Communication networks that provide a common transport domain for use by multiple service domains and methods and computer program products for using the same
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United States of America Patent
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Jun 24, 2014
Grant Date -
Jun 23, 2011
app pub date -
Dec 17, 2009
filing date -
Dec 17, 2009
priority date (Note) -
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Abstract
A method of operating a communication network comprises receiving loopback addresses from a plurality of edge networks at a provider router of a core backbone network, the edge networks and the core backbone network being logically distinct from each other, advertising the loopback addresses to a transport route reflector element, propagating the advertisement of the loopback addresses to other provider routers of the core backbone network using a protocol for communicating between autonomous systems, and using the transport route reflector element to advertise at least one of the loopback addresses to a service route reflector element in one of the plurality of edge networks.
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