TT CME Gateway System Administration Manual - Trading ...

TT Bandwidth Tester
Results
7 Troubleshooting
2. The utility then prints the IP address of each test channel and returns a
PASSED or FAILED message.
Example:
Run test for subject: CME_GLOBEX_MO_MESSAGES
Run Test For 233.119.160.1:10001 on Interface 172.20.16.210
Run Test For 233.119.160.65:100065 on Interface 172.20.28.138
. PASSED
Run test for subject: CME_ADMIN_CHANNEL
Run Test For 233.119.160.2:10002 on Interface 172.20.16.210
Run Test For 233.119.160.66:100066 on Interface 172.20.28.138
……………………………………………………….PASSED
3. The utility produces a FAILED test result when one of the following occurs:
• A problem exists with the NetworkInterface parameter setting in the
hostinfo.cfg file.
• Inability to connect to the exchange.
• No heartbeat received within 65 seconds.
Note: If the test fails, TT suggests running the tool a second time with the
-verbose option. This provides additional troubleshooting information.
The following illustrates the results the TT Bandwidth Tester writes to the
tt_fast_bandwidth.out logfile:
To interpret the TT Bandwidth Tester results:
1. The utility lists the MDP interfaces and IP addresses it listens to:
Example:
Create listener for 233.119.160.2.10002 on 172.20.16.210
Create listener for 233.119.160.66.10066 on 172.20.28.138
Create listener for 233.119.160.20.10020 on 172.20.16.210
Create listener for 233.119.160.84.10084 on 172.20.28.138
2. The utility calculates the normalized time difference between packets on the
MDP feed and the machine itself. Ideally, these latencies should be close to
zero.
3. The utility prints out information on dropped and delayed packets. A delayed
packet arrives 100 milliseconds later or more.
Example:
[2007-07-25 16:29:26.295]: CME_EQ_FUTURES: 233.119.160.142:10142:
Sequence: 429651 Packet Latency: 100ms
[2007-07-25 16:29:26.295]: CME_EQ_FUTURES: 233.119.160.142:10142:
Sequence: 429652 Packet Latency: 102ms
[2007-07-25 16:29:26.295]: CME_EQ_FUTURES: 233.119.160.142:10142:
Sequence: 429661 Packet Latency: 102ms
[2007-07-25 16:29:26.295]: CME_EQ_FUTURES: 233.119.160.206:10206:
Sequence: 429651 Packet Latency: 102ms
4. At the end of the test, the utility prints a test results summary that shows the
number of dropped and lost packets.
120 CME Gateway System Administration Manual
Trading Technologies International, Inc.