Yep, you are correct.  Since the keepalive on a serial interface is actually
sent onto the line (versus Ethernet interfaces for which it is sent to the
internal circuitry) the line will go down.  I think the state you will see
in the "show int" will be "down, down."

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Steven A Ridder
Sent: Thursday, February 28, 2002 3:34 PM
To: [EMAIL PROTECTED]
Subject: v.35 connected to external csu [7:36845]


I'm almost 100% sure in my head, but I need to make sure of this.  I don't
have any CSU's to test this on.

If I have a router that connects to an external CSU/DSU and the far side of
the CSU goes down (the side that connect to a smartjack or even further
upstream), the router will know the link is down because it isn't receiving
any keepalives from it's gateway, right?  The voltage along the local V.35
cable won't keep the router up right?

--
RFC 1149 Compliant




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