Method for weighted load-balancing among network interfaces

Details Method for weighted load-balancing among network interfaces Method for weighted load-balancing among network interfaces

2011-03-01

2011-03-01

Rao, Seema S (Department: 2462)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S389000, C709S232000, C709S241000

Reexamination Certificate

active

07898959

ABSTRACT:
A logical load-balancing method for distributing traffic according to a set of weights among a group of network interfaces. A logical identity of a packet may be generated, e.g., by generating a hash index of the packet's header. Each of the weights may be associated with a network interface. A range of logical identities, or its boundary, may be determined for an interface according to the weight associated with the interface member. A packet may be directed to an interface if the packet's logical identify falls into the range of the interface.

REFERENCES:
patent: 7190696 (2007-03-01), Manur et al.
patent: 2008/0291826 (2008-11-01), Licardie et al.
patent: 2008/0298236 (2008-12-01), Ervin et al.
Broadcom, BCM5695 Product Brief, Multilayer 12-port Gigabit Ethernet Stackable Switch, 2004.
Thaler, D. et al., RFC 2991, “Multipath Issues in Unicast and Multicast Next-Hop Selection”, Nov. 2000, 9 pages.
Hopps, C., RFC 2992, “Analysis of an Equal Cost Multi-Path Algorithm,” Nov. 2000, 8 pages.

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