Title :
Design, development and validation of an NS2 module for dynamic LSP rerouting
Author :
Adami, D. ; Callegari, C. ; Ceccarelli, D. ; Giordano, S. ; Pagano, M.
Author_Institution :
Dept. of Inf. Eng., Pisa Univ.
Abstract :
The major goal of traffic engineering (TE) is to enable efficient and reliable network operations while optimizing resource utilization and network performance. Extensions to interior gateway protocols (IGPs) are necessary since further information, such as link status and administrative policies, must be distributed among routers. The paper discusses the design and development, for the Network Simulator 2 (NS2), of a new software module to support both the CSPF algorithm and TE extensions to OSPF. This module enhances NS2 with new fundamental functionalities, such as dynamically rerouting label switched paths (LSPs), taking into account TE metrics. Finally, to assess the OSPF-TE module, we show the results of some simulations performed to evaluate the recovery time in MPLS networks
Keywords :
digital simulation; multiprotocol label switching; telecommunication computing; telecommunication network routing; telecommunication traffic; Network Simulator 2; interior gateway protocols; label switched paths; multiprotocol label switching; traffic engineering; Algorithm design and analysis; Bandwidth; Computational modeling; Computer architecture; Multiprotocol label switching; Reliability engineering; Resource management; Routing protocols; Telecommunication traffic; Tellurium;
Conference_Titel :
Computer-Aided Modeling, Analysis and Design of Communication Links and Networks, 2006 11th International Workshop on
Conference_Location :
Trento
Print_ISBN :
0-7803-9536-0
DOI :
10.1109/CAMAD.2006.1649721
