Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating
Reexamination Certificate
2011-05-03
2011-05-03
Lim, Krisna (Department: 2453)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer data transfer regulating
C709S236000
Reexamination Certificate
active
07937490
ABSTRACT:
The content-aware application switch and methods thereof intelligently switch client packets to one server among a group of servers in a server farm. The switch uses Layer7or application content parsed from a packet to help select the server and to schedule the transmitting of the packet to the server. This enables refined load-balancing and Quality of-Service control tailored to the application being switched. In another aspect of the invention, a slow-start server selection method assigned an initially boosted server load metric to a server newly added to the group of servers under load balancing. This alleviates the problem of the new server being swamped initially due to a very low load metric compared to that of others. In yet another aspect of the invention, a switching method dependent on Layer7content avoids delayed binding in a new TCP session. Layer7content is not available during the initial handshaking phase of a new TCP session. The method uses the Layer7content from a previous session as an estimate to help select the server and uses a default priority to scheduling the transmitting of the handshaking packets. Updated Layer7content available after the handshaking phase is then used to reset the priority for the transmit schedule and becomes available for use in load balancing of the next TCP session.
REFERENCES:
patent: 6578068 (2003-06-01), Bowman-Amuah
patent: 6598034 (2003-07-01), Kloth
patent: 6772211 (2004-08-01), Lu et al.
patent: 6944678 (2005-09-01), Lu et al.
patent: 7062556 (2006-06-01), Chen et al.
patent: 7062571 (2006-06-01), Dale et al.
patent: 7120662 (2006-10-01), Vange et al.
patent: 7523454 (2009-04-01), Romero et al.
patent: 2002/0019853 (2002-02-01), Vange et al.
patent: 2002/0069279 (2002-06-01), Romero et al.
Cheng Bo-Chao
Hsing Deh-phone K.
Lu Leonard L.
Wu Tsong-Ho
Lim Krisna
Open Invention Network LLC
Williams Mullen
LandOfFree
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