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Summary: A Timingbased Schema for
Stabilizing Information Exchange
Anish Arora \Lambda David M. Poduska
Abstract
The paradigm of information exchange provides a ba
sis for nodes in a network to stay uptodate with the recent
information in the network. In this paradigm, nodes coop
erate with each other to share their current information.
We present a simple and uniform schema for building in
formation exchange protocols that are stabilizing, in the
following strong sense. Starting from arbitrary state, the
protocols reach within bounded realtime a state wherefrom
all nodes remain uptodate with the recent information in
the network.
The ability to stabilize in bounded time is achieved by
using timingbased actions. The timing constraints on
these actions can be systematically adapted to suit a vari
ety of network loads, delay requirements, and scheduling re
strictions and to tolerate outofphase and driftprone node
clocks. Our schema also tolerates any number of topolog
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