ZyXEL ZyWALL ATP700 User Guide - Page 749
Device HA Pro
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Chapter 35 Device HA Table 313 Configuration > Device HA > Device HA Status (continued) LABEL DESCRIPTION Service Status This field displays whether a service license is enabled at myZyxel (Activated) or not (Not Activated) or expired (Expired). It displays the remaining Grace Period if your license has Expired. It displays Not Licensed if there isn't a license to be activated for this service. If you need a license or a trial license has expired, click Buy to buy a new one. If a Standard license has expired, click Renew to extend the license. Apply Reset Then, click Activate to connect with the myZyxel server to activate the new license. Click Apply to save your changes back to the Zyxel Device. Click Reset to return the screen to its last-saved settings. 35.3 Device HA Pro You need a license to use Device HA Pro. Device HA Pro is easier to deploy than Device HA, is more reliable (no risk of overloading), and faster (Device HA causes a connection break of 10~30 seconds while Device HA Pro just has 1~2 seconds). In addition to configuration file backup in Device HA, device time, TCP sessions (IPv4/IPv6), IPSec VPN sessions, login/logout information, DHCP table, IP/MAC binding table and license status can also be backed up using Device HA Pro. Active and Passive Devices Device HA Pro uses a dedicated heartbeat link between an active device ('master') and a passive device ('backup') for status syncing and backup to the passive device. On the passive device, all ports are disabled except for the port with the heartbeat link. In the following example, Zyxel Device A is the active device that is connected to passive device Zyxel Device B via a dedicated link that is used for heartbeat control, configuration synchronization and troubleshooting. All links on Zyxel Device B are down except for the dedicated heartbeat link. Note: The dedicated heartbeat link port must be the highest-numbered copper Ethernet port on each Zyxel Device for Device HA Pro to work. Figure 501 Device HA Pro Failover from the active Zyxel Device to the passive Zyxel Device is activated when: • A monitored interface is down. • A monitored service (daemon) is down. • The heartbeat link exceeds the failure tolerance. ZyWALL ATP Series User's Guide 749
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