BGP On Host
rduvall at onlinehighways.net
Tue Mar 30 11:47:25 PST 2004
Kind of, except both machines are on 2 different ISP, in different states.
At ApacheCon, I described how I have a server in Oregon and a server in
Florida, and I have a monitoring program that does a dynamic DNS update when
one of the hosts goes down. The individual described that what they are
doing is something to do with BGP, in which they have multiple servers in
different countries, all with the same IP address. Traffic is routed to the
nearest logical server, until one goes down, then the traffic is routed to
the nearest logical server that is still up. That is what I am wanting.
Since I didn't get the person's contact information, I am trying to figure
out how to do it myself.
----- Original Message -----
From: "Marc G. Fournier" <scrappy at hub.org>
To: "Rick Duvall" <rduvall at onlinehighways.net>
Cc: <jan.muenther at nruns.com>; <freebsd-questions at freebsd.org>
Sent: Tuesday, March 30, 2004 11:43 AM
Subject: Re: BGP On Host
> sounds like you are describing a load balancing switch ... two seperate
> boxes behind the switch, with a single "public" IP in front that sends a
> heartbeat to the boxes behind it ...
> On Tue, 30 Mar 2004, Rick Duvall wrote:
> > I wasn't sure if it was BGP or if it was something else. Definetly
> > routers would be using BGP. But, I heard at an apache conference
> > was doing something where the machine would send a keepalive to the
> > connected Cisco router, and if the router didn't receive the keepalive
> > signal, BGP would re-route the traffic to the other host. Both hosts
> > different ISP, but have the same IP address. Traffic is routed from the
> > requester to the closest logical server. I think UltraDNS does this
> > their DNS servers as well.
> > Anyway, I don't know what the host uses to send the keepalive to the
> > router, or even how to configure the BGP to make it work. I was
> > if somebody on the list has set up the same configuration on a couple of
> > fault tolerant FreeBSD boxes.
> > Sincerely,
> > Rick Duvall
> > ----- Original Message -----
> > From: <jan.muenther at nruns.com>
> > To: "Rick Duvall" <rduvall at onlinehighways.net>
> > Cc: <freebsd-questions at freebsd.org>
> > Sent: Tuesday, March 30, 2004 11:26 AM
> > Subject: Re: BGP On Host
> > > > (mirrored). If both hosts are up, the traffic is routed to the
> > > > server to the person making the request. Otherwise, if one server
> > down,
> > > > traffic is automatically re-routed to the other box.
> > >
> > > That is not what BGP is made for. It's an exterior routing protocol
> > > routes between AS.
> > >
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> Marc G. Fournier Hub.Org Networking Services
> Email: scrappy at hub.org Yahoo!: yscrappy ICQ:
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