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loop

Hi,

  i have completely down network, i observed loop guard logs on 4 switches all connected on the same switch 3550.

2 REPLIES
Hall of Fame Super Silver

Re: loop

Hello Ibrahim,

you need to break the loop:

I would unplug the cables of the ports that showed the error messages just to start.

If you can recover the network you can also then understand the problem by shutting all the links and then enabling one at once.

Hope to help

Giuseppe

Bronze

Re: loop

it will be great to see the diagram and config of other devices. but check this site:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080094640.shtml

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