Programming instructions

Appendix A: FAQ
A-5
Alvarion
Firmware
Can the BU-DS.5800/RB-DS.5800 firmware be upgraded?
Yes, the firmware in the BU-DS.5800/RB-DS.5800 is stored in flash
and is upgraded using the built in Configuration Utility or the TFTP
server.
Can the BU-DS.5800/RB-DS.5800 flash be erased or the firmware
changed by an unauthorized person?
No, the TFTP server in the BU-DS.5800/RB-DS.5800 requires the SNMP
write community name (password) to perform an upgrade.
Can the firmware flash be corrupted when upgrading to a new
version?
Yes, if the TFTP file transfer is interrupted during a flash update the
firmware may be corrupted. The DS.5800 has a backup flash, which
contains the previous version for firmware. If the primary flash is
corrupt, then the backup is automatically used to return the unit to an
operating state.
When does the back up flash image get upgraded?
After completing a firmware upgrade, the backup flash containing the
old firmware version is overwritten with the new version on the new
power on cycle.
Can DS.5800 firmware be downgraded?
Yes, an earlier version of firmware can overwrite a newer version.
Can the previous version of firmware be kept?
The previous version of firmware cannot be kept on the DS.5800 itself,
but can be stored on your PC and loaded if needed.