From: Peng Zheng (zpnist@xxxxxxxxx)
Date: Fri Aug 16 2002 - 15:17:01 GMT-3
I'm not sure. I only think about it. I'm wondering if
I miss something.
--- "Lupi, Guy" <Guy.Lupi@eurekaggn.com> wrote:
> This is true, but I would imagine if they asked you
> to do this in the lab,
> they would have to provide you with a way to
> accomplish it. Either they
> would allow you to run an IGP, you would be allowed
> to use statics, or you
> would be allowed to use multilink and peer using the
> directly connected
> interface addresses.
>
>
> -----Original Message-----
> From: Peng Zheng [mailto:zpnist@yahoo.com]
> Sent: Friday, August 16, 2002 1:45 PM
> To: Lupi, Guy; 'CCIE'; ccielab@groupstudy.com
> Subject: RE: EBGP Load Balance
>
>
> But if the routeis rewritten with the loopback
> address
> of the neighbor, how R1 and R2 can get each other.
> Because static route is not allowed in LAB.
> So, R1 has no idea how to get 2.2.2.0/24. Is IGP
> required to run on the links between AS100 and
> AS200?
> But Does it make sense to run IGP between ASs?
>
>
> --- "Lupi, Guy" <Guy.Lupi@eurekaggn.com> wrote:
> > Actually, the links will be redundant and load
> > balance, depending on how
> > your running your IGP/statics. If you are running
> > eBGP, then the next hop
> > of the route will be rewritten with the loopback
> > address of the neighbor
> > that announces it. If there is more than one
> route
> > for the next hop (the
> > loopback in this case) the router will load share
> > per packet or per
> > destination, depending on whether you are running
> > CEF or fast switching.
> > This a very common setup for customers of ISPs
> that
> > have 2 T1s to the same
> > provider router and want to load share accross
> them.
> > You could also do multilink ppp.
> >
> > -----Original Message-----
> > From: CCIE [mailto:o_daramola@hotmail.com]
> > Sent: Friday, August 16, 2002 12:39 AM
> > To: Peng Zheng; ccielab@groupstudy.com
> > Subject: Re: EBGP Load Balance
> >
> >
> > ok I guess i didn't understand you. Bgp
> establishes
> > its peer relationships
> > using tcp. You will need an existing igp (or
> static
> > routes) to be able to
> > use the lo0 interface as the bgp peer. Once that
> is
> > done, only one bgp route
> > will be injected into the routing table and your
> two
> > links will be redundant
> > but not load balanced. The maximum-paths command
> > allows bgp to inject two
> > equal cost routes into the routing table.
> >
> > Yinka
> >
> > ----- Original Message -----
> > From: "Peng Zheng" <zpnist@yahoo.com>
> > To: "Hotmail" <o_daramola@hotmail.com>;
> > <ccielab@groupstudy.com>
> > Sent: Friday, August 16, 2002 9:05 AM
> > Subject: Re: EBGP Load Balance
> >
> >
> > > I have no equipments to test. But I think R1
> and
> > R2
> > > must have the route to lo0 of other end.
> > >
> > >
> > > --- Hotmail <o_daramola@hotmail.com> wrote:
> > > > try maximum-paths 2
> > > >
> > > > Yinka
> > > > ----- Original Message -----
> > > > From: "Peng Zheng" <zpnist@yahoo.com>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Thursday, August 15, 2002 9:47 AM
> > > > Subject: EBGP Load Balance
> > > >
> > > >
> > > > > Hi,
> > > > >
> > > > > I have this config.
> > > > >
> > > > > R1 in AS 100.
> > > > > R2 in AS 200.
> > > > >
> > > > > There are two serial links between them.
> > > > > One on 192.168.1.0/30
> > > > > One on 192.168.2.0/30
> > > > >
> > > > > I want to do load balance on these two
> links.
> > R1
> > > > has
> > > > > Lo0 with 1.1.1.0/24. R2 has Lo0 with
> > 2.2.2.0/24.
> > > > >
> > > > > I know I need to add ebgp-multi and
> > update-source
> > > > > under BGP config.
> > > > >
> > > > > But I need to config the routes to let R1
> and
> > R2
> > > > know
> > > > > how to get each other.
> > > > >
> > > > > I found config with static route like:
> > > > >
> > > > > on R1:
> > > > >
> > > > > ip route 2.2.2.0 255.255.255.0 192.168.1.2
> > > > > ip route 2.2.2.0 255.255.255.0 192.168.2.2
> > > > >
> > > > >
> > > > > But for LAB, static routes are not allowed.
> > How
> > > > can I
> > > > > implement this config without static route?
> > > > >
> > > > >
> > > > > Thank you for help.
> > > > >
> > > > > Best Wishes,
> > > > > Peng Zheng
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:27 GMT-3