Messages in this thread | | | Date | Thu, 28 Mar 2002 11:59:24 +0100 | From | Peter Wächtler <> | Subject | Re: Networking with slow CPUs |
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Robert Schwebel wrote:
> Hi, > > in the 2.2 series there was a switch for "CPU is too slow to handle full > bandwidth" which has gone in 2.4. Can anybody tell me the reason for this? > > Is there a possibility to "harden" a small machine (33 MHz embedded > device) against e.g. flood pings from the outside world? >
AFAIK, there is a mechanism to switch off the interrupts generated by the network card, if the load is getting too high. This way the packets get overwritten on the nic buffers and do not even reach the CPU.
I don't know if this is implemented (in all drivers?)
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