← Back to X_TRADER® Help Library

LSE Gateway Documentation

Verifying Connectivity


To complete the LSE Gateway installation, LSE may request that you pass several connectivity tests with LSE’s host machines. The customer must schedule specific dates and times with LSE to perform these tests:

  • Ping and Telnet Tests
  • Price Server Startup Test

You perform these tests after configuring the TT Gateway (e.g., with NT User information, product tables, etc.), but before starting TTChron (refer to TT Gateway Architecture SAM Version 7.X).

Once you complete all tests with the LSE, start TTChron; this service starts your Gateway as scheduled in ttchron.ini.


If this is a new membership (i.e., new TT customer), no one can trade through the TT Gateway until you successfully complete these tests.

Ping Tests

Perform the ping and telnet tests to verify network connectivity to the LSE host servers.

The LSE distributes SAIL IP addresses that you must ping (labeled IPAddress in the procedure below). The LSE usually sends this information via e-mail to their customers. There are two types of IP addresses that you may need to test (each type usually consists of a pair of IP addresses):

  • TCP Replay Host
  • Host Server IP addresses: Host Server IP Addresses are the IP addresses configured in the Order Server sections ([OrderServerSession_#]) of the hostinfo.cfg file. These IP Addresses provide access to the SAIL trading engine for order submission.

A ping test fails if the command window states the request has timed out.

To ping LSE exchange host servers:

  1. Open a command window.
  2. Type: ping IPAddress1
  3. Type: ping IPAddress2

To troubleshoot ping connectivity:

  1. If you are unable to ping any of the machines at LSE, verify that your network setup is correct. If your network is set up correctly, call LSE.
  2. If you can connect to one but not the other IP address, call LSE. The problem is most likely on their end.

Telnet Tests

LSE distributes two SAIL order management IP addresses with its associated ports. TT recommends that you telnet these locations to test their status (respectively labeled IPAddress and Port in the procedure below). LSE usually sends this information via e-mail to their customers.

To telnet LSE:

  1. Open a command window.
  2. Type: telnet IPAddress1 Port
  3. Type: telnet IPAddress2 Port

    The telnet test fails if you receive a Connection Failed prompt box.

Testing Price Server Setup

For best results, execute this test while the Price Server is running, and not outside of the default TTChron hours.

To start the Price Server:

  1. If TTChron is configured to shut down the Price Server during the time that you run this test, stop the TTChron service.

    For this procedure, refer to the TT Gateway Architecture SAM Version 7.X.

  2. From the Start menu, point to Settings, and then click Control Panel.
  3. Double-click Administrative Tools.

    The Administrative Tools window displays.

  4. Double-click Services.

    The Services window displays.

  5. Scroll through the Services window to locate TT Price Server.
  6. Right-click TT LSE Price Server, and then click Start.

    After about thirty seconds, the Price Server in Guardian should display as green.

To troubleshoot connection problems:

  1. Run the TT Listen tool to verify whether the connection is working.
  2. Check the command window or:
    • Make sure that the command is pointing to the correct file.
    • If you see the text “Connected” followed by the text “Disconnected”, notify the LSE. They will need to assist you in diagnosing the cause of this error.