Patents Assigned to Transtech Networks USA, Inc.
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Patent number: 7117269Abstract: A 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 Layer 7 or 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 Layer 7 content avoids delayed binding in a new TCP session. Layer 7 content is not available during the initial handshaking phase of a new TCP session.Type: GrantFiled: April 30, 2002Date of Patent: October 3, 2006Assignee: Transtech Networks USA, Inc.Inventors: Leonard L. Lu, Deh-Phone K. Hsing, Bo-Chao Cheng, Tsong-Ho Wu
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Publication number: 20060031374Abstract: A 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 Layer 7 or 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 Layer 7 content avoids delayed binding in a new TCP session. Layer 7 content is not available during the initial handshaking phase of a new TCP session.Type: ApplicationFiled: September 2, 2005Publication date: February 9, 2006Applicant: Transtech Networks USA, Inc.Inventors: Leonard Lu, Deh-Phone Hsing, Bo-Chao Cheng, Tsong-Ho Wu
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Patent number: 6944678Abstract: A 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 Layer 7 or 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 Layer 7 content avoids delayed binding in a new TCP session. Layer 7 content is not available during the initial handshaking phase of a new TCP session.Type: GrantFiled: June 18, 2001Date of Patent: September 13, 2005Assignee: Transtech Networks USA, Inc.Inventors: Leonard L. Lu, Deh-phone K. Hsing, Bo-Chao Cheng, Tsong-Ho Wu
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Patent number: 6772211Abstract: A 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 Layer 7 or 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 Layer 7 content avoids delayed binding in a new TCP session. Layer 7 content is not available during the initial handshaking phase of a new TCP session.Type: GrantFiled: April 30, 2002Date of Patent: August 3, 2004Assignee: Transtech Networks USA, Inc.Inventors: Leonard L. Lu, Deh-Phone K. Hsing, Bo-Chao Cheng, Tsong-Ho Wu
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Publication number: 20020194342Abstract: A 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 Layer 7 or 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 Layer 7 content avoids delayed binding in a new TCP session. Layer 7 content is not available during the initial handshaking phase of a new TCP session.Type: ApplicationFiled: June 18, 2001Publication date: December 19, 2002Applicant: TRANSTECH NETWORKS USA, INC.Inventors: Leonard L. Lu, Deh-phone K. Hsing, Bo-Chao Cheng, Tsong-Ho Wu