Digi TX54, User Manual

Page: 384 / 1087

Routing Virtual Router Redundancy Protocol (VRRP)
TX54 User Guide 384
Format:
/network/interface/defaultip
/network/interface/defaultlinklocal
/network/interface/lan1
/network/interface/lan_hotspot
/network/interface/loopback
/network/interface/wan1
/network/interface/wwan1
/network/interface/wwan2
Current value:
(config)> network vrrp test interface
b. Set the interface, for example:
(config)> add network vrrp VRRP_test vrrp_plus monitor_interface end
/network/interface/wwan1
(config)>
c. (Optional) Repeat for additional interfaces.
6. Set the amount that the device's priority should be decreased or increased due to SureLink
connectivity failure or success:
(config)> network vrrp VRRP_test vrrp_plus weight value
(config)>
where value is an integer between 1 and 254 . The default is 10 .
Along with the priority settings for devices in this VRRP pool, the amount entered here should
be large enough to automatically demote a master device when SureLink connectivity fails. For
example, if the VRRP master device has a priority of
100 and the backup device has a priority
of 80 , then weight should be set to an amount greater than 20 so that if SureLink fails on the
master, it will lower its priority to below 80 , and the backup device will assume the master
role.
7. (Optional) For backup devices, enable the ability for the device to monitor the master device.
This allows a backup VRRP device to monitor the master device, and increase its priority when
the master device is failing SureLink tests. This can allow a device functioning as a backup
device to promote itself to master.
(config)> network vrrp VRRP_test vrrp_plus monitor_master true
(config)>
8. Configure the VRRP interface:
a. Configure the VRRP interface's DHCP server to use a custom gateway that corresponds to
one of the VRRP virtual IP addresses:
i. Set the DHCP server gateway type to custom:
(config)> network interface lan1 ipv4 dhcp_server advanced gateway
custom
(config)>