From: marvin greenlee (marvin@ccbootcamp.com)
Date: Fri Mar 04 2005 - 21:36:47 GMT-3
Works fine for me. Watch the word wrap. You can also drop the title into
the search box on Cisco's main page.
http://www.cisco.com/pcgi-bin/search/search.pl?searchPhrase=Why+OSPF+Demand+
Circuit+Keeps+Bringing+Up+the+Link&nv=Search+All+cisco.com%23%23cisco.com&nv
=Technical+Support+%26+documentation%23%23cisco.com%23TSD&language=en&countr
y=US&accessLevel=Guest&siteToSearch=cisco.com&x=1&y=10
Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Moin, Imran
Sent: Friday, March 04, 2005 4:25 PM
To: Georg Pauwen; benlai_cn@hotmail.com; ccielab@groupstudy.com
Subject: RE: Using Dialer Profile as OSPF Demand-circuit [bcc][faked-from]
Importance: Low
Georg,
That CCO link doesnt work. Do you have a saved PDF copy of this document?
Thanks,
Imran.
-----Original Message-----
From: Georg Pauwen [mailto:pauwen@hotmail.com]
Sent: Sunday, December 19, 2004 2:27 AM
To: benlai_cn@hotmail.com; ccielab@groupstudy.com
Subject: RE: Using Dialer Profile as OSPF Demand-circuit
Hello,
the problem with OSPF and multilink is that when one of the links in the
multilink bundle goes down, OSPF recalculates the cost of the link and runs
the SPF algorithm, causing a topology change and hence the demand circuit to
come up. You need to manually set the cost on your dialer interfaces, e.g.
ip ospf cost 10.
You might want to check this document, it explains this phenomenon (reason
6):
Why OSPF Demand Circuit Keeps Bringing Up the Link
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009481b
.shtml
Regards,
Georg
>From: "Lai, Ben" <benlai_cn@hotmail.com>
>Reply-To: "Lai, Ben" <benlai_cn@hotmail.com>
>To: <ccielab@groupstudy.com>
>Subject: Using Dialer Profile as OSPF Demand-circuit
>Date: Sun, 19 Dec 2004 08:49:10 +0800
>
>Hi all,
>
>Here's a problem I met when using ISDN Dialer Profile for OSPF
>demand-circuit, It was:
>
>There are two router running OSPF with a serial interface and a BRI
>interface. Running AREA 0 between Serials and a virtual link area between
>BRIs, When I using the Phycisal BRI interface with the Demand-circuit
>function, It works well, But when I use the Dialer profile with the PPP
>Multilink, the ISDN link keeps up and down. I debug ip ospf hello, there's
>no hello packet pass the Dialer OR BRI interface, but the dial reason is
>"s="my ip add, d=224.0.0.5". Anybody could tell me why?
>
>
>
>Thanks
>
>
>
>Ben
>
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