SIGNAMAX a.s.
Office: Vlarska 22, 627 00 Brno, CZ
T:+420 533 338 854 l F:+420 533 338 883 l www.signamax.eu
138
B. Auto-Provisioning Process
This Managed Switch is setting-free (through auto-upgrade and configuration) and its
upgrade procedures are as follows:
1. The ISC DHCP server will recognize the device whenever it sends an IP address
request to it. And ISC DHCP server will tell the device how to get a new firmware or
configuration.
2. The device will compare the firmware and configuration MD5 code form of DHCP option
every time when it communicates with DHCP server.
3. If MD5 code is different, the device will then upgrade the firmware or configuration.
However, it will not be activated right after.
4. If the Urgency Bit is set, the device will be reset to activate the new firmware or
configuration immediately.
5. The device will retry for 3 times if the file is incorrect, then it gives up until getting
another DHCP ACK packet again.