Abstract
Access nodes in NGN are likely to transport voice traffic using MPLS Traffic Trunks. The traffic parameters describing a Traffic Trunk are basic to calculate the network resources to be allocated along the nodes belonging to its corresponding Label-Switched-Path (LSP).
This paper provides an analytical model to estimate the lower limit of the bandwidth that needs to be allocated to a TT loaded with a heterogeneous set of voice connections. Our model considers the effect of the Silence Insertion Descriptor (SID) frames that a number of VoIP codecs currently use. Additionally, two transport schemes are considered: VoIP and VoMPLS. The results, experimentally validated, quantify the benefits of VoMPLS over VoIP.
This work was supported in part by the Spanish SecretarÃa de Estado de Universidades y Educació n under the project number TIC2003-04784-C02-02.
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References
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Estepa, A., Estepa, R., Vozmediano, J. (2008). Traffic Trunk Parameters for Voice Transport over MPLS. In: Filipe, J., Obaidat, M.S. (eds) E-Business and Telecommunication Networks. ICETE 2006. Communications in Computer and Information Science, vol 9. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-70760-8_16
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DOI: https://doi.org/10.1007/978-3-540-70760-8_16
Publisher Name: Springer, Berlin, Heidelberg
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