Wide-area interactive conferencing has become a lively issue to the In
ternet community and to many other network research groups as well, In
this paper, we describe a Sticky conference control protocol that has
been deployed for n-way video-conferencing on the worldwide Defense S
imulation Internet, It differs from other well-known conference protoc
ols in its lack of shared state and explicit modeling of a conference
membership as a (possibly incomplete) directed graph, rather than assu
ming full connectivity, It also takes an unusual 'late-binding' approa
ch to resource and bandwidth negotiation, We describe the architecture
and mechanisms of the Sticky protocol, then contrast it with the CCP
and Light-Weight Session conference control protocols.