From: Peng Zheng (zpnist@yahoo.com)
Date: Tue Aug 19 2003 - 12:32:13 GMT-3
But that's requirement. I think you can change
distance to implement this. But I'm wondering if it's
necessary to disable synchronization on r1 and r2.
--- jmsherry <jmsherry@hotmail.com> wrote:
> Do you mean to make those two routes appear as
> bgp-learned routes in
> routing table?
>
> I don't think this can be achieved. Any other taker?
>
>
> Paul
>
>
========================================================
>
> For the two loopback address, they can not be
> synchronized. I'm asked to keep this two as BGP
> routes on all BGP routers.
>
> Is it possible to enable syncronization on r2 and r1
> and make them synchronized?
>
> Thanks.
>
>
> --- pauldongso <pauldongso@hotmail.com> wrote:
> > Can you pls specify the peering relationship
> first?
> > If r5 peer with r3
> > and r2, there won't be any loop. If r5 peers with
> r3
> > only, there will
> > loop. Then use backdoor command in r5 for prefix
> > learned from as20, in
> > that case, r5 will choose the path learned from
> ospf
> > via r2 instead of
> > the path learned from bgp via r3.
> >
> > Is this the answer you are after?
> >
> > Paul
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com
> > [mailto:nobody@groupstudy.com] On Behalf Of
> > Peng Zheng
> > Sent: Tuesday, 19 August 2003 1:37 AM
> > To: default@connect.com.au; ccielab@groupstudy.com
> > Subject: RE: BGP question
> >
> >
> > Yes. I think so. But there is a route loop for
> > routes
> > from AS 20.
> >
> > R5 goes to R3 and R3 goes to R5.
> >
> > --- pauldongso <pauldongso@hotmail.com> wrote:
> > > Hi Peng
> > >
> > > As the question is not that clear, I can only
> make
> > a
> > > guess.
> > >
> > > Since r4 is not part of the bgp, any bgp prefix
> > > needs to be
> > > redistributed to ospf to make r4 aware of their
> > > existence before full
> > > reachability is achieved.
> > >
> > >
> > > Paul
> > >
> > >
> =================================================
> > >
> > > Topology as:
> > >
> > > R3
> > > |
> > > R4
> > > |
> > > R5-----R2---R1
> > > | |
> > > R6 (AS 20)
> > >
> > > OSPF run among them.
> > >
> > > Now R1, R2, R3 in AS 1, R2 as Route Reflector.
> > > Without
> > > BGP on R4. R5 in AS 2.
> > >
> > > Reqiurement:
> > >
> > > R3 and R6 propagate their lo 1 into BGP,
> > > They are 199.100.1.0 and 199.101.1.0
> > >
> > >
> > > 1. routes from AS 20 needed to be reachable from
> > all
> > > BGP routers.
> > >
> > > 2. routes for lo 1 of R3 and R6 should be
> > reachable
> > > from any routers runing BGP.
> > >
> > > 3. propagate only one route into AS 2 for lo 1
> of
> > R3
> > > and R6.
> > >
> > > 4. routes from AS 20 should be appeared as BGP
> > > routes
> > > on all BGP routers.
> > >
> > > How to satisfy all these at the same time?
> > >
> > >
> > >
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> >
>
This archive was generated by hypermail 2.1.4 : Tue Sep 02 2003 - 18:54:03 GMT-3