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FIXP - FIX performance session layer specification
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[04PointToPointSessionProtocol.md] NextExpectedSeqNum support #36

Closed ujos closed 6 years ago

ujos commented 6 years ago

04PointToPointSessionProtocol.md The server should evaluate NextSeqNo to determine whether it missed any messages after re-establishment of a recoverable flow. If so, it may immediately send a RetransmitRequest after sending EstablishAck.

Why do not send NextExpectedSeqNum in Establishment and EstablishmentAck messages and send missed messages automatically?

donmendelson commented 6 years ago

This wording should be changed. The server could send EstablishmentAck then Retransmission and the first batch of retransmitted application messages. Retransmission is an iterative process to affect flow control and prevent blocking of real-time messages.