It used to be clusterized for NSC, but I'm not sure how useful it would
be for OpenSSI. The primary use for it would be to connect to some port
on "lo" and be automatically routed to the node where that server is
listening. OpenSSI introduces the notion of multiple servers running in
parallel across the cluster (I don't think NSC had this), which makes a
clusterized "lo" ambiguous. If an Apache server is running on each node
and you connect to port 80 on "lo", which server should you connect to?
It might be useful to make CVIP work in this manner. I think OpenSSI
only allows one server in the cluster to listen on a given port of the
CVIP address. Therefore, any process can connect to this port of the
CVIP and be automatically routed to this one server. It sounds
reasonable in theory, but I don't think it's been implemented.