Concast: design and implementation of an active network service
Calvert, K.L.; Griffioen, J.; Mullins, B.C.; Sehgal, A.; Su Wen
Selected Areas in Communications, IEEE Journal on
Volume 19, Issue 3, Mar 2001 Page(s):426 - 437
Digital Object Identifier 10.1109/49.917704
Summary:Concast is a network layer service that provides many-to-one
channels: multiple sources send messages toward one destination, and the
network delivers a single “merged” copy to that destination.
As we have defined it, the service is generic but the relationship
between the sent and received messages can be customized for particular
applications. We describe the concast service and show how it can be
implemented in a back ward-compatible manner in the Internet. We
describe its use to solve a problem that has eluded scalable
end-system-only solutions: collecting feedback in multicast
applications. Our preliminary analysis of concasting effectiveness shows
that it provides significant benefits, even with partial deployment. We
argue that concast has the characteristics needed for a programmable
service to be widely accepted and deployed in the Internet
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