Methods, systems and computer program products for resuming SNA application-client communications after loss of an IP network connection
First Claim
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1. A method for preserving a session between an SNA application and a TN3270E server after loss of an IP connection between the TN3270E server and a TN3270E client that is associated with the session, the method comprising:
- reestablishing the IP connection between the TN3270E server and the TN3270E client; and
thenforwarding a screen refresh request to the SNA application;
receiving a screen refresh from the SNA application; and
forwarding the screen refresh to the TN3270E client over the reestablished IP connection, wherein forwarding a screen refresh request to the SNA application comprises sending an LUSTAT message to the SNA application.
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Abstract
Systems, methods and computer program products are provided for preserving a session between an SNA application and a TN3270E server after loss of an IP network connection between the TN3270E server and a TN3270E client that is communicating with the SNA application via the SNA session.
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Citations
11 Claims
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1. A method for preserving a session between an SNA application and a TN3270E server after loss of an IP connection between the TN3270E server and a TN3270E client that is associated with the session, the method comprising:
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reestablishing the IP connection between the TN3270E server and the TN3270E client; and
thenforwarding a screen refresh request to the SNA application; receiving a screen refresh from the SNA application; and forwarding the screen refresh to the TN3270E client over the reestablished IP connection, wherein forwarding a screen refresh request to the SNA application comprises sending an LUSTAT message to the SNA application. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for preserving a session between an SNA application and a TN3270E server after loss of an IP connection between the TN3270E server and a TN3270E client that is associated with the session, comprising:
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means for reestablishing the P connection between the TN3270E server and the TN3270E client; means for forwarding a screen refresh request to the SNA application; means for receiving a screen refresh from the SNA application; and means for forwarding the screen refresh to the TN3270E client over the reestablished IP connection, wherein forwarding a screen refresh request to the SNA application comprises sending an LUSTAT message to the SNA application.
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8. A computer program product for preserving a session between an SNA application and a TN3270E server after loss of an IP connection between the TN3270E server and a TN3270E client that is associated with the session, the computer program product comprising a computer usable storage medium having computer readable program code means embodied in the medium, the computer readable program code means comprising:
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computer readable program code means for reestablishing the IP connection between the TN3270E server and the TN3270E client; computer readable program code means for forwarding a screen refresh request to the SNA application; computer readable program code means for receiving a screen refresh from the SNA application; and computer readable program code means for forwarding the screen refresh to the TN3270E client over the reestablished IP connection, wherein forwarding a screen refresh request to the SNA application comprises sending an LUSTAT message to the SNA application.
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9. A method for preserving a session between an SNA application server and a second server after loss of an IP connection between the second server and an SNA client that is associated with the session, the method comprising:
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reestablishing the IP connection between the second server and the SNA client; receiving a screen refresh request from the SNA client over the reestablished IP connection; forwarding a screen refresh request to the SNA application server; receiving a screen refresh from the SNA application server in response to the screen refresh request; forwarding the screen refresh to the SNA client over the reestablished IP connection, wherein forwarding a screen refresh request to the SNA application server comprises sending an LUSTAT message to the SNA application server. - View Dependent Claims (10, 11)
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Specification