Andi Kleen wrote:
> Assuming 40 bytes minimum packets you could have a ~2.5MB "error window"
> outstanding, when you use bigger packet sizes on average much more.
>
> Regarding (2), I'm aware of the way inetpeer id selection works in 2.3.
> Do you have any other point?
If the destination address changes, your window is much smaller, because
a new peer ID is assigned. E.g. with 2.3.40, roughly 1.5% of the IP IDs
repeat after 1000 packets or less, and about 10% repeat after <= 7000
packets. (Measured over 59881 packets, each with its own destination.)
Now I thought the process was something like 8 bits cycle plus 8 random
bits, but it's actually a bit more complex. So no mathematical
explanation, sorry ;-)
- Werner
-- _________________________________________________________________________ / Werner Almesberger, ICA, EPFL, CH werner.almesberger@ica.epfl.ch / /_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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