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High Availability (HA) for a branch node
To configure High Availability for the branch site, do the following:
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Continuing in the Sites section tab, select the Branch for which you want to configure HA. Click the View Sites drop-down menu and select a branch site. Now select High Availability for the branch site. The High Availability configuration form is displayed.
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Select the Enable High Availability check box.
This enables High Availability for the site, and enables the first level of fields for configuring. A red asterisk (*) indicates a required field where you must enter a non-default value.
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Enter the basic High Availability parameter values for the HA pair.
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Enter or select the following:
- HA Appliance Name – This is the name of the HA (secondary) client appliance.
Note
To change or specify the mode for a site, open the Basic Settings branch for the site, and select the mode from the Mode drop-down menu. The options are: client, primary MCN, or secondary MCN. For a branch site appliance, select client as the mode.
- Failover Time – This specifies the wait time (in milliseconds) after contact with the primary client appliance is lost, before the standby client appliance becomes active.
- Shared Base MAC – This is the shared MAC Address for the HA pair appliances.
- Swap Primary/Secondary (checkbox) – When this is selected, if both appliances in the HA pair come up simultaneously, the secondary client appliance becomes the primary client appliance for the site, and takes precedence.
- Primary Reclaim (checkbox) – When this is selected, the designated primary client appliance reclaims control upon restart after a failover event.
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Click + to the right of HA IP Interfaces.
This adds a new blank entry in the HA IP Interfaces table, and enables the entry for editing.
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Enter the HA IP Interfaces information for the branch site.
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Select or enter the following:
- Virtual Interface – This is the Virtual Interface to be used for communication between the appliances in the HA appliance pair.
- Primary – This is the unique Virtual IP Address for the primary client appliance for this site. The secondary appliance uses this for communication with the primary client appliance.
- Secondary – This is the unique Virtual IP Address for the secondary client appliance for this site. The primary appliance uses this for communication with the secondary client appliance.
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Click + to the right of the External Tracking table. This adds a new blank entry to the table and opens it for editing.
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Enter the External Tracker IP Address.
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Enter the IP Address of the external device that responds to ARP requests regarding the state of the primary client appliance.
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Click Apply.
This adds the new High Availability configuration settings to the branch site configuration.
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