Wouldn't you still like the route to D to be available through C if the link
between B and D goes down, or if router B goes down? A distribution list
would stop that.
--
James Haynes
Network Architect
Cendant IT
A+,MCSE,CCNA,CCDA,CCNP,CCDP
""David Chandler"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Have you tried an inboud distribution list on Router A's area 1
> interfaces. If router A doesn't learn the Router D routes thru those
> interfaces it should then use Area 0.
>
>
> Worth a try.
>
> DaveC
>
> Kevin Schwantz wrote:
> >
> > Thanks for the recommendations. Firstly, let me explain why I need the
> > routing to behave in such a way. The reasons are purely geographical and
I
> > want to reduce latency. Routers A and B are in London and connected back
to
> > back via FastEth. Routers C and D are in and SanJose and NewYork
> > respectively(Connected to both London routers via FR).
> > I certaintly won't want traffic originating from RouterA ( London )
> destined
> > for RouterD (NewYork) to have to go to SanJose first. It would be much
> > better if the hop is A-B-D instead of A-C-D.
> >
> > Schwantz
> >
> > ""EA Louie"" wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > ... or route-map the router D network(s) to go through Router B at
Router
> > A
> > >
> > >
> > > ----- Original Message -----
> > > From: "Chris Larson"
> > > To:
> > > Sent: Tuesday, May 29, 2001 7:24 AM
> > > Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
> > >
> > >
> > > > Place a summary route to null 0 for the networks on Router D on your
> > OSPF
> > > > routers and set the metrics appropriately for the summary route
> > > >
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf
Of
> > > > Kevin Schwantz
> > > > Sent: Tuesday, May 29, 2001 10:03 AM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> > > >
> > > >
> > > > routerA routerB
> > > > AREA0--------AREA0
> > > > | |
> > > > routerC routerD
> > > > AREA1---------AREA1
> > > >
> > > >
> > > > Since we are on the topic of OSPF, could someone help me out on the
> > > scenario
> > > > above?
> > > >
> > > > Routers A and B have interfaces in Area 0 and Area1. I want traffic
> > from
> > > > routerA destined for routerD to go via router B. This is not the
case
> in
> > > my
> > > > network because I realise that routerA prefers Intra-Area routes
and
> > thus
> > > > would route traffic to routerD via routerC.
> > > > What tweaks must I make in order to force the traffic from routerA
to
> > > > routerD to go via routerB ? Someone suggested building a GRE tunnel
> > > between
> > > > routerA and routerB and then configure the tunnel to be in AREA1.
> > > >
> > > > Any suggestions?
> > > >
> > > > Kevin
> > > >
> > > >
> > > > ""W. Alan Robertson"" wrote in message
> > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > > > Guys,
> > > > >
> > > > > The actual traffic will not be routed up to area 0... Area 0 has
> been
> > > > > extended
> > > > > down to R2, so R2 is now a backbone router. R2 has interfaces in
3
> > > areas
> > > > > now:
> > > > > Area1, Area2, and Area0 by means of it's virtual link.
> > > > >
> > > > > Any traffic originating in Area2 destined for Area1 will be routed
> > > > directly
> > > > > by
> > > > > R2. This satisfies the "Interarea traffic must traverse the
> backbone"
> > > > rule,
> > > > > because R2 *is* a backbone router.
> > > > >
> > > > > This is not theory... It is fact.
> > > > >
> > > > > Alan
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Andrew Larkins"
> > > > > To:
> > > > > Sent: Monday, May 28, 2001 10:13 AM
> > > > > Subject: RE: Wanna Be a CCIE? Try This One [7:6076]
> > > > >
> > > > >
> > > > > > agreed....to area 0 then on to the intended area
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Circusnuts [mailto:[EMAIL PROTECTED]]
> > > > > > Sent: 28 May 2001 15:50
> > > > > > To: [EMAIL PROTECTED]
> > > > > > Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> > > > > >
> > > > > >
> > > > > > Chuck- my answer is Yes. The traffic from the Virtual Linked
> > > psuedo-ABR
> > > > > > passes back to Area 0, before it's sent onto the intended Area
> (even
> > > if
> > > > > it's
> > > > > > directly connected).
> > > > > >
> > > > > > Phil
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: Chuck Larrieu
> > > > > > To:
> > > > > > Sent: Sunday, May 27, 2001 8:59 PM
> > > > > > Subject: Wanna Be a CCIE? Try This One [7:6076]
> > > > > >
> > > > > >
> > > > > > > Ever wonder what the CCIE candidates talk about on the CCIE
list?
> > > > > > >
> > > > > > > The following message came through today. I thought the bright
> > folks
> > > > on
> > > > > > this
> > > > > > > list might be curious, and might want to venture an answer.
> > > > > > >
> > > > > > > Begin original question:
> > > > > > >
> > > > > > > Guys,
> > > > > > >
> > > > > > > I wonder if there is anybody who remembers the discussion on
> > Virtual
> > > > > > > Links in OSPF. It was posted some time ago but I can't seem to
> > find
> > > > it.
> > > > > > >
> > > > > > > The scenario was something like this:
> > > > > > > ________ _______ _______
> > > > > > > |Area 0 | |Area1| |Area2|
> > > > > > > | R0 |--| R1 |--| R2 |
> > > > > > > |______| |_____| |_____|
> > > > > > >
> > > > > > > There is a virtual link from area 2 to Area 0 via Area1.
Traffic
> > > needs
> > > > to
> > > > > > > get to R1 in Area 1 from R2 in Area 2. Assume that the virtual
> > link
> > > > has
> > > > > to
> > > > > > > use R1 (To create the V.Link). Does the traffic flow passed R1
> (in
> > > > Area
> > > > > 1)
> > > > > > > to Area 0 and then back to area 1, or does the actual flow
just
> to
> > > R1
> > > > > from
> > > > > > > R2.
> > > > > > >
> > > > > > > I cant remember the conclusion, and I cant seem to find it on
the
> > > > > > archives.
> > > > > > > Quite interesting issues.
> > > > > > >
> > > > > > > End of original question
> > > > > > >
> > > > > > >
> > > > > > > Chuck
> > > > > > >
> > > > > > > One IOS to forward them all.
> > > > > > > One IOS to find them.
> > > > > > > One IOS to summarize them all
> > > > > > > And in the routing table bind them.
> > > > > > >
> > > > > > > -JRR Chambers-
> > > > > > > FAQ, list archives, and subscription info:
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> > > [EMAIL PROTECTED]
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[EMAIL PROTECTED]
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> > > > Report misconduct and Nondisclosure violations to
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> > FAQ, list archives, and subscription info:
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