Date: Wed, 14 Sep 2011 15:25:58 +0200 From: =?iso-8859-1?Q?Michael_T=FCxen?= <Michael.Tuexen@lurchi.franken.de> To: jyl_2006 <yilinjing2006@gmail.com> Cc: freebsd-net@freebsd.org Subject: =?utf-8?q?Re=3A_sctp_cmt_problem=EF=BC=9Ausing_two_wireless_card?= =?utf-8?q?s_the_speed_is_lower_than_using_one_wireless_cards?= Message-ID: <28F8245C-FF5F-4CBC-892E-994FF041CDE3@lurchi.franken.de> In-Reply-To: <1316005014487-4802660.post@n5.nabble.com> References: <1316005014487-4802660.post@n5.nabble.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sep 14, 2011, at 2:56 PM, jyl_2006 wrote: > Before testing cmt in wlan,we also turn on sysctl states by setting=20 > sysctl net.inet.sctp.cmt_pf=3D1=20 > sysctl net.inet.sctp.cmt_use_dac=3D1=20 > sysctl net.inet.sctp.cmt_on_off=3D1=20 >=20 > My Os is Freebsd8.2, I write a simple tarball to send data , and get = data > from wireshark . > The result shows that both two path have data , but the time of two = path is > much higher than one path. >=20 > Can anyone point out something we did wrong or steps we missed?=20 Hi, I would suggest to update to the latest version of the code, FreeBSD 9 = Beta2. In addition to that, you might want to * enable NR-SACK: sysctl -w net.inet.sctp.nr_sack_on_off=3D1 * enable send/recv buffer splitting: sysctl -w = net.inet.sctp.buffer_splitting=3D3 This should improve things. I've tested stuff with wired interfaces. Not sure how wireless interference might impact that stuff. Best regards Michael > Thanks in advance. >=20 >=20 > -- > View this message in context: = http://freebsd.1045724.n5.nabble.com/sctp-cmt-problem-using-two-wireless-c= ards-the-speed-is-lower-than-using-one-wireless-cards-tp4802660p4802660.ht= ml > Sent from the freebsd-net mailing list archive at Nabble.com. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >=20
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?28F8245C-FF5F-4CBC-892E-994FF041CDE3>