A network engineer has configured two NetScaler MPX appliances as a high availability (HA) pair.
What can the engineer configure to prevent failover if only a single interface fails?
A.
FIS
B.
PBR
C.
SNMP
D.
VMAC
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To overcome a Switch being the single point of failure in the network, the appliances of a High Availability setup can be configured to be physically connected to redundant Switches. This addresses the following scenario:
NetScaler appliance A is connected to Switch A
NetScaler appliance B is connected to Switch B
NetScaler appliances A and B are part of a High Availability setup
If both Switch A and NetScaler appliance B fail, no network traffic can reach the local virtual servers. To overcome this failure scenario, two links can be used from each NetScaler appliance with each link connected to a different Switch.
Using link redundancy, you can group the two interfaces into a Failover Interface Set, and therefore prevent the failure of a single link from causing a failover to the secondary appliance unless all interfaces on the primary appliance stop functioning.
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