From: Nnanna Obuba (obuba@xxxxxxxxx)
Date: Mon Jan 29 2001 - 16:45:57 GMT-3
According to this paper, ospf is supported too
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_c/d
cdbakdw.htm
--- Wade Edwards <wade.edwards@powerupnetworks.com> wrote:
> As I recall dialer watches work only with IGRP and EIGRP. If you
> need OSPF
> then the demand circuit is the best way to go.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
> Of
> Jeremy Gray
> Sent: Sunday, January 28, 2001 2:34 PM
> To: ccielab@groupstudy.com
> Subject: RE: ISDN Backup without the backup interface command?
>
>
>
> A demand circuit is useful if you really msut run OSPF over an ISDN
> line.
>
> A better answer to this problem is to use a dialer watch-list, a
> very cool
> facility used to trigger DDR when a 'watched' route is absent in the
> routing
> table.
>
> This is great for a number of reasons.
>
> 1) Packet switched networks are not the best at telling a DTE when
> there's a
> problem in the cloud. Examples being ATM and FR
> Interface may stay up/up even if the remote is down.
>
> 2) You can place a DDR in a place further into your network rather
> than on
> the same router as a critical link and still have DDR work when the
> link
> fails if the routes being watches originate beyound the point of
> failure.
>
> Regards,
>
> Jeremy.
>
> PS: Joined today. Lab date March 8th.
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
> Of
> Robert DeVito
> Sent: 28 January 2001 16:39
> To: obuba@bellatlantic.net; mac38456@pegasus.cc.ucf.edu;
> ccielab@groupstudy.com
> Subject: Re: ISDN Backup without the backup interface command?
>
>
>
>
> Another thing to keep in mind is that ospf demand circuit will cause
> the
> isdn circuit to come up when there is a topology change.. So don't
> be
> shocked when it comes up every once and awhile.
>
> Robert
>
> ----Original Message Follows----
> From: "Nnanna Obuba" <obuba@bellatlantic.net>
> Reply-To: "Nnanna Obuba" <obuba@bellatlantic.net>
> To: "Miguel A. Ciena" <mac38456@pegasus.cc.ucf.edu>,
> <ccielab@groupstudy.com>
> Subject: Re: ISDN Backup without the backup interface command?
> Date: Sun, 28 Jan 2001 10:10:43 -0500
>
> That's no trick, use ospf demand circuit
>
>
> Nnanna Obuba, CCIE # 6586
> www.nantech.com
> Online lab for CCIE Preparation
> ----- Original Message -----
> From: "Miguel A. Ciena" <mac38456@pegasus.cc.ucf.edu>
> To: <ccielab@groupstudy.com>
> Sent: Sunday, January 28, 2001 9:07 AM
> Subject: ISDN Backup without the backup interface command?
>
>
> > Between R3 and R5 I got a ISDN link. I want to configure my ISDN
> to =
> > back-up my frame relay connection between R3 and R5...Here is the
> Trick:
> =
> > Without using Floating Static and without using the Back-up
> interface =
> > command..My Frame and ISDN are in OSPF area 0...
> >
> > any ideas..
> >
> >
> >
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:27:47 GMT-3