Browse Prior Art Database

Local Area Network Transmit Forward

IP.com Disclosure Number: IPCOM000044083D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Beumeler, WM: AUTHOR [+2]

Abstract

This article describes a message format and technique for measuring the path lengths between two stations in a communicating network system. A plurality of transmit forward messages are concatenated and are subsequently processed to provide the measurement information. Each station receiving the concatenated message strips off a portion of the header and the trailer. The process (that is, stripping) continues until an originating station receives a return message containing the measurement information. The message uses a transmit forward format. The destination station retransmits the data as a new message. The format is as follows: "X,C,B(DATA)" where "X" represents a transmit forward header and informs C to retransmit the "DATA" as a new message.

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Local Area Network Transmit Forward

This article describes a message format and technique for measuring the path lengths between two stations in a communicating network system. A plurality of transmit forward messages are concatenated and are subsequently processed to provide the measurement information. Each station receiving the concatenated message strips off a portion of the header and the trailer. The process (that is, stripping) continues until an originating station receives a return message containing the measurement information. The message uses a transmit forward format. The destination station retransmits the data as a new message. The format is as follows: "X,C,B(DATA)" where "X" represents a transmit forward header and informs C to retransmit the "DATA" as a new message. It should be noted that if "h" is positioned in place of "X" it indicates a normal header. "C" indicates the message destination is C. "B" represents the message source. "DATA" represents the information to be transmitted. An example will now be given to explain how the new format works. Suppose station C desires to measure the path length between station B and station A. Using the transmit forward technique, the messages would be as follows: Message from C to A:X,A,C (X,B,A (h,C,B (Test Message))) Message from A to B:X,B,A (h,C,B (Test Message)) Message from B to C:h,C,B (Test Message) The message from A to B is derived from the message from C to A by removing the header and trailer...