Point-to-Multipoint Services and Hierarchical QoS on PBB-TE System 


Vol. 37,  No. 6, pp. 433-442, Jun.  2012


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  Abstract

We have proposed a solution to multicast services and an advanced quality of service (QoS) mechanism on a packet transport system (PTS) based on PBB-TE. The point-to-multipoint (PtMP) connection in the PBB-TE system have been realized by grouping point-to-point (PtP) PTL trunks and mapping a BSI onto the PtP PTL trunks using a multicast backbone destination address. To provide end-to-end QoS of the PtMP services, the hierarchical QoS scheme for backbone service instances and connection-oriented paths has been implemented in the PTS. For providing different capabilities for service selection and priority selection, the PTS offers to customers three basic types of the port-based, C-tagged, and S-tagged service interface defined by the IEEE 802.1ah. To offer to customers different capabilities of the layer 3 applications and services, moreover, an IP-flow service interface have been added. In order to evaluate traffic performance for PtMP services in the PTS, the PtMP throughputs for the link capacity of 1 Gbps at the four service interfaces were measured in the leaves of the ingress edge node, the transit node, and the egress edge node. The throughputs were about 96 % because the B-MAC overhead of 22 bytes occupies 4 % of the 512-byte packet. The QoS performance is ability to guarantee an application or a user a required bandwidth, and could be evaluated by the accuracy of policing or shaping. The accuracy of the policing scheme and the accuracy of the shaping scheme were 99 % and 99.3 % respectively.

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  Cite this article

[IEEE Style]

W. Lee, C. Choi, S. Kim, "Point-to-Multipoint Services and Hierarchical QoS on PBB-TE System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 6, pp. 433-442, 2012. DOI: .

[ACM Style]

Wonkyoung Lee, Chang-Ho Choi, and Sun-Me Kim. 2012. Point-to-Multipoint Services and Hierarchical QoS on PBB-TE System. The Journal of Korean Institute of Communications and Information Sciences, 37, 6, (2012), 433-442. DOI: .

[KICS Style]

Wonkyoung Lee, Chang-Ho Choi, Sun-Me Kim, "Point-to-Multipoint Services and Hierarchical QoS on PBB-TE System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 6, pp. 433-442, 6. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880