Cisco Cisco ONS 15454 M12 Multiservice Transport Platform (MSTP) Mode D'Emploi

takes several minutes depending on the bandwidth of the connection between your workstation and ONS 
15454, 15454-M2, or 15454-M6. For example, JAR files downloaded from a modem or a data 
communications 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. After the node view appears, you can upgrade CTC by using the Tools > 
Update CTC menu option. 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. 

Upgrading the CTC software will overwrite your existing software. You must restart CTC after the 
upgrade is complete.

To connect to ONS 15454, 15454-M2, or 15454-M6 using CTC, you enter the IP address in the URL 
field of Microsoft Internet Explorer. After connecting to ONS 15454, 15454-M2, or 15454-M6, the 
following occurs automatically:

A CTC launcher applet is downloaded from the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE card 
to your computer.

The launcher determines whether your computer has a CTC release matching the release on the 
TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE card. 

If the computer does not have CTC installed, or if the installed release is older than the 
TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE card’s version, the launcher downloads the CTC 
program files from the TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE card.

The launcher starts CTC. The CTC session is separate from the web browser session, so the web 
browser is no longer needed. Always log into nodes having the latest software release. If you log 
into an ONS 15454, 15454-M2, or 15454-M6 that is connected with older versions of CTC, or to 
Cisco ONS 15327s or Cisco ONS 15600s, CTC files are downloaded automatically to enable you to 
interact with those nodes. The CTC file download occurs only when necessary, such as during your 
first login. You cannot interact with nodes on the network that have a software version later than the 
node that you used to launch CTC.

Each ONS 15454, 15454-M2, or 15454-M6 can handle up to five concurrent CTC sessions. CTC 
performance can vary, depending upon the volume of activity in each session, network bandwidth, and 
TCC2/TCC2P/TCC3/TNC/TNCE/TSC/TSCE card load.

You can also use TL1 commands to communicate with ONS 15454, 15454-M2, or 15454-M6 through 
VT100 terminals and VT100 emulation software, or you can telnet to ONS 15454, 15454-M2, or 
15454-M6 using TL1 ports 2361 and 3083. Refer to the Cisco ONS SONET TL1 Command Guide or 
Cisco ONS SDH TL1 Command Guide for a comprehensive list of TL1 commands.