Snort mailing list archives

RE: packet size


From: "Kreimendahl, Chad J" <Chad.Kreimendahl () umb com>
Date: Mon, 25 Aug 2003 11:23:41 -0500


Maybe you meant to reverse those small/large..

The biggest difference between smaller and larger packets as it relates
to snort and libpcap is really the interrupts it generates.  At 20Mbps
with large packets, most systems can handle that... but if you pump 3-4
times the packets down the pipe, you're likely to see drops and
livelock.  In snort 2.x user CPU doesn't ever appear so great as to
cause a problem in either scenario.  

-----Original Message-----
From: Mehmet Ersan TOPALOGLU [mailto:mersan () ceng metu edu tr] 
Sent: Monday, August 25, 2003 6:27 AM
To: snort-users () lists sourceforge net
Subject: [Snort-users] packet size


In case of constant, for example 20Mbit/s rate, network traffic.
What is the difference between large packets and small packets
for snort and for libpcap?

e.g: first case: large packets -> 5000packet/s with 20Mbit/s rate
      second case: small packets -> 20.000 packets/s with 20Mbit/s rate

-- 
- mersan
     mersan () ceng metu edu tr
     mersan () metu edu tr

        Budi srecna. Meni je to dovoljno.



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