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Current experimentation model emphasizes multicast for "service advertisement" vs. content distribution.
Hypothesis: A multicast "service advertisement" can be useful when service discovery decisions are "context-sensitive" (time/locality/state). The need to consider "upstream" factors. can impact local decisions about service availability. The multicast efficiently propagates a request with sufficient context to the multicast group of service providers. In this environment a multicast strategy may be a useful adjunct to a less flexible (thought more efficient) "yellow-page" discovery model.