Naturally, any critical system will have to be built with high availability in mind, and this requirement is not lost on OpenFlow controller vendors. The HA functions are not part of the Openflow protocol definition and will have to be implemented independently of the protocol. I'd expect to see HA implemented in other than active/standby, but how HA will actually be implemented will vary by vendor.
Mike Fratto is a principal analyst at Current Analysis, covering the Enterprise Networking and Data Center Technology markets. Prior to that, Mike was with UBM Tech for 15 years, and served as editor of Network Computing. He was also lead analyst for InformationWeek Analytics ... View Full Bio