March 2004
Intermediate to advanced
840 pages
21h 45m
English
Content preview from Optical Network Design and ImplementationBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
The Synchronous Optical Network or SONET/SDH forms the backbone of many service provider and carrier networks. SONET/SDH is used as a Layer 1.5 TDM transport mechanism for voice and data. Legacy SONET/SDH networks use add/drop multiplexers (ADMs) that add or drop OC-N or STM-N circuits between ADM nodes on the ring. MSPPs integrate ADM, DACS, and Ethernet switching functionality within the device. The MSPP can provide private line TDM services, ATM services, 10/100/1000-Mbps Ethernet services, and Multiprotocol Label Switched (MPLS) IP-routed services. DWDM uses multiple channels or wavelengths to transmit signals over a single optical fiber. DWDM maximizes the use of installed fiber cable and allows new services to be quickly and easily ...
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