01-21-2009 07:07 AM - edited 03-06-2019 03:33 AM
Hi,
i have completely down network, i observed loop guard logs on 4 switches all connected on the same switch 3550.
01-21-2009 08:30 AM
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
01-21-2009 08:41 AM
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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