Prototipo para la Evaluación de Calidad de Servicio Mediante Técnicas de Encolamiento en Ambientes de Backbone

Prototype For Quality Of Service Evaluation By Means Of Queueing Techniques In Backbone Environments

  • Lilia Edith Aparicio Pico Universidad Central de las Villas y Universidad Distrital Francisco José de Caldas
  • Velssy Liliana Hernández Riaño Universidad Distrital Francisco José de Caldas y Universidad de Cordoba
  • Fredy A. Sierra Hernández Universidad Distrital Francisco José de Caldas
Keywords: Calidad de servicio, encolamiento, OPNET, servicios diferenciados, simulación, redes troncales (es_ES)

Abstract (es_ES)

El costo en infraestructura y acceso a tecnologías emergentes en redes de telecomunicaciones, hizo necesario disponer de un planteamiento de evaluación de Calidad de Servicio utilizando mecanismos de encolamiento basado en simulación. El objetivo en este artículo fue evaluar diferentes técnicas de encolamiento modeladas bajo diversos escenarios de campus de redes backbone, para comparar su desempeño usando la herramienta de simulación OPNET. La evaluación apuntó hacia la medición de variables claves en el desempeño de la red como retraso, pérdida de paquetes y variación del retraso (jitter), entre otras. Son presentados aquí los resultados obtenidos en la utilización de éstos mecanismos al momento de otorgar diferenciación a tráficos sensibles a factores de congestión presentes en las redes IP, tales como tráfico en tiempo real; obteniendo un significativo mejoramiento en el desempeño de la red.

Abstract (en_US)

The cost in infraestructure and access to emerging technologies on telecommunications networks, made necessary to have a mechanisms the quality of service assessment using queuening based. Objective in this article was evaluate different technical modeled various scenes of campus backbone network, in order to compare his performance using the tool of simulation OPNET. The evaluation aimed to the measurement of keys variables in the performance networks like delay, packet loss and jitter, among others. Are show here the results once these were gotten from utilization mechanism when granting differentiation to sensitive traffics to present factors of congestion in IP networks, such like traffic in real time; collecting a significant improvement in the network performance.


Download data is not yet available.


Zefeng Nia, Zhenzhong Chena, King Ngi Ngana, A real-time video transport system for the best-effort Internet. Signal Processing: Image Communication 20 (2005) pag. 277­ 29.

Aurelio La Corte, Sabrina Sicari, Assessed quality of service and voice and data integration: A case study. Computer Communications 29 (2006) pag. 1992­2003.

Spyridon L. Tompros, Spyridon Denazis, Interworking of heterogeneous access networks and QoS provisioning via IP multimedia core networks. Computer Networks 52 (2008) pag. 215­227.

Hans van den Berg, Michel Mandjes, Remco van de Meent, QoS-aware bandwidth provisioning for IP network links. Computer Networks 50 (2006) 631­647.

J.B. Pippas, I.S Venieris, Appling delay random early detection to IP gateways. Computer Communications 24 (2001) pag. 1370­1379.

Christos Bouras, Afrodite Sevasti, An analytical QoS service model for delay-based differentiation. Computer Networks 51 (2007) pag. 3549­3563.

Sheau-Ru Tong, Chun-Cheng Chang, Harmonic DiffServ: Scalable support of IP multicast with Qos heterogeneity in DiffServ backbone networks. Computer Communications 29 (2006) pag. 1780­1797.

Athina Markopouloua, Fouad Tobagib, Mansour Karamb, Loss and Delay Measurements of Internet Backbones. Computer Communications 29 (2006) pag. 1590­1604.

A. Bak, W. Burakowski, F. Ricciato, S. Salsano, H. Tarasiuk, A framework for providing differentiated QoS guarantees in IP-based network. Computer Communications 26 (2003) pag. 327­337.

S. Georgoulas, P. Trimintzios, G. Pavlou, K. Ho, An integrated bandwidth allocation and admission control framework for the support of heterogeneous real-time traffic in class-based IP networks. Computer Communications 31 (2008) pag. 129­152.

Vitalio Alfonso Reguera, Félix F. Álvarez Paliza, Walter Godoy Jr., Evelio M. García Fernández, On the impact of active queue management on VoIP quality of service. Computer Communications 31 (2008) pag 73­87.

Eun-Hee Cho, Kang-Sik Shin, Sang-Jo Yoo, SIP-based Qos support architecture and session management in a combined IntServ and DiffServ networks. Computer Communications 29 (2006) pag. 2996­3009.

Irfan Awan, Shakeel Ahmad, Bashir Ahmad, Performance analysis of multimedia based web traffic with QoS constraints. Journal of Computer and System Sciences 74 (2008) pag. 232­242.

Sergio Herrería-Alonso, Andrés Suarez-González, Manuel Fernández-Veiga, Raúl F. Rodríguez-Rubio, Cándido López-García, Improving aggregate flow control in differentiated services networks. Computer Networks 44 (2004) pag. 499­512.

