RE: Redistribution into OSPF - Type 2

This Might help you Binoy

http://ccieat21.wordpress.com/2009/03/12/ospf-forward-metric/

Zeeshan

> Date: Tue, 30 Jun 2009 21:26:57 +0100
> Subject: Re: Redistribution into OSPF - Type 2
> From: ccie19226_at_googlemail.com
> To: binoy_uday_at_yahoo.fr
> CC: ccielab_at_groupstudy.com
>
> RFC2328 - Section 16.4.6
>
> (d) If the new AS external path is still indistinguishable
> from the current paths in the N's routing table entry,
> select the preferred path based on a least cost
> comparison. Type 1 external paths are compared by
> looking at the sum of the distance to the forwarding
> address and the advertised type 1 metric (X+Y). Type 2
> external paths advertising equal type 2 metrics are
> compared by looking at the distance to the forwarding
> addresses.
>
> Just keep in mind this little nugget though...
>
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080124c7d.
shtml
>
> Cheers.
>
>
> On Tue, Jun 30, 2009 at 8:42 PM, Binoy Udayabhanu <binoy_uday_at_yahoo.fr>
wrote:
> >
> > Hi experts,
> >
> > One doubt regarding redistribution in OSPF. When two OSPF ASBR's send in
the
> > same route into an OSPF domain, which will be preferred, especially when
it is
> > E2 route.
> >
> > Also, if the case is that the ASBR's are in two different areas of the
same
> > OSPF domain, is it going to cause any difference.
> >
> > Do the router-id of the ASBR's has any part in selecting them.
> >
> > Thanks in advance,
> > Binoy
> >
> >
> >
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Received on Wed Jul 01 2009 - 11:18:38 ART