Connection availability analysis of span-restorable mesh networks
نویسندگان
چکیده
منابع مشابه
Availability analysis of span-restorable mesh networks
The most common aim in designing a survivable network is to achieve restorability against all single span failures, with a minimal investment in spare capacity. This leaves dual-failure situations as the main factor to consider in quantifying how the availability of services benefit from the investment in restorability. We approach the question in part with a theoretical framework and in part w...
متن کاملMaintenance-immune Design of Span-restorable Mesh Networks
In contemplating mesh-based networking, some operators have expressed concern about the possible effects of span maintenance actions on network restorability, and hence availability. We consider this problem for span-restorable networks and provide two main advances. One is a bi-criteria optimization method that allows a controlled trade-off between the cost of spare capacity and the reduction ...
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We study the total capacity requirements of span-restorable mesh network designs as the percentage of all possible dual failure combinations incident on a common node is increased. Our interest is in questions such as: Are there any guidelines or insights as to how many such SRLGs can be sustained before the capacity penalty becomes severe? Can we diagnose which SRLGs are the most limiting to o...
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We propose a refinement to existing methods for span-restorable mesh capacity design to increase the capacity efficiency on sparse facility graphs. The resultant designs comprise a special class of restorable network that is intermediate between pure span restoration and path restoration. Most of the efficiency of path restoration is achieved by targeting chain sub-networks that ordinarily requ...
متن کاملQuantitative Comparison of End-to-end Availability of Service Paths in Ring and Mesh-restorable Networks
A comparison of ring and mesh architectures for restorable transport networking is presented from the point of view of service path availability. The comparison is based on detailed simulations of the network’s response to random sequences of failures and repairs. Each type of network serves the same demands and are tested with exact implementations of the two restoration mechanisms in the face...
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ژورنال
عنوان ژورنال: Photonic Network Communications
سال: 2007
ISSN: 1387-974X,1572-8188
DOI: 10.1007/s11107-007-0062-5