%0 Conference Proceedings %T Permutation Routing for Increased Robustness in IP Networks %+ Simula Research Laboratory [Lysaker] (SRL) %A Vo, Hung, Quoc %A Lysne, Olav %A Kvalbein, Amund %Z Part 5: IP Routing %< avec comité de lecture %( Lecture Notes in Computer Science %B 11th International Networking Conference (NETWORKING) %C Prague, Czech Republic %Y Robert Bestak %Y Lukas Kencl %Y Li Erran Li %Y Joerg Widmer %Y Hao Yin %I Springer %3 NETWORKING 2012 %V LNCS-7289 %N Part I %P 217-231 %8 2012-05-21 %D 2012 %R 10.1007/978-3-642-30045-5_17 %K IP networks %K Multipath Routing %K Resilience %K Fault-tolerant %Z Computer Science [cs] %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X We present Permutation Routing as a method for increased robustness in IP networks with traditional hop-by-hop forwarding. Permutation Routing treats routers involved in traffic forwarding as a sequence of resources, and creates permutations of these resources that give several forwarding options. We introduce Permutation Routing as a concept, and use it to create routings where we seek to maximize single link fault coverage. Analogous to the IETF standardized Loop-Free Alternate (LFA), Permutation Routing can easily be implemented for OSPF or IS-IS networks to augment existing ECMP forwarding with additional loop-free forwarding entries for improved load balancing or fault tolerance. Our evaluations show that Permutation Routing can increase single link fault coverage by up to 28% compared to LFA in inferred network topologies. %G English %Z TC 6 %2 https://inria.hal.science/hal-01531134/document %2 https://inria.hal.science/hal-01531134/file/978-3-642-30045-5_17_Chapter.pdf %L hal-01531134 %U https://inria.hal.science/hal-01531134 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-TC6 %~ IFIP-LNCS-7289 %~ IFIP-NETWORKING