SonicOS/X 7 High Availability

High Availability Terminology

High Availability Terminology
ActiveThe operative condition of a hardware unit. The Active identifier is a logical role that can be assumed by either a Primary or Secondary hardware unit.
FailoverThe actual process in which the Standby unit assumes the Active role following a qualified failure of the Active unit. Qualification of failure is achieved by various configurable physical and logical monitoring facilities described in Configuring High Availability.
HAHigh Availability: non-state, hardware failover capability.
IDVInterface Disambiguation through VLAN.
PoEPower over Ethernet is a technology that lets network cables carry electrical power.
PPPPoint-to-point protocol that provides a standard method for transporting multi-protocol diagrams over point-to-point links.
PPPoEA method for transmitting PPP over ethernet.
PPPoE HAHA PPPoE support function without State.
PreemptApplies to a post-failover condition in which the Primary unit has failed, and the Secondary unit has assumed the Active role. Enabling Preempt causes the Primary unit to seize the Active role from the Secondary after the Primary has been restored to a verified operational state.
PrimaryThe principal hardware unit itself. The Primary identifier is a manual designation and is not subject to conditional changes. Under normal operating conditions, the Primary hardware unit operates in an Active role.
Secondary (Backup)The subordinate hardware unit itself. The Secondary identifier is a relational designation and is assumed by a unit when paired with a Primary unit. Under normal operating conditions, the Secondary unit operates in a Standby mode. Upon failure of the Primary unit, the Secondary unit assumes the Active role.
SHFState Hardware Failover, a SonicOS feature that allows existing network flows to remain active when the primary Security Appliance fails and the backup Security Appliance takes over.
Standby (Idle)The passive condition of a hardware unit. The Standby identifier is a logical role that can be assumed by either a Primary or Secondary hardware unit. The Standby unit assumes the Active role upon a determinable failure of the Active unit.
STPSpanning Tree Protocol.

Was This Article Helpful?

Help us to improve our support portal

Techdocs Article Helpful form

Techdocs Article NOT Helpful form

  • Still can't find what you're looking for? Try our knowledge base or ask our community for more help.