State- and time-dependent routing in the NTT network |
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| Authors: | Kawashima K Inoue A |
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| Affiliation: | Network Traffic Lab., NTT Telecommunication Networks Labs., Japan; |
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| Abstract: | The purpose of state- and time-dependent routing (STR) is to achieve high performance despite unpredictable real-time traffic fluctuations, with minimum changes to existing switching software and operations systems. STR uses an appropriate combination of the two kinds of control, centralized and distributed. The article gives an overview of STR and its advanced call-level routing, describes the current STR network and the performance of STR with two examples from the NTT network, and addresses a dimensioning method for STR |
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