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Task Dynamic Allocation in a Frame-Switching Node

IP.com Disclosure Number: IPCOM000057533D
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Blanc, A Jeanniot, P [+details]

Abstract

Existing SNA or X25 switching nodes combine in one product network access function and network transit function. The control programs are generally complex, and the path lengths are such that the performance is low. The network transit function performance has been improved by using a high performance frame switching node with a pool of processors (i.e., switch processors) being assigned to the frame-switching node, and connected to the same multi-processor bus on which are connected all the line adapters through which data is transferred to the external system. A task dynamic allocation feature has been implemented to reduce waiting loops in each processor of the pool. Each frame processing is divided into two fully independent tasks, i.e., routing tag analysis and data transfer initialization.