Software; Restore Software - Zhone zNID-GPON-2402 Configuration Manual

Management

Software

The Software screens provide options to restore software from the alternate
bank or to use a version of software saved elsewhere.

Restore software

The ONU stores two sets of software. One set, the Current Software Version
or active software, is the software set which is currently running the ONU.
The other set is the Alternate Software Version or standby software, and is
stored in the ONU's alternate (non-running) bank. Clicking Reload will cause
the alternate software to run the ONU after rebooting it, thus it becomes the
current software. The previously current software will then become the
alternate software. After the ONU reboots the system will update its display
of current and alternate Software versions automatically.The configuration
remains unchanged. In other words you do not need to reconfigure the ONU
after completing the restore procedure.
Clicking Reload software will cause the unit to reboot as it switches to the
newly active software. This will happen immediately after clicking — no
extra warning message is provided.
Note that when restoring an older version there can be issues with the older
code running with a newer configuration data base. The configuration
database stores the configuration of the interfaces (with all the services, such
as tagging and rate limiting, as well as other configuration information). In
some cases, the ONU will have to reset to factory defaults, and then the ONU
will need to be manually re-configured.
Figure 28: Restoring software from an alternate bank
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zNID 24xx Series Configuration Guide