FIX Session Initiation

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Imported from previous forum

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I have a question regarding FIX Session Initiation.
Who has to initiate the FIX session.Is it OMS(Order Management System) or EV(Execution Venue).Do we have to take into account who is socket server and who is socket client in initiating the FIX Session.

Thanks,
Savitri.

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Counterparties agree which side will initiate the FIX session. When implementing the FIX session via TCP sockets (as pretty much all do), the initiater performs the TCP open (socket client) and the acceptor performs the TCP listen and accept (socket server). Typically the buyside (i.e. OMS) will act as initiator to the sellside (i.e. Execution Venue or Broker/Dealer).

> I have a question regarding FIX Session Initiation.
> Who has to initiate the FIX session.Is it OMS(Order Management System) or EV(Execution Venue).Do we have to take into account who is socket server and who is socket client in initiating the FIX Session.
>
> Thanks,
> Savitri.
>