ZyXEL ZyWALL USG 2000 User Guide - Page 669
Device HA General
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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 HA Turn the ZyWALL's device HA feature on or off. Note: It is not recommended to use STP (Spanning Tree Protocol) with device HA. Device HA Mode This displays whether the ZyWALL is currently set to use active-passive 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. Monitored Interface Summary # Interface Virtual Router IP / Netmask Management IP / Netmask Link Status 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. This table shows the status of the interfaces that you selected for monitoring in the other device HA screens. This is the entry's index number in the list. These are the names of the interfaces that are monitored by device HA. This is the interface's IP address and subnet mask. Whichever ZyWALL is the master uses this virtual router IP address and subnet mask. This field displays the interface's management IP address and subnet mask. You can use this IP address and subnet mask to access the ZyWALL whether it is in master or backup mode. This tells whether the monitored interface's connection is down or up. ZyWALL USG 2000 User's Guide 669
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