ZyXEL Communications USG 2000 39.2 Device HA General

Chapter 39 Device HA

39.2 Device HA General

The Configuration > Device HA General screen lets you enable or disable device HA, and displays which device HA mode the ZyWALL is set to use along with a summary of the monitored interfaces.

Figure 450 Configuration > Device HA > General

The following table describes the labels in this screen.

Table 178 Configuration > Device HA > General

LABEL	DESCRIPTION
Enable Device	Turn the ZyWALL’s device HA feature on or off.
HA
	Note: It is not recommended to use STP (Spanning Tree Protocol)
	with device HA.
Device HA	This displays whether the ZyWALL is currently set to use active-passive
Mode	mode device HA or legacy mode device HA. Active-passive mode is
	recommended for general device failover deployments. Only use legacy
	mode if you need a more complex relationship between the master and
	backup ZyWALLs, such as active-active or using different ZyWALLs as
	the master for individual interfaces.
	The master and its backups must all use the same device HA mode.
	Click the link to go to the screen where you can configure the ZyWALL to
	use the device HA mode that it is not currently using.
Monitored	This table shows the status of the interfaces that you selected for
Interface	monitoring in the other device HA screens.
Summary
#	This is the entry’s index number in the list.
Interface	These are the names of the interfaces that are monitored by device HA.
Virtual Router	This is the interface’s IP address and subnet mask. Whichever ZyWALL is
IP / Netmask	the master uses this virtual router IP address and subnet mask.
Management	This field displays the interface’s management IP address and subnet
IP / Netmask	mask. You can use this IP address and subnet mask to access the
	ZyWALL whether it is in master or backup mode.
Link Status	This tells whether the monitored interface’s connection is down or up.

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