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Logon Process with Failover

The purpose of this test is to verify that client system can support primary gateway enforcement. In the event of a Drop Copy 4.0 failover, upon logon to the new primary connection, client systems will experience a significant increase (currently set to 4000) in sequence numbers (tag 34-MsgSeqNum) sent from CME Globex to the Client System. CME Group recommends that client systems request all missing messages.

For all Resend Requests, the client system can request no more than the maximum limit of 2500 messages. To recover any missed in-flight messages beyond the 2500 message range, the client system must submit multiple Resend Request (tag 35-MsgType=2) messages.

In response to the Resend Request from the client system, Drop Copy 4.0 will respond with a Gap Fill for all Administrative messages and send tag 35-MsgType35=n with tag 43-PossDupFlag=Y for business messages.

 

1. To run a Logon Process with Failover (CGW) test:

1. From the Contract drop-down, select the desired contract if the contract is not already locked.
2. Click the START TEST button.

Note: DO NOT select the START TEST button once the test process is in progress.

3. Submit a Logon (35=A) message to the primary Drop Copy connection.

4. Over the Drop Copy client application, submit a Logon (35=A) message on the backup gateway.
5. Receive and process a Logon (35=A) message.
6. Submit a Resend Request (35=2) message(s).
7. Receive a Gap Fill (35=4,123-GapFillFlag=Y) message(s).
8. Submit a Heartbeat (35=0) message.
9. Receive and process a Heartbeat message.
10. Submit a Heartbeat message.
11. Submit a Logout (35=5) message.
12. Receive and process a Logout (35=5) message.