Specifications

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Cisco ONS 15327 Product Overview, R3.3
June 2002
Cisco ONS 15327 Product Overview
Cisco Transport Controller
card of the same type (for example, two OC-48 cards) can be paired for protection.
If the working card fails, the protect card takes over. 1+1 span protection can be
either revertive or non-revertive.
Linear Automatic Protection Switching
The ONS 15327 supports non-revertive, unidirectional or bidirectional, 1+1 linear
automatic protection switching (APS) as the default mode for switching
architecture. APS switches the signal from the working card to the protect card
automatically when a failure occurs. Non-revertive switching does not switch the
signal back automatically when the working card comes back online.
Revertive Switching
The ONS 15327 supports revertive switching. When a failure occurs and APS
switches the signal from the working card to the protect card, revertive switching
automatically switches the signal back to the working card when the working card
comes online. You can easily provision revertive switching using CTC.
Cisco Transport Controller
Cisco Transport Controller (CTC) is a software program that is automatically
downloaded from the XTC card to your computer when you connect to the ONS
15327. CTC gives you control of Operation, Administration, Maintenance, and
Provisioning (OAM&P) activities for the ONS 15327 using Netscape Navigator
or Microsoft® Internet Explorer.
Graphical User Interface
The CTC graphical user interface (GUI), also called the CTC window, provides
three primary views, or modes, that include:
• Network View–provides information about the ONS 15327 network and
displays a graphic of the United States with ONS 15327 nodes represented by
colored icons. You can perform network management tasks in this view. CTC