From: RSiddappa@xxxxxxxxxx
Date: Fri Feb 15 2002 - 05:13:22 GMT-3
The property of Demand circuit is to come up when therre is change in the
toplogy table or u r routing table. That si the reason it brings up the ISDN
when the /32 route disappears from the rotuign table.
-----Original Message-----
From: michael robertson [mailto:michael_w_2ca@yahoo.ca]
Sent: Thursday, February 14, 2002 10:04 PM
To: ccielab@groupstudy.com
Subject: ISDN demand circuit question: link always up why?
Hi, Group,
Can somebody explain to me the following link
http://www.cisco.com/warp/customer/104/dcprob.html
Reason 4:
When the link goes down the /32 disappearspears and
OSPF understands this as a change in topology. The
demand circuit brings the link up again to propagate
the MAXAGE version of the /32 mask to its neighbor.
I understand that ppp will install a /32 host in R1, (
even though I don't know why here). but wy the demand
circuit has to bring up the link to propogate teh
MAXAGE version of /32 mask to its neighbot.
So why one solution can be that you use different
major net at the different R1 ( rip router) interface
as always, any help will be greatly appreciated
thanks
Michael
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