Congestion control for cell networks

Details Congestion control for cell networks Congestion control for cell networks

1992-04-01

1994-05-17

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 60, 370 601, 370 941, 370 942, H04L 1256, H04L 1202

Patent

active

053134540

ABSTRACT:
A feedback control system for congestion prevention in a cell (packet) switching communication network is described. Congestion control is accomplished by controlling the transmission rate of bursty traffic in the presence of high priority, voice, low speed statistical, high speed deterministic and multicast data. Because bursty traffic is relatively insensitive to delay, adequate buffer capacity can be provided at the network nodes in order to minimize bursty data cell loss. By monitoring the buffer queue lengths at the nodes, a control signal can be generated at each intermediate node indicating the state of congestion. Excess queue length indicates incipient congestion while short queue lengths indicate excess capacity. Queue status is forwarded to the destination node where it is interpreted and sent back to the source node as a feedback rate control signal using a 2-bit code. The source node regulates the rate of bursty data transmission over the cell network in accordance with the feedback control signal thus minimizing congestion and concomitant data loss while efficiently utilizing available network bandwidth.

REFERENCES:
patent: 3988545 (1976-10-01), Kuemmerle et al.
patent: 4238851 (1980-12-01), Takahashi et al.
patent: 4475192 (1984-10-01), Fernow et al.
patent: 4491943 (1985-01-01), Turner
patent: 4494230 (1985-01-01), Turner
patent: 4499576 (1985-02-01), Fraser
patent: 4506358 (1985-03-01), Montgomery
patent: 4561090 (1985-12-01), Turner
patent: 4644533 (1987-02-01), Braff et al.
patent: 4703475 (1987-10-01), Dretzka et al.
patent: 4703477 (1987-10-01), Adelmann et al.
patent: 4757529 (1988-07-01), Glapa et al.
patent: 4771424 (1988-09-01), Suzuki et al.
patent: 4771425 (1988-09-01), Baran et al.
patent: 4819228 (1989-04-01), Baran et al.
patent: 4819230 (1989-04-01), Calvignac et al.
patent: 4839891 (1989-06-01), Kobayashi et al.
patent: 4903261 (1990-02-01), Baran et al.
patent: 4905233 (1990-02-01), Cain et al.
patent: 4914650 (1990-04-01), Sriram
patent: 4939718 (1990-07-01), Servel et al.
patent: 4974224 (1990-11-01), Boone
patent: 5020058 (1991-05-01), Holden et al.
patent: 5072449 (1991-12-01), Enns et al.
patent: 5088032 (1992-02-01), Bosack
patent: 5115431 (1992-05-01), Williams et al.
K. K. Ramakrishnan and R. Jain, "A Binary Feedback Scheme for Congestion Avoidance in Computer Networks," ACM Transactions on Computer System, vol. 8, pp. 158-181 (May, 1990).
K. W. Fendick, D. Mitra, I. Mitrani, M. A. Rodrigues, J. B. Seery, and A. Weiss, "An Approach to High-Performance, High-Speed Data Networks," IEEE Communications Magazine, pp. 74-82 (Oct. 1991).
C. Anthony Cooper and Kun I. Park, "Toward a Broadband Congestion Control Strategy," IEEE Network Magazine, pp. 18-23 (May 1990).
K. Bala, I. Cidon and K. Sohraby, "Congestion Control for High Speed Packet Swtiched Networks," IEEE, pp. 520-526 (1990).
IPX System Operation Guide, StrataCom, Inc., pp. 2-1 through 2-18 (1988).
The IPX Product Family System Description, StrataCom, Inc., pp. 1-114 (1990).

Affiliated with

Also associated with

Rating

Congestion control for cell networks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Congestion control for cell networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Congestion control for cell networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-882889