Configuring link redundancy
Link redundancy groups network interfaces together to prevent failover due to a failure on one network interface of an NetScaler Gateway that has other functioning interfaces. The failure of the first interface on the primary NetScaler Gateway triggers failover, although the first interface can still use its second link to serve user requests. When you configure link redundancy, you can group the two interfaces into a failover interface set, preventing the failure of a single link from causing failover to the secondary NetScaler Gateway, unless all interfaces on the primary NetScaler Gateway are nonfunctional.
Each interface in a failover interface set maintains independent bridge entries. The monitor interfaces that are enabled and high availability on an NetScaler Gateway that are not bound to a failed interface set are known as critical interfaces, because if any of these interfaces fails, failover is triggered.
- In the configuration utility, on the Configuration tab, in the navigation pane, expand System and then click High Availability.
- On the Failover Interface Set tab, click Add.
- In Name, type a name for the set.
- In Interfaces, click Add.
- Under Available Interfaces, select an interface and then click the arrow to move the interface to Configured.
- Repeat Steps 4 and 5 for the second interface, and then click Create.
You can add as many interfaces as you need for failover between the interfaces.
To remove interfaces from the failover interface set
- In the configuration utility, on the Configuration tab, in the navigation pane, expand System and then click High Availability.
- On the Failover Interface Set tab, select a set and then click Remove.
To remove a failover interface set
If you no longer need a failover interface set, you can remove it from NetScaler Gateway.
- In the configuration utility, on the Configuration tab, in the navigation pane, expand System and then click High Availability.
- On the Failover Interface Set tab, select a set and then click Remove.
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