12-5
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 12      Cisco Transport Controller Operation
12.3    PC and UNIX Workstation Requirements
Note To avoid network performance issues, Cisco recommends managing a maximum of 50 nodes 
concurrently with CTC. The 50 nodes can be on a single DCC or split across multiple DCCs. Cisco does 
not recommend running multiple CTC sessions when managing two or more large networks.  
To manage more than 50 nodes, Cisco recommends using Cisco Transport Manager (CTM). If you do 
use CTC to manage more than 50 nodes, you can improve performance by adjusting the heap size; see 
the “General Troubleshooting” chapter of the Cisco ONS 15454 DWDM Troubleshooting Guide. You 
can also create login node groups; see the “Connect the PC and Log Into the GUI” chapter of the 
Cisco ONS 15454 DWDM Procedure Guide.
Table 12-2 lists the requirements for PCs and UNIX workstations. In addition to the JRE, the Java 
plug-in is also included on the ONS 15454 software CD.
ONS 15454 Release 7.2 No No Yes Yes
1
ONS 15454 Release 8.0 No No No Yes
ONS 15454 Release 8.5 No No No Yes
1. JRE 1.4.2 is the preferred version which is included in the software CD
Table 12-1 JRE Compatibility (continued)
ONS Software Release
JRE 1.2.2 
Compatible
JRE 1.3 
Compatible
JRE 1.4 
Compatible
JRE 5.0 
Compatible
Table 12-2 Computer Requirements for CTC 
Area Requirements Notes
Processor 
(PC only) 
Pentium 4 processor or equivalent  A faster CPU is recommended if your 
workstation runs multiple applications 
or if CTC manages a network with a 
large number of nodes and circuits. 
RAM 512 MB RAM or more A minimum of 1 GB is recommended if 
your workstation runs multiple 
applications or if CTC manages a 
network with a large number of nodes 
and circuits. 
Hard drive 20 GB hard drive with 100MB of free space 
required
CTC application files are downloaded 
from the TCC2/TCC2P to your  
computer. These files occupy around 
100MB (250MB to be safer) or more 
space depending on the number of 
versions in the network.
Operating 
System
 • PC: Windows 98 (1st and 2nd editions), 
Windows ME, Windows NT 4.0 with 
Service Pack 6a, Windows 2000 with 
Service Pack 3, or Windows XP with 
Service Pack 1 
 • Workstation: Solaris versions 9   or 10 
Check with the vendor for the latest 
patch/Service Pack level