OSPF and BGP State Migration for Resource-Portable IP Router

Kamamura, Shohei; Mori, Hiroki; Shimazaki, Daisaku; Genda, Kouichi; Uematsu, Yoshihiko

doi:10.1109/glocom.2015.7417079

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Furthermore, if routers hold a simple IGP such as open shortest path first (OSPF), the IGP status of working router can easily duplicated on the secondary router, by copying the signals including OSPF messages from adjacent routers to the working router and inserting them into the secondary router while blocking the signals from the secondary router to the adjacent routers [78]. Therefore, if copying or protectionswitching points can be flexibly deployed across an optical transport network, the IGP status of working router can be easily duplicated on routers for renovation or temporal use, and service traffic can be migrated to them without service interruption, IP topology change, and additional interfaces on adjacent routers.…”

Section: Deployment and Extension Cyclementioning

confidence: 99%

Future Nationwide Optical Network Architecture for Higher Availability and Operability Using Transport SDN Technologies

Uematsu¹,

Kamamura²,

Date³

et al. 2018

IEICE Trans. Commun.

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SUMMARY An optical transport network is composed of optical transport systems deployed in thousands of office-buildings. As a common infrastructure to accommodate diversified communication services with drastic traffic growth, it is necessary not only to continuously convey the growing traffic but also to achieve high end-to-end communication quality and availability and provide flexible controllability in cooperation with service layer networks. To achieve high-speed and large-capacity transport systems cost-effectively, system configuration, applied devices, and the manufacturing process have recently begun to change, and the cause of failure or performance degradation has become more complex and diversified. The drastic traffic growth and pattern change of service networks increase the frequency and scale of transport-capacity increase and transport-network reconfiguration in cooperation with service networks. Therefore, drastic traffic growth affects both optical-transport-system configuration and its operational cycles. In this paper, we give an overview of the operational problems emerging in current nationwide optical transport networks, and based on trends analysis for system configuration and network-control schemes, we propose a vision of the future nationwide optical-transport-network architecture expressed using five target features.

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Section: Deployment and Extension Cyclementioning

confidence: 99%