Re: Point-to-point T1 with 2620XM and crossover cable
- From: "Chris" <chriswaltham@xxxxxxxxx>
- Date: 26 Apr 2006 07:48:20 -0700
Merv wrote:
I'm using > a T1 crossover cable (wire 1>5, 2>4 I believe) and, when it's
connected, the "AL" and "CD" lights on the WICs on each router are lit.
T1 is a synchronous tramsmission facility and so the "circuit" has to
be timed.
On a real T1 the circuit would be timed by the carrier and the router's
built in DSU would synch to networkk time. in a back to bak scenario
you need to provide this timing.
This is done by having one of the router clock your "ciurcuit"
Use the "show controller t1" command to find out the controller
designation on your router
controller t1 <controller>
clock source internal
"show controller t1" shows nothing on both routers, i.e. I run the
command and it doesn't give me any output; and then returns to the
enable prompt.
Do I need the "service-module t1 clock source internal" command on one
router, or both? I'm still having the same problems, AL and CD lights
are illuminated on the WICs but Serial0/0 is still down on both routers.
.
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