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LYNDON Y. ONG
© 2010 Taylor & Francis Group, LLC
Some functions will clearly need to be controlled locally to meet
standard time frames for recovery actions. e number of network
elements and the requirements for very high availability of service
provider networks (aiming at 0.99999 availability) will require that
controllers have active backups with state synchronization and fast
failover time, features that are still under development for controller
implementations.
Research on OpenFlow/SDN for Optical Networks
Ciena/Stanford Prototyping As a proof of concept, Ciena and Stanford
University cooperated in 2009 on a prototype OpenFlow-enabled ...