A common programming interface in a communication subsystem controller allows protocols to be developed or modified to communicate with the communication subsystem controller. Once a protocol layer is able to communicate with the communication subsystem controller, the protocol layer is stacked with other protocol layers compatible with the communication subsystem controller. A table in the communication subsystem controller specifies an order of protocol layers in the protocol stack. These protocol layers in the protocol stack communicate with their adjacent protocol layers through the communications subsystem controller.
* 5,491,693 General transport layer gateway for heterogeneous networks
* 5,802,306 Supporting multiple client-server sessions from a protocol stack associated with a single physical adapter through use of a plurality of logical adapters
* 5,764,915 Object-oriented communication interface for network protocol access using the selected newly created protocol interface object and newly created protocol layer objects in the protocol stack
* 6,023,734 Establishing direct communications between two hosts without using a high performance LAN connection
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