Vrrp; Vrrp Global Settings; Vrrp Virtual Router Settings - D-Link Xstack DGS-3600 Series User Manual

VRRP

VRRP or Virtual Routing Redundancy Protocol is a function on the Switch that dynamically assigns responsibility for a virtual
router to one of the VRRP routers on a LAN. The VRRP router that controls the IP address associated with a virtual router is
called the Master, and will forward packets sent to this IP address. This will allow any Virtual Router IP address on the LAN to be
used as the default first hop router by end hosts. Utilizing VRRP, the administrator can achieve a higher available default path cost
without needing to configure every end host for dynamic routing or routing discovery protocols.
Statically configured default routes on the LAN are prone to a single point of failure. VRRP is designed to eliminate these failures
by setting an election protocol that will assign a responsibility for a virtual router to one of the VRRP routers on the LAN. When a
virtual router fails, the election protocol will select a virtual router with the highest priority to be the Master router on the LAN.
This retains the link and the connection is kept alive, regardless of the point of failure.
To configure VRRP for virtual routers on the Switch, an IP interface must be present on the system and it must be a part of a
VLAN. VRRP IP interfaces may be assigned to every VLAN, and therefore IP interface, on the Switch. VRRP routers within the
same VRRP group must be consistent in configuration settings for this protocol to function optimally.

VRRP Global Settings

To enable VRRP globally on the Switch, click L3 Features > VRRP > VRRP Global Settings:
The following fields can be set:
Parameter
VRRP State
Non-Owner
Response PING
Click Apply to implement changes made.

VRRP Virtual Router Settings

The following window will allow the user to view the parameters for the VRRP function on the Switch. To view this window,
click L3 Features > VRRP > VRRP Virtual Router Settings:
The following fields are displayed in the window above:
xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch
Figure 8- 6 . VRRP Global Settings window 4
Description
Use the pull-down menu to enable or disable VRRP globally on the Switch. The default is
Disabled.
Enabling this parameter will allow the virtual IP address to be pinged from other host end
nodes to verify connectivity. This will only enable the ping connectivity check function. This
command is Disabled by default.
Figure 8- 65. VRRP Virtual Router Settings window
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