FRADIR Meets Availability
| Autor: | Alija Pasic, Lejla Pasic, Ferenc Mogyorosi, Azra Pasic |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
021103 operations research
Computer science 0211 other engineering and technologies 020206 networking & telecommunications 02 engineering and technology Blocking (statistics) Reliability engineering Network planning and design Constraint (information theory) Bandwidth allocation Path (graph theory) 0202 electrical engineering electronic engineering information engineering Bandwidth (computing) Routing (electronic design automation) Resilience (network) |
| Zdroj: | DRCN |
| DOI: | 10.1109/drcn48652.2020.1570603965 |
| Popis: | The framework FRADIR is designed to improve disaster resilience for mission-critical applications through reliable network design, regional failure modeling and protection routing. Two different failure models are jointly considered: independent random failures and regional failures, which are used to model the effects of disasters. In this paper we provide the first availability analysis of FRADIR. We examine the effect of the Spine and protection routing on end-to-end availability. In particular the 1+1 and four versions of General Dedicated Protection (GDP) are utilized to demonstrate the bandwidth allocation, blocking probability and availability trade-off. After the comprehensive availability analysis, to take control over this trade-off we introduce a novel routing method for FRADIR, called Availability Constraint FRADIR (AC-FRADIR) which not only minimizes the bandwidth cost and ensures protection against certain failure events (listed in the SRLG list), but also guarantees that after any of these failure events the remaining communication path still satisfies a certain availability level. |
| Databáze: | OpenAIRE |
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