Hi Patrick,
I'm not familiar with hearbeat so I can't help you.
But if you want HA-connectivity and you have 2 or more switches it can be interesting for you to read about the bonding-driver (linux-kernel i.e. /usr/src/linux-2.6.11-gentoo-r6/Documentation/networking/bonding.txt). With that you can build active-backup and/or channel-bonding.
Sascha. -- gentoo-user@gentoo.org mailing list
