From: Joe Jia (ellenjjl@xxxxxxxxxx)
Date: Fri Apr 19 2002 - 14:56:19 GMT-3
Yes, this is one way.
----- Original Message -----
From: "DAN DORTON" <DHSTS68@dhs.state.il.us>
To: <dwhitley@dynis.com>; <ccielab@groupstudy.com>;
<Yan-Hui.Liang@sprint-canada.com>
Sent: Friday, April 19, 2002 1:31 PM
Subject: RE: How to change route from O to IA in OSPF?
> You can use a virtual link to bring area 0 to the outside area as well to
change IA to O routes.
>
> >>> <dwhitley@dynis.com> 04/19/02 11:53AM >>>
> I haven't read the RFC in a while but generally preference only comes into
> play for equal cost routes. All cost being equal then the preference
order
> would decide which route to use. From the original post he only wanted to
> influence which route r2 was using. Changing the IA to O is a different
> issue. The O and IA aren't the relevant issue. The fact that by default
> the serial links in question both have the same bandwidth is the relevant
> point. If you want to change the IA to O, change the area that the
> interface is participating in.
>
> Dean
>
> -----Original Message-----
> From: Yan-Hui Liang [mailto:Yan-Hui.Liang@sprint-canada.com]
> Sent: Friday, April 19, 2002 12:29 PM
> To: Annu Roopa; kris.keen@aon.com.au; Joe Jia
> Cc: ccielab@groupstudy.com
> Subject: RE: How to change route from O to IA in OSPF?
>
>
> Q: How can I give preference to OSPF inter-area routes over intra-area
> routes?
>
> A. According to RFC, the order of preference for OSPF routes are as
follows:
>
>
> intra-area routes, O
> inter-area routes O IA
> external routes type 1, O E1
> external routes type 2, O E2
>
> -----Original Message-----
> From: Annu Roopa [mailto:annu_roopa@yahoo.com]
> Sent: Friday, April 19, 2002 11:51 AM
> To: kris.keen@aon.com.au; Joe Jia
> Cc: ccielab@groupstudy.com
> Subject: Re: How to change route from O to IA in OSPF?
>
>
> Joe,
>
> Was looking at ur diagram.By default OSPf will prefer
> the O path over IA path.If u change ur bandwidth on
> serial link to reflect the 64K which ur figure says,it
> should work.Does that sound correct ?
>
> Let us know.HTH.
> Annu
>
>
> --- kris.keen@aon.com.au wrote:
> > Joe,
> >
> > Do you have a route table handy? Hard to make out
> > from your diagram...
> >
> >
> -----------------------------------------------------------------
> > Kris Keen - CNE, CCNA, CCNP
> > Network Support Specialist - Network Systems
> > Aon Risk Services Australia Limited
> > (612) 9253 7272
> > 0404862970
> > E: Kris.Keen@aon.com.au
> >
> >
> >
> >
> >
> >
> >
> > "Joe Jia"
> >
> >
> > <ellenjjl@roge To:
> > <ccielab@groupstudy.com>
> >
> > rs.com> cc:
> >
> >
> > Sent by: bcc:
> >
> >
> > nobody@groupst Subject:
> > How to change route from O to IA in OSPF?
> >
> > udy.com
> >
> >
> >
> >
> >
> >
> >
> >
> > 19/04/2002
> >
> >
> > 12:55 PM
> >
> >
> > Please respond
> >
> >
> > to "Joe Jia"
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Hi,
> > how to change the path at R2 to R1's ethernet0 from
> > R2's serial0 to its
> > ethernet 0?
> > I have the case as following: R1,R2,R3 hub-spoke
> > topology. R1 has
> > ethernet0
> > and searial 0 at area 0
> > R2 has 64k serial0 and 10M ethernet interfaces, s0
> > in area0, ethernet0 in
> > area1
> > R3 has T1 serial0 and 10M ethernet interfaces, so in
> > area 0 , ethernet 0
> > with
> > R2's e0 in area 1
> >
> > I have the question, how can change R2's route to
> > R1's ethernet0 from R2's
> > serial0 to Ethernet0 because this way has a low
> > cost?
> >
> > O , IA, E1, E2?
> >
> > 128.10.1.0/24
> > ______(e0)
> > |
> > (area0)
> > R1
> > |
> > (s0) 172.16.1.5/24
> > (area0) / \ (area0)
> > 64k / \ T1
> > / \
> > (s0) (s0)
> > 172.16.1.6/24 | | 172.16.1.1/24
> > R2 R3
> > | (e0) | (e0)
> > (area1)|________| (area1)
> >
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