----- Original Message ----- 
From: "Claudio Jeker" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, August 08, 2005 11:17 AM
Subject: Re: bgpd and two CARPed routers

Hi,

I could do with a sanity check in regards to a similar scenario.

We have two providers, each providing us two diverse feeds. These come into
our IX network and subsequently two OpenBGPD routers, each of which have
two(*) NIC's. Obviously one of the NIC's goes to the IX switches and one to
the internal switches.

I'm optimistically assuming that this setup is sufficient to run all four
sessions off both routers, with one router acting as standby care of CARP
and IBGP happening over the NIC's fixed addresses on the IX network. Have I
overlooked any glaring technical obstacles here?

If not yet, what is the best/correct way to provide connectivity to all four
peers - multiple CARP devices with the same carpdev, or one CARP device with
multiple aliases? I'd imagine that a CARP device for each session/peer and
then the relevant 'depend-on' statement for each BGP neighbor would be most
flexible.

Any advice would be appreciated.
Thanks in advance,


(* well, actually there are four NIC's in each and I'm hopeful of the
trunk/carp compat issue being fixed to make use of them all)

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