RT info:eu-repo/semantics/conferenceObject
T1 Performance Evaluation of TI-LFA in Traffic-Engineered Segment Routing-Based Networks
A1 Roelens, L.
A1 González de Dios, Óscar
A1 Miguel Jiménez, Ignacio de
A1 Echeverry, E.
A1 Durán Barroso, Ramón José
K1 Performance evaluation
K1 Network topology
K1 Routing
K1 Reliability engineering
K1 Routing protocols
K1 Topology
K1 Delays
AB Link failures have a significant negative impact on the availability of a network and should therefore be resolved as soon as possible. Because of the slow convergence time of routing protocols upon detection of a link failure, several IP Fast ReRoute (FRR) mechanisms have been developed to overcome this problem. Recently, segment routing, which is a flexible and scalable way of doing source routing, enabled a new FRR mechanism called Topology Independent Loop-Free Alternate (TI-LFA). As the name suggests, the key feature of TI-LFA is that it guarantees a loop-free detour against any link failure in any network topology. However, typically fast responses to failures only aim to restore the loop-free connection between the affected routers and do not consider the resulting delay or impact on network congestion. This paper presents an initial study on the selected TI-LFA backup paths and their effect on the overall network performance. By means of simulation, we evaluate how efficient TI-LFA reroutes traffic for a number of traffic engineering approaches. Our results quantify the impact of different traffic engineering approaches and network loads on the performance of TI-LFA. This suggests potential directions for improving the effectiveness of TI-LFA protection in segment routing.
PB Institute of Electrical and Electronics Engineers (IEEE)
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/62310
UL https://uvadoc.uva.es/handle/10324/62310
LA eng
NO 2023 19th International Conference on the Design of Reliable Communication Networks (DRCN), Vilanova i la Geltru, Spain, 2023, pp. 1-8
NO Producción Científica
DS UVaDOC
RD 05-jun-2024