Date: Wed, 6 Jun 2012 19:24:10 +0200 From: Sebastian Stach <sebsta@t-online.de> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: em interfaces supermicro X9SCM-F board Message-ID: <3B262A53-C137-4E4E-B1B7-7471B1FBA258@t-online.de> In-Reply-To: <4FCF2E6E.2040902@quip.cz> References: <4FCE37FC.1090405@gmail.com> <878874BA-2F5C-4A7E-8690-2A8A96536AE0@t-online.de> <4FCE6931.6010901@quip.cz> <FF941767-FFC3-4D5E-B884-5D487F71E98E@t-online.de> <4FCE786A.2030205@quip.cz> <4FCF2E6E.2040902@quip.cz>
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Thanks for doing the test. My conditions are different in that i have a gigabit network. The only difference in the iperf options is that i'm using -d (dualmode). On the weekend i will have time to do a test with the NICs set to 100MBit. Sebastian Stach Am 06.06.2012 um 12:18 schrieb Miroslav Lachman: > I am running iperf for more than 11 hours without any problem. More = than 450GB were transmitted. > The NIC is connected to old 100Mbps switch and using first port (em0) = in shared mode for remote management. >=20 > em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu = 1500 > = options=3D4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL= _MAGIC,VLAN_HWTSO> > ether 00:25:90:73:d1:76 > inet xx.xx.xx.xx netmask 0xffffff80 broadcast xx.xx.xx.xx > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active >=20 >=20 > The iperf command on Supermicro side was: >=20 > # iperf -c xx.xx.xx.yy --format k -m -p 999 -t 1800 >=20 >=20 > The other side (Cisco UCS C200 M2) was: >=20 > # iperf -s -p 999 >=20 > Server listening on TCP port 999 > TCP window size: 64.0 KByte (default) > ------------------------------------------------------------ > [ 5] local 94.124.105.117 port 999 connected with 94.124.105.115 port = 29787 > [ 5] 0.0-1799.8 sec 19.5 GBytes 93.0 Mbits/sec > [ 4] local 94.124.105.117 port 999 connected with 94.124.105.115 port = 44792 > [ 4] 0.0-1799.9 sec 19.5 GBytes 93.1 Mbits/sec > [ 5] local 94.124.105.117 port 999 connected with 94.124.105.115 port = 11327 > [ 5] 0.0-1799.9 sec 19.5 GBytes 93.0 Mbits/sec >=20 > Both sides are running FreeBSD 8.3-RELEASE amd64 >=20 >=20 > Let me know if I should run iperf with different options to better = simulate your conditions where your NIC hangs. >=20 > Miroslav Lachman
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