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Browse Prior Art Database

Settable Work Load Limit

IP.com Disclosure Number: IPCOM000075813D
Original Publication Date: 1971-Nov-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Wheeler, WR: AUTHOR

Abstract

In larger communication systems where terminals may be automatically and selectively dialed over a switched network, it is desirable to group outgoing transmission lines of similar characteristics and make them available as a group for individual allocation to services needing such lines. It is also desirable to attempt to complete a call to a terminal over secondary (usually more expensive) facilities, if a line of the primary group is not available and dialing requests are overloading system facilities.

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Settable Work Load Limit

In larger communication systems where terminals may be automatically and selectively dialed over a switched network, it is desirable to group outgoing transmission lines of similar characteristics and make them available as a group for individual allocation to services needing such lines. It is also desirable to attempt to complete a call to a terminal over secondary (usually more expensive) facilities, if a line of the primary group is not available and dialing requests are overloading system facilities.

The system described is an improvement, which avoids the use of the secondary facilities if there is a probability that the call awaiting service will not have too long a wait. This is done by providing for each primary group of lines, a queue for the calls which cannot be immediately served by that group. So long as the queue has a reasonable number of entries, it is probable that due to the normal on and off nature of the data communication traffic, service will be available in a short interval. If, however, service cannot be provided within a reasonable time as will be indicated by an excessive number of queue entries, then the programmed transfer of call requests to the lines of the secondary facilities should be made.

The determination of how long a queue is permissible is up to the user and can be set for each group of lines. Each time a group of lines is fully in use and a pending call is added to its queue, the number of queued c...