network-clock-select question - ISDN router- Help needed

Unanswered Question
Apr 29th, 2008

I have a router with slips with the following config.

network-clock-participate slot 1

network-clock-select 1 E1 1/0

However the two controller for T1 as :

controller E1 1/0

controller E1 1/0/0

Should the text also include the

network-clock-select 1 E1 1/0/0 - i.e match the controller set up?

Does any one have step by step guide to clocking

From what I understand if I`m reading it correct the commends

network-clock-participate slot 1

network-clock-select 1 E1 1/0

The network-clock-participate means that the slot is involved in clocking i.e needs to look for it and the network-clock-select 1 is that the clocking comes from this source ?

On the Serial you can then have line, external, line primary etc- Does this then tell the E1 1/0 where to look for the clock source?

What is the commend if you wish for the clock to be from the internal bus i.e the rouetr provides the clocking to a telephone system


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Paolo Bevilacqua Tue, 04/29/2008 - 08:01


it is strange that you cannot specify the controller correctly, that is E1 1/0/0.

Please send output of "show diag", "show controllers e1" and "show network-clocks".

iptuser55 Wed, 04/30/2008 - 00:48

Thanks for your reply

I added the commend xxxxxx E1 1/0/0 and it solved the problem


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