martijn Heemels Jun 10 '10 at 23:19
I would recommend MST above RSTP - it's cross-vendor and ought to be universal for decent switches these days. – MikeyB Jul 29 '11 at 18:50

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.