About justin.barnhill

justin.barnhill · 12-06-2013

Hello everyonecrazy issue here.. everything looks like it should be working but doesnt! a summary would be our 3750 switches will not trunk over fiber (SM or MM) to our core 6500. They work just fine over copper.The funny thing is, ONE 3750 works ove...

justin.barnhill · 01-13-2014

so, after troubleshooting for 7 hours with a Cisco switching expert, we finally determined the cause. Turns out, 1 of 2 supervisor modules (WS-SUP720-3B) had fabric errors, resulting in fiber ports unable to build trunks/access.replaced the supervis...

justin.barnhill · 12-09-2013

perhaps you mean switchports and not endhosts? try checking in Reports > Switch Port > Ports

justin.barnhill · 12-09-2013

Leo, the issue is new 3750s will not pass layer 3 across any fiber trunk to the 6500. i have a test switch physically sitting in front of the 6500, with an LC-LC single-mode patch cable. it will not ping thru 5/1, 6/1, or any other port except 3/43 (...

justin.barnhill · 12-09-2013

Leo: you are seeing 0 tx/rx load because it was unplugged. here is the result when its plugged in:GigabitEthernet6/1 is up, line protocol is up (connected) Hardware is C6k 1000Mb 802.3, address is 001a.a22d.6984 (bia 001a.a22d.6984) Description: Fi...

justin.barnhill · 12-08-2013

there are several fiber ports in use on mod 3 and mod 4 working fine. rack switches, remote switches, etc.any new trunks we try to add only get L2.Mod Ports Card Type Model Serial No....

Member Since	‎12-06-2013 04:15 AM
Date Last Visited	‎08-18-2017 04:28 AM
Posts	10

User Statistics

User Activity

Fiber refusing to pass layer 3 traffic / Copper trunk works

Fiber refusing to pass layer 3 traffic / Copper trunk works

CiscoWorks3.2

Re: Fiber refusing to pass layer 3 traffic / Copper trunk works

Re: Fiber refusing to pass layer 3 traffic / Copper trunk works

Re: Fiber refusing to pass layer 3 traffic / Copper trunk works