Distribution of reachability information in data virtual private networks
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United States of America Patent
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Apr 13, 2010
Grant Date -
Jun 26, 2008
app pub date -
Oct 15, 2007
filing date -
Nov 18, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
In methods and apparatus for acquiring VPN reachability information at a node of a data network, a VPN reachability information request is transmitted from a requesting node. The VPN reachability information request comprises a VPN identifier. Other nodes of the data network receive the VPN reachability information request and, if they have reachability information relevant to that VPN, they transmit such information to the requesting node where it is received and stored. The invention can be used in MPLS VPN architectures.
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