Adding and Editing VRRP Configurations

To define the configuration of a VRRP group:

1. Select Configuration > Profiles.

2. Select VRRP.

3. From within VRRP tab, select Add to create a new VRRP configuration or Edit to modify the attributes of an existing VRRP configuration. If necessary, existing VRRP configurations can be selected and permanently removed by selecting Delete.

   If adding or editing a VRRP configuration, the following screen displays:

   

4. If creating a new VRRP configuration, assign a Virtual Router ID from (1 - 255). In addition to functioning as numerical identifier, the ID identifies the access point's virtual router a packet is reporting status for.

5. Define the following VRRP General parameters:

   Description	In addition to an ID assignment, a virtual router configuration can be assigned a textual description (up to 64 characters) to further distinguish it from others with a similar configuration.
   Priority	Use the spinner control to set a VRRP priority setting from 1 - 254. The defined setting is used as criteria in selection of a virtual router master. The higher the value, the greater the likelihood of this virtual router ID being selected as the master.
   Virtual IP Addresses	Provide up to 8 IP addresses representing Ethernet switches, routers or security appliances defined as virtual router resources.
   Advertisement Interval Unit	Select either seconds, milliseconds or centiseconds as the unit used to define VRRP advertisements. Once an option is selected, the spinner control becomes enabled for that Advertisement Interval option. The default interval unit is seconds. If changing the VRRP group version from 2 to 3, ensure the advertisement interval is in centiseconds. Use VRRP group version 2 when the advertisement interval is either in seconds or milliseconds.
   Advertisement Interval	Once a Advertisement Interval unit has been selected, use the spinner control to set the Interval at which the VRRP master sends out advertisements on each of its configured VLANs. The default setting is 1 second.
   Preempt	Select this option to ensure a high priority backup router is available to preempt a lower priority backup router resource. The default setting is enabled. When selected, the Preempt Delay option becomes enabled to set the actual delay interval for pre-emption. This setting determines if a node with a higher priority can takeover all the Virtual IPs from the nodes with a lower priority.
   Preempt Delay	If the Preempt option is selected, use the spinner control to set the delay interval (in seconds) for pre-emption.
   Interface	Select this value to enable/disable VRRP operation and define the VLAN (1 - 4,094) interface where VRRP is running. These are the interfaces monitored to detect a link failure.

6. Refer to the Protocol Extension field to define the following:

   Sync Group	Select the option to assign a VRRP sync group to this VRRP ID's group of virtual IP addresses. This triggers VRRP failover if an advertisement is not received from the virtual masters that are part of this VRRP sync group. This setting is disabled b y default.
   Network Monitoring: Local Interface	Select the wwan1, pppoe1 and VLAN ID(s) as needed to extend VRRP monitoring to these local interfaces. Once selected, these interfaces can be assigned an increasing or decreasing level or priority for virtual routing within the VRRP group.
   Network Monitoring: Critical Resource Name	Assign the priority level for the selected local interfaces. Backup virtual routers can increase or decrease their priority in case the critical resources connected to the master router fail, and transition to the master state. Additionally, the master virtual router can lower its priority if the critical resources connected to it fails, so the backup can transition to the master state. This value can only be set on the backup or master router resource, not both. Options include None, increment-priority and decrement priority.
   Network Monitoring: Delta Priority	Use this setting to decrement the configured priority (by the set value) when the monitored interface is down. When performing critical resource monitoring, the setting is incremented by the value defined.

7. Select OK to save the changes made to the VRRP configuration. Select Reset to revert to the last saved configuration.