Each host uses a UDP socket to listen for statistics advertised by
other hosts. The statistics include the average latency and number of
IOs per LUN. Each host either broadcasts its data on a common subnet,
or sends it to every other host individually. This is an instance of
the general average- and sum-aggregation problem for which multicast-based
solutions also exist [29].
Ajay Gulati
2009-01-14
