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InfiniBand Network Architecture by MindShare, Inc., Tom Shanley

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Sending a Message to a Destination CA

Definition of Requester and Responder

In the specification, the QP SQ Logic that is sending request packets is referred to as the requester, while the QP RQ Logic that is receiving them is referred to as the responder.

Example Scenario Assumptions

This example scenario assumes that the QPs being used were created earlier in time. It also makes the following assumptions:

  • The companion QPs in the two CAs are both of the Reliable Connected (RC) type (see “QP Type” on page 41).

  • The start PSN assigned to the SQ Logic in CA “X” is 100, while the start PSN assigned to the SQ Logic in CA “Y” is 2000—see “SQ Start PSN (Packet Sequence Number)” on page 41.

  • The two QPs have just been created and set up and have not yet ...

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