Multiplex communications – Wide area network – Packet switching
Patent
1996-07-08
1998-10-13
Rinehart, Mark H.
Multiplex communications
Wide area network
Packet switching
39520065, 39520061, 370252, G06F 1342, G06F 1517, H04J 1228
Patent
active
058225439
ABSTRACT:
Disclosed apparatus and method enable a host computer or server in a non-synchronous data communication network--e.g. a network in which data is subject to routing over transmission paths of indefinite configurations and lengths, and receptive handling of indefinite duration--to gather time statistics from client computers or terminals receiving the data; particularly statistics useful for determining: (a) transit times of data from server to clients; (b) times elapsed at client stations, between reception of data and one or more events pre-specified in information accompanying the data; and (c) transit times of return messages sent from respective client stations to the server. Control information attached to transmitted data includes a "timing script" written in a scripted language subject to interpretation by software at the client station receiving the data. In addition to the timing script, other information presently attached to transmitted data includes an identity ("data ID") value uniquely associated with the transmitted data, and a starting time value ST.sub.0 representing the time at which transmission of the data started. The timing script causes a computer or intelligent terminal at the client station to start a local timer, and send two or more return messages back to the originating server. Each return message contains the data ID and time information. A first return message (MSG1), sent immediately upon reception of the data, includes the start time ST.sub.0. One or more second messages (MSG2) sent conditionally after the first message indicate times elapsed between reception of the data and one or more user handling events effectively pre-specified in the timing script.
REFERENCES:
patent: 4905171 (1990-02-01), Kiel et al.
patent: 5081680 (1992-01-01), Bennett
patent: 5131848 (1992-07-01), Adams
patent: 5163054 (1992-11-01), Nagy
patent: 5293463 (1994-03-01), Masuda
patent: 5446733 (1995-08-01), Tsuruoka
patent: 5457806 (1995-10-01), Kitamura
patent: 5550807 (1996-08-01), Kuroshita
patent: 5602992 (1997-02-01), Danneels
patent: 5668800 (1997-09-01), Stevenson
patent: 5696904 (1997-12-01), Hashimoto et al.
patent: 5699511 (1997-12-01), Porcaro et al.
patent: 5712982 (1998-01-01), Marcel
IBM Technical Disclosure Bulletin; Realtime Throughput Measurement, vol. 26, No. 10B, Mar. 1984, pp. 5688-5698.
IBM Technical Disclosure Bulletin; General Purpose Data Collection Method, vol. 16, No. 6, Nov. 1973, pp. 1796-1798.
IBM Technical Disclosure Bulletin; Serial Channel Utilization Distribution, vol. 22, No. 1, Jun. 1979, pp. 245-247.
IBM Technical Disclosure Bulletin; Network Monitor, vol. 25, No. 2, Jul. 1982, pp. 543-547.
Dunn James Michael
Stern Edith Helen
Willner Barry
International Business Machines - Corporation
Lieber Robert
Rinehart Mark H.
Tomlin Richard A.
LandOfFree
Gathering data handling statistics in non-synchronous data commu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gathering data handling statistics in non-synchronous data commu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gathering data handling statistics in non-synchronous data commu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-323743