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DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide
341
After clicking the Edit button next to the IPv4 Address Family entry, the following window will appear:
Figure 6-148 VRRPv3 Settings (Edit, IPv4) Window
The fields that can be configured are described below:
Parameter Description
Virtual IP Address
Enter the virtual IPv4 address here. All routers in the same VRRP group must be
configured with the same virtual router ID and virtual address. The IPv4 address of
the virtual router can be a real address configured on the routers or an unused
address. If the virtual address is equal to the real address of the interface, this
virtual router is the IPv4 address owner.
Advertisement Interval
Enter the time interval value between successive advertisements by the master
router here. The range is from 1 to 255 seconds. The master will constantly send
VRRP advertisements. All virtual routers in a VRRP group must use the same
timer values.
Select the Default option to use the default value.
Preemption
Select to enable or disable the preemption feature here. This is used to allow a
router to take over the master role if it has a better priority than the current master.
Priority
Enter the priority value of the virtual router here. The range is from 1 to 254. The
master of a VRRP group is elected based on the priority. The virtual router with the
highest priority becomes the master and others with lower priorities act as the
backup for the VRRP group. If there are multiple routers with the same highest
priority value, the router with the larger IPv4 address will become the Master. The
router that is the IPv4 address owner of the VRRP group is always the master of
the VRRP group, and has the highest priority of 255.
Select the Default option to use the default value.
Critical IP Address
Enter the critical IPv4 address here. If the critical IPv4 is configured on one virtual
router, the virtual router cannot be activated when the critical IPv4 address is
unreachable. One VRRP group can only track one critical IPv4 address.
Non-Owner Ping
Select to enable or disable the non-owner ping feature here. This is used to enable
a non-IPv4 address owner virtual router in the master state to respond to ICMP
echo requests for IPv4 addresses.
Shutdown
Select to enable or disable the shutdown feature here. Avoid the common mistake
of shutting down the IPv4 address owner routers before shutting down other non-
owner routers.
Click the Back button to return to the previous window.
Click the Apply button to accept the changes made.
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