Frame removal mechanism using count of frames and delimiter fram

Details Frame removal mechanism using count of frames and delimiter fram Frame removal mechanism using count of frames and delimiter fram

1992-05-11

1994-07-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 8514, 370 8515, H04J 314

Patent

active

053316363

ABSTRACT:
A station transmits a sequence of one or more frames on a token ring, keeping count of the frames transmitted. At the end of the transmitted frame the station originates onto the ring one or more coded marker frames and finally transmits a token. After the station transmission is begun, the station strips from the ring all the frames it receives, decrementing its count for each properly stripped frame, until either its count is reduced to zero or one of its marker frames is detected.

REFERENCES:
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patent: 4567590 (1986-01-01), Bederman
patent: 4577313 (1986-03-01), Sy
patent: 4646232 (1987-02-01), Chang et al.
patent: 4789982 (1988-12-01), Coden
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patent: 4941142 (1990-07-01), Kida
May 13, 1988, Memo to: IEEE 802-5 Voting embers by Jacalyn Winkler, 2 pages.
May 20, 1988, Modifications to the IEEE 802.5 Standard to Include Early Token Release, by Jacalyn Winkler, 6 pages.
December 1, 1987 Changes to the IEEE 802.5 Standard to Include Early Token Release, 3 pages.
November 17, 1986, Enhancement to the Token Ring Protocol: Early Token Release, 5 numbered pages and 8 Figs.
1985, ANSI/IEEE Standard 802.5, 89+ pages.
Data Communications. vol. 13, No. 9, Aug. 1984, New York, N.Y. US, pp. 125-139; J. Bartik; "IBM's token ring: Have the pieces finally come together?", see p. 131, left-hand column, lines 3-13, see p. 135, left-hand column, line 17-p. 136, left-hand column, line 10.
American National Standard (ANSI) Fiber Distributed Data Interface (FDDI) Token Ring Media Access Control (MAC) ANSI X3.139-1987.
System Considerations and Error Analysis in FDDI, Hawe (slide presentation).

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