UG87-LW User Guide
66
Priority
The VRRP priority range is 1-254 (a bigger number indicates a
higher priority). The router with higher priority will be more
likely to become the gateway router.
100
Advertisement Interval (s)
Heartbeat package transmission time interval between
routers in the virtual ip group. Range: 1-255.
1
Preemption Mode
If the gateway works in the preemption mode, once it finds
that its own priority is higher than that of the current gateway
router, it will send VRRP notification package, resulting in
re-election of gateway router and eventually replacing the
original gateway router. Accordingly, the original gateway
router will become a Backup router.
Disable
Track ID
Trace detection, select the defined track ID or blank
character.
None
Table 4-3-6-3 VRRP Parameters
4.3.6.4 WAN Failover
WAN failover refers to failover between Ethernet WAN interface and cellular interface. When
service transmission can’t be carried out normally due to malfunction of a certain interface
or lack of bandwidth, the rate of flow can be switched to backup interface quickly. Then the
backup interface will carry out service transmission and share network flow so as to improve
reliability of communication of data equipment.
When link state of main interface is switched from up to down, system will have the pre-set
delay works instead of switching to link of backup interface immediately. Only if the state of
main interface is still down after delay, will the system switch to link of backup interface.
Otherwise, system will remain unchanged.
Figure 4-3-6-4
Summary of Contents for UG87-LW
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