[cisco-voip] Avoid Clocking issues with PRI

[Jason Aarons (AM)]

This doesn't work when you have PRIs from different providers.

The original VWIC2 has a single PLL and backplane could not clock from multiple sources.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Roger Wiklund
Sent: Tuesday, October 16, 2012 4:40 PM
To: Steven Sarte
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Avoid Clocking issues with PRI



Dunno about the NM, I just use network-clock-select 1 e1 x/y/z and
ensure you have clock source line. That's enough to keep it slips
free.

Regards
Roger

On Tue, Oct 16, 2012 at 10:28 PM, Steven Sarte <steven.sarte at gmail.com<mailto:steven.sarte at gmail.com>> wrote:
> I have two SP's for my PRI's on a 2921 currenty using a
> VWIC3-4MFT-T1/E1. I opened a Cisco Partner case and they told me you
> can avoid timing slips by using a Network Module PRI, like a
> NM-HDV2-T1/E1 and a VWIC3-4MFT-T1/E1 in the WIC slots.
>
> Has anyone configured this before? What would the clocking
> configuration look like. I did open a Cisco TAC case but he was not
> very helpful in his first reply.
>
> Thanks in advance,
> Steven
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