Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2005-03-15
2005-03-15
Rao, Seema S. (Department: 2666)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S395410, C370S412000
Reexamination Certificate
active
06868065
ABSTRACT:
A method and apparatus for implementing Quality of Service (QoS) policy in a data communications network. An active flow content addressable memory (CAM) contains entries of flow information for each active flow of packets passing through a given node of the data communications network. The CAM has associated with each entry a packet counter, a byte counter, a token bucket, and a contract value. Each flow is assigned one of a plurality of output queues and optionally at least one output threshold value. A token bucket algorithm is employed on each flow to determine whether packets from that flow exceed the contract value. Such packets may be dropped or optimally modified to reflect an alternate output queue and/or alternate threshold before being sent to the selected output queue for transmission from the node.
REFERENCES:
patent: 5313579 (1994-05-01), Chao
patent: 5602830 (1997-02-01), Fichou et al.
patent: 5649110 (1997-07-01), Ben-Nun et al.
patent: 5828653 (1998-10-01), Goss
patent: 5841874 (1998-11-01), Kempke et al.
patent: 6094435 (2000-07-01), Hoffman et al.
patent: 6104700 (2000-08-01), Haddock et al.
patent: 6122252 (2000-09-01), Aimoto et al.
patent: 6163542 (2000-12-01), Carr et al.
patent: 6335932 (2002-01-01), Kadambi et al.
patent: 6643260 (2003-11-01), Kloth et al.
Cisco Delivers New Advanced Capabilities to the Lightstream 1010 Multiservice ATM Switch, Jan. 27, 1997. newsroom.cisco.com/dlls/prod_012797.html.
Dutt Dinesh G.
Edsall Thomas J.
Fine Michael
Kloth Raymond J.
Cisco Technology Inc.
Harper Kevin C.
Rao Seema S.
Robbins Steven J.
Thelen Reid & Priest LLP
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