From: K. Radecki (kradecki@xxxxxxxxx)
Date: Sat May 05 2001 - 22:41:08 GMT-3
I've copmlete lab 8, but still have an issue with
Section 2 Task 3 Part 1. It states "...The ISDN
connection should only come up if the ethernet
connectivity is broken..."
I have the IDSN link configured as an ospf-demand
circuit, so Hellos and periodic updates don't keep the
line active. Also, I've filtered IGRP from
redistributing OSPF-learned routes back into OSPF, so
there's no issue there. The problem I'm having is that
the line comes up as soon as the there's a topology
change in OSPF, ie I take down an interface in the
network that OSPF advertises, even if the ethernet
network is active.
Based on the way ospf demand-circuit works, that
doesn't surprise me. And, in a stable OSPF network,
the link never comes up. Does the task assume a stable
network? The way I read it, it doesn't. But, I don't
know how to keep the link from activating using just
demand-circuit. And, in the configuration they provide
as the solution, they only use ospf-demand circuit.
Thanks,
Kurt
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