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http://dx.doi.org/10.5573/ieie.2014.51.10.034

Reliable Methods of Interoperability between Packet Transport Networks and IP Networks  

Lee, Kwang-Koog (Institute of Convergence Technology Infra R&D Laboratory)
Lee, Hosong (Institute of Convergence Technology Infra R&D Laboratory)
Lee, Youngwuk (Institute of Convergence Technology Infra R&D Laboratory)
Jeong, Kitae (Institute of Convergence Technology Infra R&D Laboratory)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.10, 2014 , pp. 34-40 More about this Journal
Abstract
With the economical data service delivery, the packet transport network (PTN) technologies have emerged as an important player in the next-generation transport networks. As the PTN continues to make such considerable progress, it is being challenged by network providers who need rapid and reliable recovery capabilities to guarantee the availability of their services. This paper introduces several fault detection mechanisms for a client signal failure in packet transport networks and proposes a reliable transmission method of IP flows from routers using the combination of Ethernet services. Based on the first fault detection methods, client signal fault is detected within tens or hundreds of milliseconds. It enables the client network devices to perform their own recovery processes within one second. The second mechanism enables failed Ethernet services to be bypassed via other Ethernet services over disjoint paths, so as to contribute on reducing packet loss of IP traffic.
Keywords
resiliency; packet transport network; OAM; protection switching; client signal failure;
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