Communication control apparatus
First Claim
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1. A communication control apparatus provided in each computer system for communication between computer systems linked by a computer network comprising:
- a transmit-receive circuit connected to said computer network so as to communicate between a local station and other remote stations;
a reprogrammable storage unit in which a communication program is stored;
a comparison unit connected to said transmitreceive circuit for comparing a version number of a communication control program in a packet accepted by said transmit-receive circuit with that of the communication control program stored in said storage unit and outputting comparison results as to which program is of the latest version; and
a controller connected to said comparison unit, said transmit-receive circuit and said storage unit, for performing communication between said local station and a remote station using a communication control program of the latest version compatible therebetween on the basis of an output of said comparison unit.
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Abstract
A communication control apparatus wherein the version number of a communication control program in a packet accepted by a receive circuit is compared at a comparator with that of the local station. When the version for the local station is determined to be older than the version for the remote station, the apparatus receives the latest communication control program from the remote station and stores it in a rewritable memory, thereby allowing communication using the latest version.
128 Citations
8 Claims
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1. A communication control apparatus provided in each computer system for communication between computer systems linked by a computer network comprising:
a transmit-receive circuit connected to said computer network so as to communicate between a local station and other remote stations; a reprogrammable storage unit in which a communication program is stored; a comparison unit connected to said transmitreceive circuit for comparing a version number of a communication control program in a packet accepted by said transmit-receive circuit with that of the communication control program stored in said storage unit and outputting comparison results as to which program is of the latest version; and a controller connected to said comparison unit, said transmit-receive circuit and said storage unit, for performing communication between said local station and a remote station using a communication control program of the latest version compatible therebetween on the basis of an output of said comparison unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification