[c-nsp] C&W E1 in the UK

[Zahid Hassan]

Dear All,


What factors will determine the clock source on an unframed E1 circuit ?

I have several E1 circuits terminating on a Cisco Channelized STM-1
interface
acting as the PE router and a VWIC-1MFT-G703= card on the CE routers.

PE controller config:
---------------------
!
controller SONET 0/0/0
 framing sdh
 !
 au-4 1 tug-3 1
  tug-2 1 e1 1 unframed
  tug-2 1 e1 1 clock source internal
  tug-2 1 e1 2 unframed


CE controller config:
---------------------
!
controller E1 0/0
 channel-group 0 unframed
!


I seems to be getting odd circuit flaps and wondering if its
to do incorrect clock source configured on the controller.

Any suggestion or comment will be very appreciated.


Regards,


Zahid