# Configuring VRRP interface properties

Use the following procedure to configure VRRP interface properties.

## Prerequisites

- Install the Advanced License.

- Enable IP routing globally on the switch.

- Assign an IP address to the VLAN that you want to enable with VRRP.

  Routing is automatically enabled on the VLAN when you assign an IP address to it.

## Procedure steps

1. From the navigation tree, double-click IP Routing.

2. In the IP Routing tree, double-click VRRP.

3. In the work area, click the Interfaces tab.

4. In the table, double-click the cell under the column heading for the parameter you want to change.

5. Select a parameter or value from the drop-down list.

6. Repeat the previous two steps until you have amended all of the parameters you want to change.

7. In the toolbar, click Apply.

## Variable definitions

The following table describes the fields of the Interfaces tab.

Field | Definition
--- | ---
Index | Specifies the index of the VRRP interface.
VrId | Specifies the virtual router ID.
PrimaryIpAddr | Specifies an IP address selected from the set of real interface addresses. VRRP advertisements are always sent using the primary IP address as the source of the IP packet.
VirtualMacAddr | Specifies the virtual MAC address of the virtual router.
State | Specifies the current state of the virtual router. A virtual router can be in one of the following states: initalize indicates the virtual router is waiting for a startup event. backup indicates the virtual router is monitoring the availability of the master router. master indicates the router is forwarding packets for IP addresses associated with the virtual router ID.
AdminState | Indicates the administrative status of the virtual router.
Priority | Indicates the priority to use for the virtual router master election process. This field is an integer value between 1 and 255. The priority value for the VRRP router that owns the IP addresses associated with the virtual router must be 255. The default priority value for VRRP routers that back up a virtual router is 100.
MasterIpAddr | Indicates the real (primary) IP address of the master router. This address is the IP address listed as the source in the VRRP advertisement last received by this virtual router.
AdvertisementInterval | Indicates the time interval, in seconds, between transmission of advertisement messages. Only the master router sends VRRP advertisements. This field is an integer value between 1 and 255. The default value is 1.
VirtualRouterUpTime | Indicates the amount of time this virtual router has spent out of the initialize state.
HolddownTimer | Specifies the amount of time (in seconds) to wait before preempting the current VRRP master. This field is an integer value between 0 and 21600.
HoldDownState | Specifies the holddown state of this VRRP interface.
HoldDownTimeRemaining | Specifies the amount of time (in seconds) left before the holddown timer expires.
Action | Triggers an action on this VRRP interface. Options available are: none (no action) or preemptHoldDownTimer.
CriticalIpAddrEnabled | Indicates whether the user-defined critical IP address is enabled. If the user-defined critical IP address is not enabled, a default critical IP address of 0.0.0.0 is used.
CriticalIpAddr | Specifies the IP address of the interface that will cause a shutdown event.
BackupMasterEnabled | Indicates whether the backup/master functionality is enabled on this interface.
BackupMasterState | Indicates the state of the backup/master functionality.
FastAdvertisementEnabled | Indicates if the Faster Advertisement Interval should be used. The default value is false.
FastAdvertisementInterval | Specifies the fast advertisement interval, in milliseconds, between sending advertisement messages. This field is an integer value between 200 and 1000. The default value is 200.