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The GMPLS standardization is paving the way for the implementation of new configurable traffic engineering (TE) policies for transport networks. This paper takes aim at evaluating the effects of using bandwidth-dependent TE metrics in a centralized Path Computation System (PCS), suited for handling the routing requests in an operational transport network with a GMPLS control plane. The results of an intensive testing campaign show an evident improvement in the utilization of network resources when such TE metrics are enabled, whatever survivability requirement is imposed on the LSP (e.g. classical 1+1 protection, pre-planned or On-the-Fly restoration, etc.). Moreover, a simple policy function is suggested as a good trade-off between the achievable performance and the computing load on CPU. | The GMPLS standardization is paving the way for the implementation of new configurable traffic engineering (TE) policies for transport networks. This paper takes aim at evaluating the effects of using bandwidth-dependent TE metrics in a centralized Path Computation System (PCS), suited for handling the routing requests in an operational transport network with a GMPLS control plane. The results of an intensive testing campaign show an evident improvement in the utilization of network resources when such TE metrics are enabled, whatever survivability requirement is imposed on the LSP (e.g. classical 1+1 protection, pre-planned or On-the-Fly restoration, etc.). Moreover, a simple policy function is suggested as a good trade-off between the achievable performance and the computing load on CPU. | ||
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* [https://link.springer.com/content/pdf/10.1007%2F0-387-23178-1_27.pdf https://link.springer.com/content/pdf/10.1007%2F0-387-23178-1_27.pdf] | * [https://link.springer.com/content/pdf/10.1007%2F0-387-23178-1_27.pdf https://link.springer.com/content/pdf/10.1007%2F0-387-23178-1_27.pdf] | ||
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| + | * [http://link.springer.com/content/pdf/10.1007/0-387-23178-1_27 http://link.springer.com/content/pdf/10.1007/0-387-23178-1_27], | ||
| + | : [http://dx.doi.org/10.1007/0-387-23178-1_27 http://dx.doi.org/10.1007/0-387-23178-1_27] under the license http://www.springer.com/tdm | ||
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| + | * [https://link.springer.com/chapter/10.1007/0-387-23178-1_27 https://link.springer.com/chapter/10.1007/0-387-23178-1_27], | ||
| + | : [https://dblp.uni-trier.de/db/conf/opnetec/opnetec2004.html#CarrozzoGG04a https://dblp.uni-trier.de/db/conf/opnetec/opnetec2004.html#CarrozzoGG04a], | ||
| + | : [https://www.scipedia.com/public/Carrozzo_et_al_2006b https://www.scipedia.com/public/Carrozzo_et_al_2006b], | ||
| + | : [https://arpi.unipi.it/handle/11568/87300 https://arpi.unipi.it/handle/11568/87300], | ||
| + | : [https://rd.springer.com/chapter/10.1007/0-387-23178-1_27 https://rd.springer.com/chapter/10.1007/0-387-23178-1_27], | ||
| + | : [https://academic.microsoft.com/#/detail/1496483989 https://academic.microsoft.com/#/detail/1496483989] | ||
Latest revision as of 16:25, 21 January 2021
Abstract
The GMPLS standardization is paving the way for the implementation of new configurable traffic engineering (TE) policies for transport networks. This paper takes aim at evaluating the effects of using bandwidth-dependent TE metrics in a centralized Path Computation System (PCS), suited for handling the routing requests in an operational transport network with a GMPLS control plane. The results of an intensive testing campaign show an evident improvement in the utilization of network resources when such TE metrics are enabled, whatever survivability requirement is imposed on the LSP (e.g. classical 1+1 protection, pre-planned or On-the-Fly restoration, etc.). Moreover, a simple policy function is suggested as a good trade-off between the achievable performance and the computing load on CPU.
Original document
The different versions of the original document can be found in:
- http://dx.doi.org/10.1007/0-387-23178-1_27 under the license http://www.springer.com/tdm
Document information
Published on 01/01/2006
Volume 2006, 2006
DOI: 10.1007/0-387-23178-1_27
Licence: CC BY-NC-SA license
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