Dynamic network evolution, with examples from AT&amp;T's evolving dynamic network

Ash, Gerald R.

doi:10.1109/35.391435

Cited by 32 publications

(13 citation statements)

References 15 publications

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“…Research on dynamic routing in international networks has been a subject of great study since the initial years of telecom globalization [20]. Here, call routing is frequently altered according to the status of the network or anticipated demand shifts so that the network can respond aptly.…”

Section: Related Workmentioning

confidence: 99%

Dynamic traffic engineering for mixed traffic on international networks

2008

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Section: Related Workmentioning

confidence: 99%

Dynamic traffic engineering for mixed traffic on international networks

2008

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“…Similar care is needed in making routing decisions in a heterogeneous VP environment. There is much research and experience with routing policies in circuit-switched networks (see e.g., [1] and [7]), but one might ask if these principles will extend to multiservice networks. Routing schemes selecting the "least loaded path," e.g., real-time network routing (RTNR) of AT&T [ 1 ], can be useful in single service networks because they tend to balance the traffic load across the network and minimize the blocking probability (see, e.g., [8] and [12]).…”

Section: Introductionmentioning

confidence: 99%

Statistical multiplexing and mix-dependent alternative routing in multiservice VP networks

Veciana

2000

IEEE/ACM Trans. Networking

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Abstract--We consider problems in traffic integration and routing for virtual path (VP)-based multiservice networks. The objective is to exploit statistical multiplexing among various traffic types in order to improve system utilization. Difficulties arise due to statistical multiplexing since a connection's bandwidth requirement depends on the characteristics of the interfering traffic. We first consider whether segregating heterogeneous traffic with different quality of service (QoS) requirements on separate VP's is desirable. Next we consider routing heterogeneous permanent connections given a predefined traffic type mix onto multiple VP's between a source destination pair. We show that it is not necessarily advantageous to have each VP carry every traffic type. In fact, perhaps surprisingly, an optimum solution to this problem suggests that only a small number of traffic types, or even homogeneous traffic, need be present on each VP. Based on this observation, we propose a simple alternative routing algorithm with routing sequences depending on the traffic mix.

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“…In the case of a wavelength interchanging network, the LLR algorithm is similar to the real time network routing (RTNR) algorithm used in telephone networks [54]. With the LLR algorithm in a WS network, the route-wavelength pair that maximizes the residual capacity over all wavelengths and over shortest paths is selected jointly, i.e., LLR chooses the route-wavelength pair that achieves where and were defined above.…”

Section: ) Routing and Wavelength Selection Algorithmsmentioning

confidence: 99%

Performance of WDM transport networks

Karasan

Ayanoğlu²

1998

IEEE J. Select. Areas Commun.

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Abstract-Wavelength division multiplexed point-to-point transport is becoming commonplace in wide area networks. With the expectation that the next step is end-to-end networking of wavelengths (in the optical domain without conversion to electronics), there is a need for new design techniques, a new understanding of the performance issues, and a new performance evaluation methodology in such networks. This paper describes approaches to that end, summarizes research results, and points to open problems.

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Dynamic network evolution, with examples from AT&T's evolving dynamic network

Cited by 32 publications

References 15 publications

Dynamic traffic engineering for mixed traffic on international networks

Dynamic traffic engineering for mixed traffic on international networks

Statistical multiplexing and mix-dependent alternative routing in multiservice VP networks

Performance of WDM transport networks

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