OSPF (Open Shortest Path First) is a widely used intra-domain routing protocol in IP networks. Processing delays in OSPF implementations impact the time needed for both intra-domain and inter-domain routing to reconverge after a topology change. In this paper we introduce a performance index, referred to as the switching time, allowing the router reconverge to be characterized when network topology changes occur. We propose a test methodology in order to measure the introduced performance index in router realized with the Personal Computer hardware and equipped with Quagga, the most used open routing software. An optimization of the Quagga routing software has been performed and better performance has been obtained in terms of switching time.

Switching Time Measurement and Optimization Issues in GNU Quagga Routing Software / Eramo, Vincenzo; Listanti, Marco; Cianfrani, Antonio. - ELETTRONICO. - (2005), pp. 727-732. (Intervento presentato al convegno IEEE Global Telecommunications Conference (GLOBECOM 05) tenutosi a St. Louis (USA) nel 28 Novembre-2 Dicembre 2005) [10.1109/GLOCOM.2005.1577736].

Switching Time Measurement and Optimization Issues in GNU Quagga Routing Software

ERAMO, Vincenzo;LISTANTI, Marco;CIANFRANI, Antonio
2005

Abstract

OSPF (Open Shortest Path First) is a widely used intra-domain routing protocol in IP networks. Processing delays in OSPF implementations impact the time needed for both intra-domain and inter-domain routing to reconverge after a topology change. In this paper we introduce a performance index, referred to as the switching time, allowing the router reconverge to be characterized when network topology changes occur. We propose a test methodology in order to measure the introduced performance index in router realized with the Personal Computer hardware and equipped with Quagga, the most used open routing software. An optimization of the Quagga routing software has been performed and better performance has been obtained in terms of switching time.
2005
IEEE Global Telecommunications Conference (GLOBECOM 05)
Open Source Code; Routing Software Quagga; Open Shortest Path First; Dijkstra’s algorithm; Binary Heap
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Switching Time Measurement and Optimization Issues in GNU Quagga Routing Software / Eramo, Vincenzo; Listanti, Marco; Cianfrani, Antonio. - ELETTRONICO. - (2005), pp. 727-732. (Intervento presentato al convegno IEEE Global Telecommunications Conference (GLOBECOM 05) tenutosi a St. Louis (USA) nel 28 Novembre-2 Dicembre 2005) [10.1109/GLOCOM.2005.1577736].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/381508
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