Network tunnelling
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United States of America Patent
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Aug 23, 2011
Grant Date -
Aug 19, 2004
app pub date -
Mar 12, 2002
filing date -
Mar 27, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
MPLS labels can be used to tunnel data packets through IP networks. At a start point such as a router or network terminator, the IP destination address is examined and one or more labels are generated which relate to the topology of the network. The labels can include QoS information. The packet is then sent to the destination via a label switched path. At the destination the packet may be sent on via a further label switched path by examining the IP address from the received label and generating one or more fresh labels for the passage of the packet through the further label switched path.
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