04954821 is referenced by 5 patents and cites 7 patents.

The invention enables two nodes in a communications network to dynamically establish the transmission group number used to partially identify a given link between the nodes. When the link is being activated, both nodes simultaneously propose either a zero or a non-zero number to each other in an exchange of exchange identification (XID) messages. If only one of the nodes proposed a non-zero number, that non-zero number is selected as the transmission group number. If both nodes had proposed zero or both had proposed non-zero numbers, predetermined criteria are employed to select a controlling node. The controlling node chooses the final transmission group number and communicates that choice to the non-controlling node.

Title
Method of establishing transmission group numbers for network links
Application Number
7/168286
Publication Number
4954821
Application Date
March 15, 1988
Publication Date
September 4, 1990
Inventor
Lee M Rafalow
Durham
NC, US
Diane P Pozefsky
Chapel Hill
NC, US
Jeffrey G Knauth
Raleigh
NC, US
James P Gray
Chapel Hill
NC, US
Agent
Gerald R Woods
Assignee
International Business Machines Corporation
NY, US
IPC
H04Q 1/00
View Original Source