interior gateway protocol
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... Autonomous System is a set of routers
under a single technical administration, using an interior gateway
protocol and common metrics to route packets within the AS, and
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... Since this classic definition was developed, it has become common
for a single AS to use several interior gateway protocols and
sometimes several sets of metrics within an AS. The use of the
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... In routing terms, an AS will normally use one or more interior
gateway protocols (IGPs) when exchanging reachability information
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