The line protocol down means that the other end are not sending keepalives .
So yes its datalink (correct me if I am wrong ).
If you are using back to back is there clocking on your dce side ( do a show
control serial 0 )
look for dce .
If not check that your NTU (clocking device is plugged in)
See that your addressing is correct on both sides .
So in short you should have a dce---dte scene
and there should be clocking on the dce side.
and make sure your addressing is ok !
Hope it helps !
Cheers
Olden
-----Original Message-----
From: Omer Shommo [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 23, 2000 8:00 AM
To: Cisco Group Study
Subject: Serial0 is up, line protocol is down!
Hello to All,
If Serial0 is up, line protocol is down, then what should I check? Give me
as many answers as you can.
BTW what is the line protocol? is it a network protocol like ip, ipx? or is
it the data link layer protocol?
Omer
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