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Cisco ONS 15454 Reference Manual, R8.5.x
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Chapter 8 Cisco Transport Controller Operation
8.1.1 CTC Software Installed on the TCC2/TCC2P Card
When you upgrade CTC software, the TCC2/TCC2P cards store the new CTC version as the protect CTC
version. When you activate the new CTC software, the TCC2/TCC2P 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 by selecting the Mainte nance > Software tabs in
node view (Figure 8-1).
Figure 8-1 CTC Software Versions, Node View
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Software tab Maintenance tab