| To: | Ben Greear <greearb@xxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Turning off CRC check in NIC |
| From: | Andi Kleen <ak@xxxxxxx> |
| Date: | Sun, 11 Nov 2001 10:41:22 +0100 |
| Cc: | Donald Becker <becker@xxxxxxxxx>, Carl-Johan Bostorp <ctor@xxxxxxxxxxxxxxxxxxxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <3BEE28DE.9040606@candelatech.com>; from greearb@candelatech.com on Sun, Nov 11, 2001 at 12:29:34AM -0700 |
| References: | <Pine.LNX.4.10.10111101829280.686-100000@vaio.greennet> <3BEE28DE.9040606@candelatech.com> |
| Sender: | owner-netdev@xxxxxxxxxxx |
| User-agent: | Mutt/1.3.16i |
On Sun, Nov 11, 2001 at 12:29:34AM -0700, Ben Greear wrote: > The higher layers like TCP and UDP have their own checksums, so should catch > most bad packets there... (UDP may ignore it's checksum, btw)... The TCP/UDP checksum is much weaker than the CRC used by ethernet and does not detect many errors. It is mostly a protection against bugs, not about real bit errors as they could occur on the wire. I would not turn the ethernet CRC off. -Andi |
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