InfiniBand Network Architecture

Packet Delivery Delays

Assumptions in This Section

This phase of the discussion assumes the following:

• No request or response packets are dropped. This section assumes that all request packets generated by the requester QP's SQ Logic eventually arrive at the responder QP's RQ Logic. Likewise, it assumes that all responses generated by the responder QP's RQ Logic eventually arrive at the requester QP's SQ Logic.

• Delivery of request or response packets may be delayed. The message request and/or response packets may be delayed along the flight path between the requester and responder QPs. This can result in some interesting situations that the requester and responder QPs must handle in a graceful manner. This section describes the possible causes ...