SonicOS/X 7 High Availability

Configuring Redundant Ports

Redundant ports can be used along with Active/Active Clustering. You can assign an unused physical interface as a redundant port to a configured physical interface called the “primary interface”. If there is a physical link failure on the primary interface, the redundant interface can continue processing traffic without any interruption. One advantage of this feature is that in case of a physical link failure, there is no need to do a device failover.

You can configure a redundant port on Network | System > Interfaces > Edit Interface > Advanced dialog. The Redundant Port field is only available when Active/Active Clustering is enabled.

Because all Cluster Nodes share the same configuration, each node must have the same redundant ports configured and connected to the same switch(es).

To configure a redundant port for an interface:

  1. Log in to the Primary unit of the Cluster Node.
  2. Navigate to Network | System > Interfaces.
  3. In the Interface Settings table, click the Edit icon for the primary interface for which you want to create a redundant port. For example, click the Edit icon for X2. The Edit Interface dialog displays.
  4. Click Advanced.
  5. From Redundant/Aggregate Ports, select Port Redundancy. The options on the dialog change.
  6. From Redundant Port, select the redundant port. Only unused interfaces are available for selection. For example, select X4 for the redundant port.
  7. Click OK.

    The selected interface is dimmed in the Interface Settings table. A note indicates that it is a redundant Port and lists the primary interface. The interface also appears in the Redundant Port field in the Edit Interface dialog of the primary port.

    The primary and redundant ports must be physically connected to the same switch, or preferably, to redundant switches in the network.

  8. On each Cluster Node, replicate the redundant physical connections using the same interface numbers for primary and redundant ports. All Cluster Nodes share the same configuration as the Master node.

Was This Article Helpful?

Help us to improve our support portal

Techdocs Article Helpful form

Techdocs Article NOT Helpful form

  • Still can't find what you're looking for? Try our knowledge base or ask our community for more help.