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Forwarding for network devices
 
   
Document Number
US Patent 7525949
Issued Date
April 28, 2009
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Abstract
Techniques for implementing forwarding in network devices are provided. Proxy addresses are used in place of next hop addresses so that a large routing table is not required. Pairs of proxy IP and MAC addresses can be used to allow this optimization to occur completely transparent to any other device in the network. One or more smaller tables can be utilized in place of a large routing table to more efficiently implement forwarding. Additionally, the technique can be utilized without requiring modification of other hardware devices in the network.
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Number of Claims:
19
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Owner
Cisco Technology, Inc. (San Jose, CA)
Published
April 28, 2009
Application Number
10/140,613
Filed
May 7, 2002
US Classification
370/352   370/401 370/475
Int'l Classification
H04L   12/66   (20060101)  
Examiner
Assistant Examiner
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