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”1+1 protection” represents one of the latest methods in MPLS networks. Such method is available for premium customers and consists in traffic duplication by two different paths, in order to prevent informational link from failure. In this article, is presented the influence of this mechanism on the quality of service (QoS). The metrics which we refer are the average and standard deviation of transfer...
Optical wavelength-division-multiplexing (WDM) networks have emerged as an ideal backbone for the dynamic transport of bandwidth-intensive applications. Most emerging applications require end-to-end survivable connections to be set up for specific time durations that have sliding or fixed setup times (such as IPTV, grid computing backup storage). It is critical for the development of future network...
This work describes a new protection schema suitable for transparent optical networks with a large number of nodes. The protection and recovery processes are described as emerging functions in a bottom-up organized network obtained by connecting a large number of autonomous 2??2 optical packet switching nodes. The links are classified into sub-domains containing only four nodes each. During an emergency...
We consider extensions of the design theory and related operating concepts to support multiple levels of Quality of Service (QoS) for priority-based traffic in a transport network that uses p-cycles as the basic protection method. The proposed integrated QoS scheme can provide appropriate transport service for various applications relating to different service categories. Notably this includes in...
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