[U-Boot-Users] Multicast TFTP problems

[Rafal Jaworowski]

Ben Warren wrote:
[...]
> TFTP packets are structured as follows:
> 
> | Eth header (14 bytes) | IP header (20 bytes) | UDP header (8 bytes) | 
> TFTP message | Eth FCS (4 bytes) |
> 
> You can see that the total overhead is 46 bytes. If your network port's 
> maximum MTU size is 1500 bytes (the default), the math works out for a 
> maximum TFTP PDU size of 1454 bytes.
> 
> However... the Ethernet header/trailer is not supposed to be included in 
> the MTU. I suspect we have a terminology problem here. Let me dig a bit 
> further to find out what's going on.
> 

Hi Ben,

Did you manage to look at this any further?

kind regards,
Rafal