Using a systems network architecture logical unit activation request unit as a dynamic configuration definition in a gateway

A computer-implemented method for indicating an SNA logical unit type for an SNA logical unit communicatively linked to a network, the network communicatively linked to an SNA Gateway and a host computer, the computer-implemented method comprising:

• sending an “SLU enable” control vector to the host computer signifying that the SNA logical unit is a powered on device;
• measuring time from the sending of the “SLU enable” control vector to the host computer;
• and
• if no Bind request for the logical unit has been received by the Gateway from the host computer within a predetermined amount of time from the time of the sending of the “SLU enable” control vector, then indicating in the Gateway a predetermined SNA logical unit type for the SNA logical unit without knowledge of the actual SNA logical unit type of the SNA logical unit.

A system for generating an association between an SNA logical unit type and an SNA logical unit, the SNA logical unit type stored in an SNA Gateway communicatively linked to a host computer, the system comprising:

• a Gateway transmission component configured to send to the host computer a positive sense code in response to an Activate Logical Unit (ACTLU) Request Unit (RU) for the SNA logical unit;
• a timer configured to measure an amount of time elapsed from when the Gateway transmission component sends the positive sense code in response to the ACTLU RU for the SNA logical unit;
• and
• an assignment unit configured to generate an association between a predetermined logical unit type and the SNA logical unit without knowledge of the actual SNA logical unit type of the SNA logical unit if no Bind request for the SNA logical unit has been received within a predetermined amount of time from the sending of the positive sense code.

A method for programming a Gateway to assign an SNA logical unit type to an SNA logical unit represented by an entry stored in the Gateway, the Gateway being communicatively linked to an SNA network having a host computer, the method comprising:

• programming the Gateway to send a positive sense code in response to an Activate Logical Unit (ACTLU) Request Unit (RU) for the SNA logical unit, the SNA logical unit having an actual SNA logical unit type;
• programming the Gateway to measure time from the sending of the positive sense code;
• and
• programming the Gateway that if no Bind request for the SNA logical unit has been received within a predetermined amount of time from the time of the sending of the positive sense code, then assigning a predetermined SNA logical unit type to the SNA logical unit without having knowledge of the actual SNA logical unit type of the SNA logical unit.