Configuring VRRP (NSM Procedure)
Virtual Router Redundancy Protocol (VRRP) prevents loss of network connectivity to end hosts if the static default IP gateway fails. By implementing VRRP, you can designate a number of routers as backup routers in the event that the default master router fails. VRRP fully supports Virtual Local Area Networks (VLANs) and stacked VLANs (S-VLANs). In case of a failure, VRRP dynamically shifts the packet-forwarding responsibility to a backup router. VRRP creates a redundancy scheme which enables hosts to keep a single IP address for the default gateway but maps the IP address to a well-known virtual MAC address. VRRP provides this redundancy without user intervention or additional configuration at the end hosts.
To configure VRRP in NSM:
- In the navigation tree select Device Manager > Devices and select the device from the list.
- In the configuration tree, expand Protocols.
- Select VRRP.
- Add/Modify the parameters under the respective tabs as specified in Table 1.
- Click one:
- OK—To save the changes.
- Cancel—To cancel the modifications.
- Apply — To apply the protocol settings.
 | Note: After you make changes to a device configuration, you must push that updated device configuration to the physical security device for those changes to take effect. You can update multiple devices at one time. See Updating Devices for more information. |
Table 1: VRRP Configuration Fields
Field | Function | Your Action |
|---|---|---|
VRRP | ||
Comment | Specifies comment for VRRP. |
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Startup Silent Period | Enables the system to ignore the Master Down Event when an interface transitions from the disabled state to the enabled state. It avoids an incorrect error alarm caused by delay or interruption of incoming VRRP advertisement packets during the interface startup phase. |
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Traceoptions | Enables you to configure VRRP level tracing options. |
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