James Carlson wrote:
Peter Memishian writes:
> If you were hoping that TCP checksums would protect against (say) DMA
> errors between the network device and the stack itself, that
> protection is disabled by off-load. The trade-off you get is not
> having to waste CPU time looking at every byte against the
> unlikelihood of such (system design) errors.
I don't know, though, what users make of those risks. Their belief in
our collective ability to avoid bugs might differ.
It's been discussed over and over; I don't think there's a single
answer. For some real-world data,
http://www.acm.org/sigcomm/sigcomm2000/conf/paper/sigcomm2000-9-1.pdf
is an amusing read.
http://www1.ietf.org/mail-archive/web/rddp/current/msg00900.html
is a typical discussion.
- Jeremy Harris
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