A centralized controller to improve fault tolerance in TRILL-based fabric networks
Fault tolerance is a challenging requirement in virtualized data centers. While distributed layer 2 routing TRILL-like protocols are robust and scalable, they still lack efficiency upon a link failure. In this paper, we propose a hybrid architecture that achieves the best tradeoff between efficiency of centralized architectures and robustness of distributed ones. This architecture is based on a centralized controller that ephemerally configures the routing table with alternative paths already computed by the TRILL IS-IS protocol. This ephemeral entry enables service continuity while the TRILL. IS-IS recomputes the definitive route. The experimental evaluation shows that the recovery from the link failure is almost instantanious.
Smart Cloud Networks & Systems (SCNS) Smart Cloud Networks & Systems (SCNS) http://hal.upmc.fr/hal-01521444 Smart Cloud Networks & Systems (SCNS), Dec 2016, Dubai, United Arab Emirates. IEEE, Smart Cloud Networks & Systems (SCNS), 2016, Smart Cloud Networks & Systems (SCNS). <http://scns-conference.org/>. <10.1109/SCNS.2016.7870564> http://scns-conference.org/ARRAY(0x7fe6a6ea2dc8) 2016-12-19