Providing reachability information in a routing domain of an external destination address in a data communications network
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United States of America Patent
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Jun 7, 2011
Grant Date -
Mar 13, 2008
app pub date -
Sep 8, 2006
filing date -
Sep 8, 2006
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Abstract
An apparatus for providing reachability in a routing domain of a data communications network having as components nodes and links therebetween for a routing domain external destination address is provided. The apparatus is arranged to advertise destination address reachability internally to nodes in the routing domain and associate a reachability category with the internal advertisement of the destination address reachability.
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