Re: Question: ip ospf network point-to-multipoint vs

If you are doing mpls in a hub n spoke frame setup it usually is needed
------Original Message------
From: Justin Mitchell
To: jastorino_at_ipexpert.com
Cc: CCIE Groupstudy
Subject: Re: Question: ip ospf network point-to-multipoint vs point-to-point
Sent: Oct 18, 2009 3:02 PM

Didn't think about the timer difference...

What if there is no requirement for a specific timer? As long as the
interface type is the same on each side the adjacency forms without an
issue though.

Is there an advantage to advertising the /32 route?

Justin G. Mitchell
http://www.google.com/profiles/jgmitchell

On Sun, Oct 18, 2009 at 1:56 PM, Joe Astorino <jastorino_at_ipexpert.com> wrote:
> Timers are different as well
> ------Original Message------
> From: Justin Mitchell
> Sender: nobody_at_groupstudy.com
> To: CCIE Groupstudy
> ReplyTo: Justin Mitchell
> Subject: Question: ip ospf network point-to-multipoint vs point-to-point
> Sent: Oct 18, 2009 2:44 PM
>
> What is the real difference between these two commands during configuration?
>
> I know ip ospf network point-to-multipoint sends to a multicast
> address but includes a /32 route while the point-to-point just sends
> to a multicast address.
>
> The lab I am working shows the configuration using
> point-to-multipoint. The requirements for the question were
> * no DRs in the area consisting of vlan 20 and 50
> * Unicast packets on vlan 20
> * Mulitcast packets on vlan 50
>
> I understand the reasoning for using ip ospf network
> point-to-multipoint non-broadcast on the one link, but not ip ospf
> network point-to-multipoint when point-to-point will accomplish the
> desired result.
>
> Justin G. Mitchell
> http://www.google.com/profiles/jgmitchell
>
>
> Blogs and organic groups at http://www.ccie.net
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> Joe Astorino - CCIE #24347 R&S
> Technical Instructor - IPexpert, Inc.
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Regards,

Joe Astorino - CCIE #24347 R&S
Technical Instructor - IPexpert, Inc.
Cell: +1.586.212.6107
Fax: +1.810.454.0130
Mailto: jastorino_at_ipexpert.com

Blogs and organic groups at http://www.ccie.net
Received on Sun Oct 18 2009 - 19:11:39 ART