Table of Multicast ports used by the Casa Entity to
listen for Wildcard Affinities in the case of a
Forwarding Agent, or for sending Wildcard Affinities
in the case of a Service Manager.
Adding entries to this table allows Forwarding Agents
and Service Managers to exchange Wildcard Affinities
on that multicast port. In this way, groups of
Forwarding Agents may be configured to participate
with particular groups of Service Managers.