RFC 2121 (rfc2121) - Page 3 of 12
Issues affecting MARS Cluster Size
Alternative Format: Original Text Document
RFC 2121 Issues affecting MARS Cluster Size March 1997
When a multicast group is VC Mesh based, a group member terminates
a VC from every sender to the group, per group.
When a multicast group is MCS based, the MCS terminates a VC from
every sender to the group.
LEAFmax affects the Cluster size because of the following:
ClusterControlVC from the MARS. It has a leaf node per cluster
member (MARS Client).
Packet forwarding SVCs out of each MARS Client for each IP
multicast group being sent to. It has a leaf node for each group
member when a group is VC Mesh based.
Packet forwarding SVCs out of each MCS for each IP multicast group
being sent to. It has a leaf node for each group member when a
group is MCS based.
If we have N cluster members, and M multicast groups active (using VC
Mesh mode, and densely populated - all receivers are senders), the
following observations may be made:
ClusterControlVC has N leaf nodes, so
N