Dynamic Address Assignment Using an Insertion Ring of a Distributed Data Processing System
Original Publication Date: 1988-Nov-01
Included in the Prior Art Database: 2005-Feb-15
This article describes a technique which allows node addresses in a local insertion ring architecture of a distributed data processing system to be dynamically assigned. In a local area network such as the one disclosed on pages 166-169 in this issue, using a restricted broadcast frame defined as a Broadcast Select Address order, a system operations port (SOP) may assign an address dynamically to a new node or nodes on the insertion ring. The broadcast frame contains a positive acknowledgement bit field and an expanding address acknowledgement field. The format of this broadcast order is defined as follows: (Image Omitted) The SOP issues the Broadcast Select Address order with each bit on in the positive acknowledgement bit field that corresponds with each address that has already been assigned on the insertion ring.