Tried making one end of these ckts a clock source?

Brian "Sonic" Whalen
Success = Preparation + Opportunity


On Sat, 22 Dec 2001, Randall Yoo wrote:

> Sorry for cross-posting.
>
> I've got a cheap customer who wants to continue to use Cisco 1000 routers
> (IOS 10.3(10)) with external Adtran TSU's (P/N: 1200.060L1).  Currently,
> they're running a 3-site frame relay (384k, 128k, 128k) WAN with 3 of those
> routers and 3 Adtran units.
>
> They've signed up for point-to-point T1 (w/ Eureka Broadband) and wants to
> switch their frame relay WAN to point-to-point T1 WAN.  I've reconfigured
> the serial interfaces accordingly (IP address and encapsulation ppp) and
> re-programmed the Adtran units for 24 channels, ESF, B8ZS and "Network" for
> clock source on both ends.  While Adtrans are re-booting, the other end
> flashes Error LED, but once up, all LED's are green.  However, ping'ing the
> other end just times out.
>
> With Cisco T1 DSU WIC's, point-to-point T1 setup is almost a no-brainer.
> But, with Adtran unit in the equation, I can't determine if it's the router
> config (which I doubt), or the Adtran unit, or the carrier setup (which I
> doubt also - they had tested and turned up the ckt and plugged hard loop
> back plug into the smart jacks).
>
> Any thoughts?
>
> TIA,
>
> Randall




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