Irfan Awan, Shakeel Ahmad, Bashir Ahmad, Performance analysis of multimedia based web traffic with QoS constraints. Journal of Computer and System Sciences 74 (2008) pag. 232­242.

K. Salah, P. Calyam, M.I. Buhari, Assessing readiness of IP networks to support desktop videoconferencing using OPNET. Journal of Network and Computer Applications, Article in Press.

The QoS Forum.

W. Almesberger. Scalable Resource Reservation for the Internet. PhD thesis, EPFL, Nov 1999.

T. Ferrari. QoS Support for Integrated Networks. PhD thesis, University of Bologna, Nov 1998.

S. Blake, D. Black, M. Carlson, E. Davies, Z. Wang, and W. Weiss. An Architecture for Differentiated Services. RFC 2475, IETF Network Working Group, December 1998.

R. Braden, D. Clark, and S. Shenker. Integrated Services in the Internet Architecture: an Overview. RFC 1633, ISI, MIT and PARC, June 1994.

IETF. Integrated Services (Intserv) working group.

J. Wroclawski, "Specification of controlled-load network element service". RFC 2211, Sept. 1997

S.Shenker, C:Partridge, and R.Guerin, "Specification of guaranteed quality of service". RFC 2212, Sept 1997.

R.Braden, L.Zhang, S.Berson, S.Herzog, and S.Jamin, "Resource reservation protocol (RSVP)-Version 1, functional specification". RFC 2205, Sept 1997

Garcia, L. "Communications Networks", Ed. McGraw Hill, 2000.

Gene Gaines, Marco Festa, A survey of RSVP/QoS Implementations. RSVP Working Group, July 1998.


K. Nichols, S. Blake, F. Baker, and D. Black. Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers. RFC 2474, IETF Network Working Group, December 1998

Kucheria, Amit P. "Scalable Emulation of IP Networks through Virtualization", Tesis de Maestria, Universidad de Kansas, 2003

Jun Wang, Klara Nahrstedt, Yuxin Zhou, "Design and Implement Differentiated Service Routers in OPNET". University of Illinois at Urbana-Champaign Department of Computer Science.

C. Aras, J. Kurose, D. Reeves, and H. Schulzrinne, Realtime communication in packet switched networks. Proceedings of the IEEE, vol. 82, pp. 122-139, January 1994.

S. FLoyd and V. Jacobson, Random Early Detection Gateways for Congestion Avoidanc. IEEE/ACM Transactions on Networking, 1(4), August 1993.

The ATM Forum, "Traffic Management Specification", Version 4.0, February 1996.

Stallings, William, "Redes e Internet de Alta Velocidad: Rendimiento y Calidad de Servicio". 2ªEd. Madrid, PrenticeHall, 2004

T. Ferrari: "QoS support for Integrated Networks". PhD thesis, University of Bologna, Nov 1998.

Omer Dedeo¢glu, Impacts of RED in a Heterogeneous Environment. Master thesis, Albuquerque, New Mexico May, 2003.

S. Giordano et al., "Advanced QoS Provisioning in IP Networks: The European Premium IP Projects". IEEE Commum. Mag., vol. 41, no. 1, January 2003

E. Mykoniati et al., "Admission Control for Providing QoS in Diffserv IP Networks: The Tequila Approach". IEEE Commum. Mag., vol. 41, no. 1, January 2003

T. Engel et al., "AQUILA: Adaptive Resource Control for QoS Using an IP-Based Layered Architecture". IEEE Commum. Mag., vol. 41, no. 1, January 2003

IETF Internet Draft, M. Pullen, "Expanded Simulation Models for IntServ and DiffServ with MPLS. November, 2002

M. Potts, "QoS: Quality of Service for IP networks". Del IST-2000-26418, NGN Initiative, February 2002

G. Cortese et al., CADENUS: Creation and Deployment of End-User Services in Premium IP Networks., IEEE Commum. Mag., vol. 41, no. 1, January 2003

G. Huston, "Next Steps for the IP QoS Architecture". RFC 2990, November 2000

Desire Oulai, Steven Chamberland, Samuel Pierre, Routing and admission control with multiconstrained end-to-end quality of service in MPLS networks. Computer Communication (2008)

Jason Schreiber, Mehrdad Khodai Joopari, M. A. Rashid, Performance of voice and video conferencing over ATM and Gigabit Ethernet backbone networks. Res. Lett. Inf. Math. Sci. (2005) vol. 7, pag. 19-27

How to Cite
Aparicio Pico, L. E., Hernández Riaño, V. L., & Sierra Hernández, F. A. (2006). Prototype For Quality Of Service Evaluation By Means Of Queueing Techniques In Backbone Environments. Ingeniería, 12(2), 46-61.
Published: 2006-11-30
Ciencia, investigación, academia y desarrollo