procedure for troubleshooting WAN links

Unanswered Question
Jun 27th, 2008
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Hi I'm jr. engineer where I work and we have a couple frame relay circuits, and several T1's and T3's via teleco providers. It seems that when I have issues I'm always fighting with the Teleco for assistance. When I have issues on the link I hop on the router and look at the "sh interface” command and start diagnosing from there. I guess I'm just looking for a better procedure when diagnosing a down line. If anyone as suggestions on steps that they take I would be interested in hearing



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