You can start the troubleshooting from the Physical layer onwards. Ensure
you use the
correct cables - crossover cable instead of back to back.
Then if that if fine, then check the datalink connections.
Then go higher up the stack, to see if you need to add anything in the
configuration.
If you are using T1 card and u want to use only 56k out of it, you might be
in need of
this configuration :
config t
controller T1 0/0
channel-group 0 timeslots 1
no shut
something like that.
let us know the outcome.
rajesh
CiscoG wrote:
> Even if you accidentally configured the DTE with the Clock Rate command
> instead of the DCE, or for that matter entered No Clock Rate command at
all,
> I don't think you would see Serial0/0 down, down. It almost sounds like
your
> using the wrong cables???
>
> -----Original Message-----
> From: Ravi Varma [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 11, 2001 5:31 PM
> To: [EMAIL PROTECTED]
> Subject: URGENT !!!!!!!!!!!!!!!!!!!!! [7:8061]
>
> Hi Guys
>
> We have 10 3640 Routers at our place
> the probelm i am facing is that i have to connec all these ten routers back
> to
> back each router have 2 FE and one T1 (dsu/csu)
>
> When i tried to connect then back to back through the serial line
> using show int
>
> Serial 0/0 down and line protocol DOWn
>
> i had assigned Ip address
> assigned the clock rate 64000
> no shut
> and default encapsultaion (hdlc)
>
> and other i had gone through the same procedure but not assigned the clock
> rate
>
> can u please help me on that it i have to get it up by evening
>
> Thanking you guys in advance
>
> Regards,
>
> Ravi Varma
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