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SubjectRe: zero-copy TCP
On Sun, Sep 03, 2000 at 08:46:15PM +0100, Alan Cox wrote:

You are perfectly at liberty to send invalidly checksummed
packets. Its a design decision. The remote simply discards the
frame

Not only that -- from outside the box it's often impossible to tell
why a certain packet has a broken checksum; it might be software,
hardware a stray event or interference for the Redmond Mind Control
Rays.

Right now; bad checksums occur on most networks[1] fairly often
anyhow; I guess Ingo was trying to say that we should make efforts
not to increase this number if at all possible?


--cw

[1] Well, reasonable sized networks. I guess it goes O(n) with the
number of hosts in the absence of something really broken.
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