iLink is the path by which client systems connect to and transact business on the CME Globex platform.

iLink Architecture provides an overview of iLink Gateway architecture including the Convenience Gateway (CGW) and Market Segment Gateway (MSGW).

For iLink, 'Session Layer' entails the establishing and maintaining of a FIX session over a TCP/IP connection to CME Globex.

'Business Layer' entails the sending and receiving of business messages over that session to transact business functions on CME Globex.

iLink supports Binary Order Entry messaging protocols.

Use this search bar to search topics within iLink Order Entry.

Testing and Certification

iLink and Order Entry certification suites are available in AutoCert+. Certifications are required for customers connecting to the following systems.

For more information, contact Certification Support for Electronic Trading (CSET).

The iLink order entry topic consists of:

To avoid client systems impacts, CME Group recommends that client systems NOT submit iLink messages containing FIX tags that are not defined in the iLink message specification.