Cisco 15454-MR-L1-34.2= Datenbogen
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Figure 5
Protected DWDM Line Configuration
Flow-Through Timing
The transponder card allows timing to “flow through” from client to DWDM line optical interfaces. Recovered receiver timing from one
interface (client or line) is used to time the other transmitter interface (line or client). This enables the transported signal to remain independent
from the node timing.
Management
The Cisco ONS 15454 provides comprehensive management capabilities to support the operations, administration, monitoring, and
provisioning (OAM&P) capabilities through the integrated Cisco Transport Controller craft interface with support from the Cisco Transport
Manager element management system (EMS). The 2.5G transponder card incorporates provisionable G.709 functions for all 3R service
interfaces. G.709 functionality enables a carrier transporting a service transparently to identify network impairments that may degrade the
transported signal and exceed SLA requirements. The general communication channel (GCC) of the G.709 provides a separate communications
channel on a per-wavelength basis for the transparently transported service channels, as compared with the section data communication
channel/regenerator section data communications channel (SDCC/RSDCC) in SONET/SDH signals. This GCC enables the Cisco ONS 15454
to extend its advanced network autodiscovery capabilities to DWDM-based services. For SONET/SDH services, when termination mode is
used, SDCC can be used to enable similar function on the Cisco ONS 15454 SONET/SDH network element, allowing the capabilities to
manage both SONET/SDH and DWDM networks at the same time. The integrated Cisco ONS 15454 Cisco Transport Controller craft manager
as well as the complementary Cisco Transport Manager EMS provide the user access for OAM&P for the system.