T1 clock select

[lcaruso]

Hi,

I've been trying to solve an issue with CRCs and slips on a AT&T MPLS T1. Recently the telco told us they were supplying clock on the line and of course we wanted to make sure we were getting clock from the line so we attempted to add this command to have it get clock from the MPLS circuit

Router(config)#network-clock-select 1 T1 0/2/1
*** Controller T1 0/2/1 is NOT deriving Clock from Line

The same 2811 has a second AT&T IP Flex circuit so I tried that one and it works.

Router(config)#network-clock-select 1 T1 0/2/0  

Then it displays this

Router#sh run | in netw
network-clock-participate wic 2 
network-clock-select 1 T1 0/2/0

Router#sh netw
  Network Clock Configuration 
  --------------------------- 
  Priority      Clock Source    Clock State     Clock Type 
     1          T1 0/2/0        GOOD            T1          
    10          Backplane       GOOD            PLL         
  Current Primary Clock Source 
  --------------------------- 
  Priority      Clock Source    Clock State     Clock Type 
     1          T1 0/2/0        GOOD            T1          

I don't think this had had intended effect as serial 0/2/1 is still getting crcs and slips.

Is there some way to tell serial 0/2/1 to use clock from serial 0/2/0 or what is a good solution?

Thanks.

[paolo bevilacqua · Accepted solution]

controller x/y

clock source line independant