Datasheet

8-3
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 8 Cisco Transport Controller Operation
8.1.2 CTC Software Installed on the PC or UNIX Workstation
Figure 8-2 CTC Software Versions, Network View
8.1.2 CTC Software Installed on the PC or UNIX Workstation
CTC software is downloaded from the TCC2/TCC2P cards and installed on your computer automatically
after you connect to the ONS 15454 SDH 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 cards you are accessing. The computer CTC software files are stored in the
temporary directory designated by your computer’s operating system. You can use 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 an ONS 15454 SDH. Downloading the Java archive files, called “JAR” files,
for CTC takes several minutes depending on the bandwidth of the connection between your workstation
and the ONS 15454 SDH. For example, JAR files downloaded from a modem or a data communication
channel (DCC) network link require more time than JAR files downloaded over a LAN connection.
During network topology discovery, CTC polls each node in the network to determine which one
contains the most recent version of the CTC software. If CTC discovers a node in the network that has
a more recent version of the CTC software than the version you are currently running, CTC generates a
message stating that a later version of the CTC has been found in the network and offers to install the
CTC software upgrade. If you have network discovery disabled, CTC will not seek more recent versions
of the software. Unreachable nodes are not included in the upgrade discovery.
Note Upgrading the CTC software will overwrite your existing software. You must restart CTC after the
upgrade is complete.