Citrix SD-WAN

High Availability for MCN

March 12, 2021

Contributed by:

S C

An SD-WAN High Availability (HA) configuration is a configuration in which two SD-WAN Appliances at a site serve in an Active/Standby partnership, for redundancy purposes.

Important

Both appliances in an HA pair must be the same appliance model.

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

Continuing in the Sites tree for the new MCN site, click + to the left of the High Availability branch for the site. This displays the High Availability configuration form.
Click Edit (pencil icon) to the right of the High Availability branch to enable editing.
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) 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.
- Failover Time – This specifies the wait time (in milliseconds) after contact with the primary MCN appliance is lost, before the standby MCN 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 MCN appliance becomes the primary MCN appliance, and takes precedence.
- Primary Reclaim (checkbox) – When this is selected, the designated primary MCN 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 MCN site.

Select or enter the following:
- Virtual Interface – This is the Virtual Interface to be used for communication between the appliances in the MCN HA pair.
- Primary – This is the unique Virtual IP Address for the primary MCN appliance. The secondary MCN uses this for communication with the primary MCN.
- Secondary – This is the unique Virtual IP Address for the secondary MCN appliance. The primary MCN uses this for communication with the secondary MCN.
Click + to the left of the new HA IP Interfaces entry. This displays the External Tracking table, as shown in.
Click + to the right of External Tracking. A new blank entry to the table is added and opened 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 MCN appliance.
Click Apply. The new High Availability configuration settings are added to the MCN site configuration.

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

High Availability for MCN

March 12, 2021

Contributed by:

S C

March 12, 2021

Contributed by:

S C

High Availability for MCN

In this article