CCITT standardization of network node interface of synchronous digital hierarchy
- 1 August 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Magazine
- Vol. 28 (8) , 15-20
- https://doi.org/10.1109/35.58880
Abstract
The main concepts and interfacing and multiplexing techniques for an NNI (network node interface) as set forth in CCITT (International Consultive Committee for Telephone and Telegraph) Recommendations are described. The objectives and history of the NNI standardization are reviewed together with concepts, basic requirements, and features of the NNI. The nine-row-based frame structure and the virtual container (VC) concept, which are the main features of the NNI, are introduced. The multiplexing principle and method, the detailed frame structure and overhead, and mapping methods related to the NNI are described. Applications of the NNI in the synchronous network and international interworking are presented. The future application of asynchronous transfer mode (ATM) is discussed.Keywords
This publication has 5 references indexed in Scilit:
- New synchronous digital transmission system with network node interfacePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Network node interface for new synchronous digital networks-concepts and standardizationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Application benefits of SONET networkingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Implementation and application of equipment with network node interfacePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- SONET: now it's the standard optical networkIEEE Communications Magazine, 1989