ONS 15454, ONS 15454 M2, and ONS 15454 M6 provisioning and administration is performed using
the CTC software. CTC is a Java application that resides on the control cards:
TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE. CTC is downloaded to your workstation the first time
you log into 15454-DWDM, 15454-M2, or 15454-M6 shelf assemblies with a new software release using
the web interface. You can also log into CTC using the CTC launcher application (StartCTC.exe). Refer
to the

“Using the CTC Launcher Application to Manage Multiple ONS Nodes” section on page 19

for

more information.

CTC Software Installed on the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE Card

The CTC software is preloaded on the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE cards; therefore,
you do not need to install software on these cards. When a new CTC software version is released, use
the release-specific software upgrade document to upgrade the ONS 15454, 15454-M2, or 15454-M6
software on the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE cards.

When you upgrade the CTC software, the control cards store the new CTC version as the protect CTC
version. When you activate the new CTC software, the control cards store the older CTC version as the
protect CTC version, and the newer CTC release becomes the working version. You can view the
software versions that are installed on an ONS 15454, 15454-M2, or 15454-M6 shelf assemblies by
selecting the Maintenance > Software tabs in node view (single-shelf mode) or multishelf view
(multishelf mode).

Select the Maintenance > Software tabs in network view to display the software versions installed on all
the network nodes.

CTC Software Installed on the PC or UNIX Workstation

CTC software is downloaded from the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE cards and installed
on your computer automatically after you connect to the ONS 15454, 15454-M2, or 15454-M6 with a
new software release for the first time. Downloading the CTC software files automatically ensures that
your computer is running the same CTC software version as the
TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE cards you are accessing. The CTC files are stored in the
temporary directory designated by your computer operating system. Click the Delete CTC Cache button
to remove files stored in the temporary directory. If the files are deleted, they download the next time
you connect to ONS 15454, 15454-M2, or 15454-M6. Downloading the Java archive (JAR) files for CTC