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 between
> routers would be using BGP.  But, I heard at an apache conference somebody
> was doing something where the machine would send a keepalive to the directly
> 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 are on
> different ISP, but have the same IP address.  Traffic is routed from the
> requester to the closest logical server.  I think UltraDNS does this with
> their DNS servers as well.
> Anyway, I don't know what the host uses to send the keepalive to the Cisco
> router, or even how to configure the BGP to make it work.  I was wondering
> if somebody on the list has set up the same configuration on a couple of
> fault tolerant FreeBSD boxes.
> Sincerely,
> Rick Duvall
> ----- Original Message -----
> To: "Rick Duvall" <[EMAIL PROTECTED]>
> 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 closes
> > > server to the person making the request.  Otherwise, if one server is
> down,
> > > traffic is automatically re-routed to the other box.
> >
> > That is not what BGP is made for. It's an exterior routing protocol for
> > routes between AS.
> >
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Marc G. Fournier           Hub.Org Networking Services (
Email: [EMAIL PROTECTED]           Yahoo!: yscrappy              ICQ: 7615664
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