Thanks - Ill check them out now
> Date: Mon, 1 Apr 2013 16:16:36 -0700 > From: [email protected] > To: [email protected] > CC: [email protected] > Subject: Re: [c-nsp] Performance issue on link > > These might be helpful: > > http://fasterdata.es.net/network-tuning/ > > http://www.mellanox.com/related-docs/prod_software/Performance_Tuning_Guide_for_Mellanox_Network_Adapters.pdf > > -Azher > > On 4/1/2013 3:51 PM, CiscoNSP List wrote: > > Hi, > > > > We have a 40Mb link between 2 POPs - Latency ~65m/sec (No packet-loss) > > > > POP A Is a 7301 and 2960POP B is a 7200 and 4948 > > > > 40Mb link is connected to the two switches (L2), and then a trunk link to > > both routers for all L3. > > > > Have a Linux server connected to both switches, and achieve the following > > performance: > > > > IPERF (UDP) > > POP A -> POP B - 38.5Mb/secPOP B -> POP A - 38.5Mb/sec > > > > IPERF (TCP) > > POP A -> POP B - ~20Mb/secPOP B -> POP A - ~12Mb/sec > > > > FTP > > POP A -> POP B - ~38Mb/secPOP B -> POP A - ~16Mb/sec > > > > WGET > > POP A -> POP B - ~30Mb/sec POP B -> POP A - ~16Mb/sec > > > > Any suggestions on why I am seeing poor performance with TCP transfers? > > (Especially POP B -> POP A direction) - I've tried adjusting the window > > size in IPERF but it actually made the results worse? > > Thanks in advance. > > > > > > > > > > _______________________________________________ > > cisco-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
