이더넷 수동형 광가입자망에서 논리적 링크 기반의 멀티캐스팅 서비스

Logical Link-Based Multicasting Services in Ethernet Passive Optical Networks

  • 최수일 (전남대학교 전자컴퓨터공학부)
  • 발행 : 2005.11.01

초록

EPON망은 점대 다중점 구조를 가진 경제적인 가입자망 기술로 떠오르고 있다. 점대 다중점 구조는 하향 브로드캐스팅과 상향 점대점 종신을 제공하므로, EPON에서는 다중점 제어 프로토콜(MPCP)를 이용하여 점대점 에뮬레이션과 공유 LAN 에뮬레이션 기능을 제공한다. 본 논문에서는 EPON망에서 OLT와 ONU사이의 논리적 링크기반의 멀티캐스팅 또는 VLAN 서비스를 제공하기 위하여 논리적 그룹 식별자(LGID: Logical Group Identification)를 제안한다. 논리적 그룹 식별자와 더불어 프레임 설정 및 필터링 규칙을 제안함으로써 가입자별 차별화된 방송 및 멀티캐스팅 서비스 제공 방안을 제시한다. 더불어, 논리적 링크 기반의 VLAN 서비스를 제공함으로써 동일한 OLT에 연결된 ONU들을 복수의 서브 그룹으로 분리하는 방안을 제시한다.

Ethernet passive optical networks (EPONs) are an emerging access network technology which has a point-to-multipoint topology. EPONs operate point-to-multipoint in the OLT-ONU direction, and point-to-point in the ONU-OLT direction. To support point-to-point emulation and shared LAM emulation, EPONs use multi-point control protocol (MPCP). The MPCP uses logical link identification (LLID) field for frame tagging and filtering between the OLT and ONUs. In this paper, I propose logical-group identification (LGID) for logical link-based multicasting or VLAN services in EPONs. Using LGID with new frame tagging and filtering rules, EPONs support differentiated multimedia broadcasting or multicasting services. Additionally, EPONs can support logical link-based VLAN services that divides ONUs into several subsets.

키워드

참고문헌

  1. G. Pesavento and M. Kelsey, 'PONs for the Broadband Local Loop,' Lightwave, vol. 16, no. 10, pp. 68-74, September 1999
  2. G. Kramer, B. Mukherjee, and G. Pesavento, 'Ethernet PON (ePON): Design and Analysis of an Optical Access Net­work,' Photonic Network Comm., vol. 3, no. 3, pp. 307-319, July 2001 https://doi.org/10.1023/A:1011463617631
  3. M.P. McGarry, M. Maier, and M. Reisslein, 'Ethernet PONs: A Survey of Dynamic Bandwidth Allocation (DBA) Algorithms,' IEEE Communications Magazine, pp. 8-14, August 2004
  4. G. Kramer, B. Mukherjee, and G. Pesavento, 'Interleaved Polling with Adap­tive Cycle Time (IPACT): A Dynamic Band­width Distribution Scheme in an Optical Access Network,' Photonic Network Comm., vol. 4, no. 1, pp. 89-107, January 2002 https://doi.org/10.1023/A:1012959023043
  5. S.I. Choi and J.D. Huh, 'Dynamic Band­width Allocation Algorithm for Multimedia Services over Ethernet PONs,' ETRI Journal, vol. 24, no. 6, pp. 465-468, De­cember 2002 https://doi.org/10.4218/etrij.02.0202.0002
  6. G. Kramer, B. Mukherjee, S. Dixit, Y. Ye, and R. Hirth, 'Supporting Differentiated Classes of Service in Ethernet Passive Optical Networks,' Journal of Optical Networking, vol. 1, nos. 8 & 9, pp. 280-298, 2002
  7. C.M. Assi, Y. Ye, S. Dixit, and M.A. Ali, 'Dynamic Bandwidth Allocation for Quality­of-Service Over Ethernet PONs,' IEEE Journal on Selected Areas in Communica­tions, vol. 21, no. 9, pp. 1467-1477, Nov. 2003 https://doi.org/10.1109/JSAC.2003.818837
  8. S.I. Choi, 'Cyclic Polling-Based Dynamic Bandwidth Allocation for Differentiated Classes of Service in Ethernet Passive Opti­cal Networks,' Photonic Network Communi­cations, vol. 7, no. 1, pp. 87-96, January 2004 https://doi.org/10.1023/A:1027461505117
  9. J. Xie, S. Jiang, and Y. Jiang, 'A Dynamic Bandwidth Allocation Scheme for Differenti­ated Services in EPONs,' IEEE Communica­tions Magazine, pp. 32-39, August 2004
  10. F. An, H. Bae, Y. Hsueh, K. Kim, M. Rogge, and L. Kazovsky, 'A New Media Access Control Protocol Guaranteering Fairness Among Users in Ethernet-based Passive Optical Networks,' Proceeding of OFC 2003, vol. 1, pp. 134-135, March 2003
  11. G. Kramer, N.K. Singhal, and S. Dixit, 'Fair Queueing With Service Envelopes (FQSE): A Cousin-Fair Hierarchical Scheduler for Subscriber Access Networks,' IEEE Journal on Selected Areas in Communica­tions, vol. 22, no. 8, pp. 1497-1513, Octo­ber 2004 https://doi.org/10.1109/JSAC.2004.830473
  12. IEEE Standard 802.1D, Media Access Control (MAC) Bridges, 2004
  13. N. Finn, 'Two Models for IEEE 802.3ah EPONs,' IEEE 802.3ah EFM, Edinburgh, UK, May 2002: URL(http://www.ieee802.org/3/efm/ public/may02/finn_3_0502.pdf)
  14. S.I. Choi, 'Multicasting for EPON,' IEEE 802.3ah EFM, Orlando, USA, March 2004: URL(http://jwww.ieee802.org/3/efm/public/comments/d3_1/pdfs/choi_p2mp _1_0304.pdf)
  15. IEEE Standard 802.3ah$^{TM}$-2004, Ethernet in the First Mile, 2004
  16. IEEE Standard 802.1Q, Virtual LANs, 2001