06917617 is referenced by 45 patents and cites 14 patents.

Certain bits of a packet, such as bits in the IP header of an IP packet, are used to designate the type of service or Quality of Service (QoS) level to be afforded to the packet as it passes through a data communications network. A user entitled to a certain QoS level logs into a service selection gateway SSG. The SSG queries an authentication, authorization and accounting (AAA) server in response to a log-in attempt by the user. Upon authorization, the AAA server returns an access accept signal in addition to an indication from the user's service profile (user profile) as to the QoS level to be afforded the user. While the user is logged in, all packets are routed through the SSG. The SSG sets the certain bits of the packet in accordance with the user's assigned QoS level so that as the packets are routed through the data communications network, they are consistently afforded the assigned Quality of Service level. In another aspect of the invention, on-demand QoS may be provided by the SSG and accounted for by communications with the AAA server.

Title
Use of precedence bits for quality of service
Application Number
9/215630
Publication Number
6917617 (B2)
Application Date
December 16, 1998
Publication Date
July 12, 2005
Inventor
Shujin Zhang
San Mateo
CA, US
Shuxian Lou
San Jose
CA, US
Maria Alice Dos Santos
Redwood City
CA, US
Jie Chu
Los Altos
CA, US
Jane Jiaying Jin
San Jose
CA, US
Agent
David B Ritchie
Thelen Reid & Priest
Assignee
Cisco Technology
CA, US
IPC
H04L 012/54
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