Zyxel ZyWALL USG 300 [166/185] L device ha faq

ZyWALL USG Support Notes

166

L. Device HA FAQ

L01. What does the “Preempt” mean?

The “Preempt” means that the Backup with high priority can preempt the Backup

with low priority when the Backup device is online. And Master can always preempt

any Backup.

L02. What is the password in Synchronization?

If the Backup wants to synchronize the configuration from Master, both Master and

Backup device must be set the same password.

L03. What is “Link Monitor” and how to enable it?

There is a new feature enhancement “Link Monitor” in ZLD 2.10 of USG. By

enabling “Link Monitor” option, the ZyWALL monitors link status of

direct-connected cables constantly. If a master ZyWALL device HA interface's link is

down, the faulty device HA interface on master's router remains in status active and

the rest of HA interface(s) on the master router will turn into fault. The purpose of this

design is to prevent the backup router interface in the same HA group cannot detect

the faulty event encountered on the master router.

You can click on Device HA from the left panel and check the “Enable” checkbox to

enable “Monitored Interface.”

L04. Can Link Monitor of Device HA be used in backup VRRP

interfaces?

No, the Link monitor is designed only for master device, if the master VRRP