Citrix SD-WAN

High Availability (HA) for a branch node

March 12, 2021

Contributed by:

S C

To configure High Availability for the branch site, do the following:

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.
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.
Enter the basic High Availability parameter values for the HA pair.
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.
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.
Enter the HA IP Interfaces information for the branch site.
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.
Click + to the right of the External Tracking table. This adds a new blank entry to the table and opens it for editing.
Enter the External Tracker IP Address.
Enter the IP Address of the external device that responds to ARP requests regarding the state of the primary client appliance.
Click Apply.

This adds the new High Availability configuration settings to the branch site configuration.

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High Availability (HA) for a branch node

March 12, 2021

Contributed by:

S C

March 12, 2021

Contributed by:

S C

High Availability (HA) for a branch node

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