Virtual Router Redundancy Protocol (Vrrp); Vrrp Configuration; Figure 217: Vrrp Configuration; Table 196: Vrrp Configuration - D-Link DWS-4026 User Manual

D-Link Unified Access System
V R
IRTUAL OUTER
The Virtual Router Redundancy protocol is designed to handle default router failures by providing a scheme to dynamically
elect a backup router. The driving force was to minimize "black hole" periods due to the failure of the default gateway router
during which all traffic directed towards it is lost until the failure is detected. Though static configuration of default routes is
popular, such an approach is susceptible to a single point of failure when the default router fails. VRRP advocates the
concept of a "virtual router" associated with one or more IP Addresses that serve as default gateways. In the event that the
VRRP Router controlling these IP Addresses (formally known as the Master) fails, the group of IP Addresses and the default
forwarding role is taken over by a Backup VRRP Router.
The LAN > L3 Features > VRRP folder and LAN > Monitoring > L3 Status folder contain links to the following web pages
that configure and display VRRP parameters and data:
•

"VRRP Configuration"

• "Virtual Router Configuration"
• "Virtual Router Status"
• "Virtual Router Statistics"
VRRP C
ONFIGURATION
Use the VRRP Configuration page to enable or disable the administrative status of a virtual router.
To display the page, click LAN > L3 Features > VRRP > VRRP Configuration in the navigation tree.
Field
Admin Mode
• If you change the administrative mode, click Submit to apply the changes to the system.
Page 312

Virtual Router Redundancy Protocol (VRRP)

R P
EDUNDANCY

Figure 217: VRRP Configuration

Table 196: VRRP Configuration

Description
This sets the administrative status of VRRP in the router to active or inactive. Select
Enable or Disable from the dropdown menu. The default is Disable.
(VRRP)
ROTOCOL
Document 34CSFP6XXUWS-SWUM100-D7
Software User Manual
12/10/09