ipvsadm is used to setup, maintain, and inspect the virtual server
table in the Linux kernel. The Linux Virtual Server can be used to
build scalable network services based on a cluster of two or more
nodes. The active node of the cluster redirects service requests to a
collection of server hosts that will actually perform the
services. Supported Features include:
- two transport layer (layer-4) protocols (TCP and UDP)
- three packet-forwarding methods (NAT, tunneling, and direct routing)
- eight load balancing algorithms (round robin, weighted round robin,
least-connection, weighted least-connection, locality-based
least-connection, locality-based least-connection with
replication, destination-hashing, and source-hashing)
