대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

NG-SDH 기반 전송 시스템에서의 연결제어 기능 설계

A Functional Design of Connection Control in the NG-SDG based Transport System

  • 발행 : 2003.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 NG-SDH(Next Generation - Synchronous Digital Hierarchy) 기반 전송 시스템(이하 NG-SDH 시스템)에서 광네트워크 제어방식의 전반적인 절차를 수행하는 연결제어 기능에 대한 설계과정을 기술한다. 여기서 NG-SDH는 물리적인 SDH 링크 단위(STM-1, STM-4, STM-16, STM-64, STM-256 등)로만 연결제어가 가능한 기존의 기술과는 달리 트래픽량의 증감에 따라 VC-3(약 50M) 및 VC-4(약 150M) 단위의 SDH 타임슬롯을 자동으로 연결제어를 수행할 수 있는 차세대 SDH 기술을 의미한다. 이러한 NG-SDH 기반 연결제어 기능을 통해 인그레스 NG-SDH 시스템에서 다양한 SDH 및 이더넷 라인카드들의 트래픽을 프로비젼형(PC, Permanent Connection), 반교환형(SPC, Soft Permanent Connection), 그리고 교환형(SC, Switched Connection) 연결 유형에 따라 적절한 연결 설정이 이루어진다.

The paper describes a design process of the connection control function that performs overall procedures of optical network control system in the Next Generation - Synchronous Digital Hierarchy (NG-SDH) based transport system. Here, the NG-SDH means a new SDH technology that could perform automatic connection control with a granularity of VC-3 (about 50M) or VC-4 (about 150M) according to the increase and decrease of traffic, which is different from the existing technology that could perform connection control only with a granularity of a physical SDH link (STM-l, STM-4, STM-16, STM-64, STM-256 etc). The NG-SDH based connection control allows an ingress NG-SDH node to control the appropriate connection establishment process according to connection types such as Permanent Connection (PC), Soft Permanent Connection (SPC), Switched Connection (SC) over various SDH and Ethernet line cards.

키워드

참고문헌

  1. OIF, 'UNI 1.0Signaling Specification,' oif 2000.125.7, Oct. 2001
  2. OIF, 'Interim NNI Specification,', oif2002.025.01, April. 2002
  3. IETF, 'Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions,' rfc3473, Jan. 2003
  4. ITU-T, 'Requirements for Automatic Switched Transport Networks(ASTN),' G.807, Jul. 2001
  5. YoungHwa Kim, Kwangjoon Kim, JongHyun Lee, JaeCheol Ryou, 'Functional Structure of Control Plane for the Intelligent Optical Internet,' COIN+PS2002 Proceeding, Jul. 2002, pp. 268-270
  6. IETF, 'Generalized Multi-Protocol Label Switching (GMPLS) Architecture,' draft-ietf-ccarnp-gmpls-architecture-07.txt, May. 2003
  7. IETF, 'Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description,' rfc3471, Jan. 2003
  8. IETF, 'SONET/SDH Encoding for Link Management Protocol (LMP) Test messages,' draft-ietf-ccamp-lmp-test-sonet-sdh-03.txt, May 2003
  9. D. Cavendish, Su-Hun Yun, O. Matsuda, K Murakami, M Nishihara, 'New transport services for next generation SONET/SDH Systems,' IEEE Communication Magazine, May. 2002, pp. 80-87 https://doi.org/10.1109/35.1000217
  10. ETF, 'Link Management Protocol(LMP),' draft-ietf-ccamp-lmp-07.txt, Nov. 2002
  11. IETF, 'Generalized Multi-Protocol Label Switching Extensions for SONET and SDH Control,' draft-ietf-ccamp-grnpls-sonet-sdh-08.txt, Feb. 2003