[c-nsp] 2821 VWIC2-2MFT-T1/E1 clocking issue

[Church, Charles]

Jay,

	That was a limitation of the old VWIC-2MFT module.  The new one
adds 'independent' as an option after 'clock source line'.  I think
that'll fix it.

Chuck

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jay Hennigan
Sent: Wednesday, April 30, 2008 2:48 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 2821 VWIC2-2MFT-T1/E1 clocking issue


Scenario:

Cisco 2821 router running 12.4(18)
VWIC2-2MFT-T1/E1    terminating E-1 connections from two ISPs.

Both are configured clock source line.

Both providers are sourcing clock, but apparently not in sync with each 
other.

Second E-1 on the WIC shows slips.  It appears that "clock source line" 
doesn't do what it should, or somehow the first E-1 is clocking both 
circuits.  Physically disconnecting the first E-1 fixes the slips on the

second.

Bug?  Misconfiguration?  Hardware limitation?

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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