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Hybrid OpenFlow Switching
The router supports HA for the OF Flow Table content and statistics. On an activity switch the
channel goes down and is re-established by the newly active CPM. "Fail secure mode" operation
takes place during channel re-establishment (OpenFlow rules continue to be applied to the arriving
traffic). OF controller is expected to re-synchronize the OF table when the channel is re-
established. HA support for OF control channel is future functionality. On a router reboot, H-OFS
Flow Table rules and statistics are purged. The same takes place when H-OFS instance is
shutdown. The H-OFS instance cannot be deleted unless the H-OFS instance is removed first from
all embedding filter policies.
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7750 SR OS Router Configuration Guide
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