Loop troubleshooting
Does anyone know how to troubleshoot a loop or see if one really exists. I started at a new company and there seems to be some slowness issues. This morning I tried to do a ping for a test and received a message back that the TTL expired in transit. Any debugging I should be doing to figure this out? Any help would be great.
Thanks!
Thanks!
Comments
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Aldur
Member Posts: 1,460
Traceroute is a good place to start."Bribe is such an ugly word. I prefer extortion. The X makes it sound cool."
-Bender -
networker050184
Mod Posts: 11,962 Mod
Traceroute is a good place to start.
+1
If you are getting TTL expired it may be getting routed back and forth between two devices. The traceroute should show you where.An expert is a man who has made all the mistakes which can be made. -
Hyper-Me
Banned Posts: 2,059
If your switches are locking up you can unplug each IDF link until it returns to normal to isolate it in the building...well thats assuming its in one building/area.
Thats the redneck way our network team does it.
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hypnotoad
Banned Posts: 915
show port statistics and see if any ports are reporting excessive traffic and/or spanning-tree issues. making a diagram helps too.
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bmwagner
Member Posts: 15 ■□□□□□□□□□
That pointed it out exactly!!! I was trying to think to hard about it. Hate when that happens!