Andrew, Average packet size is about 450 bytes with a packet rate or 100k packets/second.
So what type of box do you use? How much disk? How long can you saturate a link with 1k sized packets? Bill Cobau On May 26, 2008, at 6:29 PM, Andrew Edgecombe wrote: > William Cobau wrote: >> Tcpreplay community, >> >> I am already successfully using tcpreplay for my testing activities. >> Our setup is rather simple with a Linux server (typically Redhat EL5) >> connected directly via 1000 B/T to the system under test. The linux >> server uses tcpreplay (presently v3.2.5, but we could/will upgrade to >> v3.3.x) to send previous captured data streams to the system under >> test. There is no need for tcprewrite or the other tools in the >> tcpreplay suite as the tcpreplay box is simulating a mirror port >> or a tap. >> >> We are trying to enhance our testing by increasing amount of data and >> the data rate. The data was captured at roughly 350 Mbps over 3 hours >> for 450 Gbytes/1e9 packets. >> >> Has anyone built or bought a box that handles this data rate and >> volume? Any suggestions or comments would be welcome. >> >> Bill Cobau > Hi William, > What sort of traffic are you trying to replay? In particular, what > sort > of packet sizes are you using? > I've found in testing that the packet rate that I'm able to achieve is > more or less consistent regardless of the packet size. Meaning that if > I'm replaying large packets (eg. 1k) I can saturate a gigabit link > (even > without the cache option), but if I'm replaying small packets (eg. > 58bytes) I'll see figures more like 80mb/s. > > I second Peter Van Epp's comments about pci-express. If possible > I'd go > for a pci-express x4, or better, card. > > Andrew Edgecombe > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Tcpreplay-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/tcpreplay-users > Support Information: http://tcpreplay.synfin.net/trac/wiki/Support ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Tcpreplay-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tcpreplay-users Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
