It could alos be a carrier problem. The way to tell is to loopback your DSU
use HDLC or PPP encaps on the interface and ping it. Clear couters before
you do this. Do it on both ends, and look for errors etc. If you get good
replies on both ends w/o errors the problem is probably not yours (as long
as the config on both ends is correct) but the Telc's. This proves good and
reliable connectivity between you and you DSU on both ends.
-----Original Message-----
From: Joe Quezada [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 28, 2000 10:13 AM
To: 'Omer Shommo'; 'Cisco Group Study'
Subject: RE: Serial0 is up, line protocol is down!
Just remember that "Serial0 is up" refers to Layer 1 and "Line Protocol is
down" refers to Layer 2.
Joe
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Omer
Shommo
Sent: Friday, June 23, 2000 6:00 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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