06567377 is referenced by 77 patents.

A method for selecting a network interface card (NIC) to be used to send an outgoing data packet from a server computer system having a plurality of NICs coupled thereto. The outgoing data packet is addressed using an Internet Protocol (IP) address and a Transmission Control Protocol (TCP) port number. A load balancing scheme is executed in order to select a NIC from the plurality of NICs. In one embodiment, the load balancing scheme is a function of the IP address; in alternate embodiments, the load balancing scheme is a function of the IP address and either the destination or source TCP port number. The media access control (MAC) address that represents the selected NIC is inserted in the outgoing data packet. The data packet is then sent using the selected NIC.

Title
High performance load balancing of outbound internet protocol traffic over multiple network interface cards
Application Number
9/272084
Publication Number
6567377 (B1)
Application Date
March 18, 1999
Publication Date
May 20, 2003
Inventor
Thomas A Maufer
Santa Clara
CA, US
Sameer Nanda
Sunnyvale
CA, US
Roman G Baker
San Jose
CA, US
RamKrishna Vepa
Danville
CA, US
Agent
Wagner Murabito & Hao
US
Assignee
3Com Corporation
CA, US
IPC
H04L 12/56
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