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Functional Description
26.1.8.4.3 TFTP (RFC 1350)
After a successful BOOTP completion, the device initiates the TFTP download of the boot image into
SRAM. The device has the capability to reach a TFTP server within the local subnet or outside, through
the gateway.
Timeouts and retries:
• Timeout of 1s to receive a response for the READ request
• 5 retries for the READ request
• Retries are managed by server once data transfer starts (server re-sends a data packet if the ACK was
not received within a timeout value)
• Device has a 60s timeout to complete the data transfer, to handle the scenario if the server dies in the
middle of a data transfer
4145
SPRUH73H–October 2011–Revised April 2013 Initialization
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