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iLink 3 Binary Order Entry - Session Layer

iLink 3 Binary Order Entry - Session Layer

iLink 3 uses the FIX Performance (FIXP) protocol to establish and manage bi-directional sessions. Per the FIXP protocol, a FIX session is defined as a bi-directional stream of ordered messages between two parties within a continuous sequence number series. With iLink 3, the Market Segment Gateways (MSGW) will support weekly client FIX sessions and also support mid-week initialization.

FIXP Session Attributes

In iLink 3, for each customer, the MSGW starts the session at the beginning of the week. A FIXP session will be maintained by default on a weekly basis; however, the customer can Negotiate, Establish, and Terminate multiple times. Each FIXP session will also be represented with a Universally Unique ID (UUID), which should be a current timestamp.

The term, FIX connection, has a new connotation in iLink 3. A successful logon consists of a two-step process that involves first Negotiation and then Establishment.

The exchange will support a FIXP session created at the beginning of the week all through the end of that week. The customer can then Establish and Terminate FIX connections multiple times intra-day or at the end of each day, with the same UUID or Negotiate the new FIXP session with a new UUID as well.

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