On Thu, Aug 30, 2012 at 5:06 PM, Norbert Aschendorff <[email protected]> wrote: > I tested it using tcpdump: http://nopaste.info/9394068f54_nl.html > The length field says for each packet 1408 bytes, so that should be OK. >
TCP the packet size is OK (MSS negociated), it's in IPv6 UDP mode that iperf have a problem with the default packet size: "iperf -V -u -c desthost" "tcpdump host desthost" output (notice the frag and default length): 00:08:33.256304 IP6 (flowlabel 0x09036, hlim 64, next-header Fragment (44) payload length: 1440) 2001:db8::1 > 2001:db8::2: frag (0x3c8d768a:0|1432) 39065 > commplex-link: UDP, length 1470 00:08:33.256307 IP6 (flowlabel 0x09036, hlim 64, next-header Fragment (44) payload length: 54) 2001:db8::1 > 2001:db8::2: frag (0x3c8d768a:1432|46) 00:08:33.256317 IP6 (flowlabel 0x09036, hlim 64, next-header Fragment (44) payload length: 1440) 2001:db8::1 > 2001:db8::2: frag (0x6f6f083c:0|1432) 39065 > commplex-link: UDP, length 1470 00:08:33.256320 IP6 (flowlabel 0x09036, hlim 64, next-header Fragment (44) payload length: 54) 2001:db8::1 > 2001:db8::1: frag (0x6f6f083c:1432|46) Regards, olivier _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
