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

[Jay Hennigan]

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