Forwarding of internetwork packets to a destination network via a selected one of a plurality of paths
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United States of America Patent
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Dec 1, 1998
Grant Date -
N/A
app pub date -
Feb 15, 1996
filing date -
Feb 15, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A method for filtering an internetwork packet wherein multiple paths to a destination network are provided. The method comprises the step of providing a forwarding list that comprises a plurality of entries selected by a user. The forwarding list indicates a plurality of possible paths to a selected destination. One of the entries is selected by the user as a primary entry that indicates a default path. When an internetwork packet is destined for the destination network is received, the packet is forwarded to the destination network via the default path if the primary entry indicates a valid path. Otherwise, the packet is forwarded to the destination network via another path as indicated by another entry. According to an alternative embodiment, a different forwarding list is provided for each subnetwork of a source network, and the forwarding list is selected based on the source address of the packet.
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