ipvsadm is needed by the heartbeat package I have pulled into EPEL-5. I don't know how this would affect people using the RHEL cluster suite, but I think the only answer is to pull it into EPEL-5.
Is there an existing policy for this? Because one might indeed argue that a Red Hat package already exists...
Well, it's been discussed, but I don't know that we ever came to a policy. ;( I can re-open discussion on the epel-devel list I guess.
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
I think we can just drop this for now. Centos has the package, rhel has it in a cluster channel. The subpackage that needs it is no longer required by base heartbeat, so people could just remove that subpackage if they don't want to pull this in.