[e2e] UDP checksum field?

[Cannara]

Faisal, yes indeed, the checksum lets the receiver discard garbage, just as
the CRC at the frame level does.  UDP can be asked to not use the checksum,
for devil-may-care applications. :]

Alex

Faisal Aslam wrote:
> 
> Hi,
> 
> Why we have checksum field is in UDP header, as UDP does not provide data retransmission etc?
> I think it is used only to silently discarding a packet with wrong checksum (thats it?). Is there any other application of checksum field?
> 
> Sorry if the question is too naive.
> 
> Thanks
> Faisal
>