----- Original Message -----
From: "CCNP"
To:
Sent: Thursday, May 17, 2001 11:19 AM
Subject: Re: Loopback interface for OSPF [7:4802]
> Brad is very correct on the use of Loopback interface in OSPF.
>
> 1. Loopback interface is more stable than any other physical interface.
> Catch here is OSPF will continue to use a RID learned from a physical
> interface even if the interface subsequently fails. So nothing great about
> this advantage.
>
> 2. Admin's can assign RID in a more controlled way because RID's can
belong
> to same network/subnet across the entire OSPF domain. This is the main
> advantage of using Loopback interface in OSPF.
>
> Brijesh
>
> ----- Original Message -----
> From: "Brad McConnell"
> To:
> Sent: Thursday, May 17, 2001 10:50 AM
> Subject: Re: Loopback interface for OSPF [7:4802]
>
>
> > There's not much point in putting the loopbacks in their own area unless
> > you're in a lab scenario and trying to make a bigger, more complicated
> > network. ..At least not that I can think of. However, there is
> definitely
> > a usefulness for loopback interfaces in OSPF -- use them to set your
RIDs
> > (used to indentify the router in OSPF LSA's) to controllable,
meaningfull
> > addresses. This doesn't even require that the loopbacks be part of the
> OSPF
> > domain, just that they be configured and up. Highest loopback IP on the
> > router will be the OSPF RID of any LSA's generated by that router (as
> shown
> > in commands such as show ip ospf neighbor, etc)...
> >
> > -Brad McConnell
> >
> > ""Vincent Chong"" wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > Hi;
> > >
> > > For OSPF implementation, an area can be configured in the
Loopback
> > > interface.
> > > But what purpose, when should I do it?
> > >
> > > TIA
> > > Vincent Chong
> > > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
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