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Date:      Sun, 10 Jun 2012 21:41:03 +0200
From:      Sebastian Stach <sebsta@t-online.de>
To:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: em interfaces supermicro X9SCM-F board / X9SCA-F
Message-ID:  <9F443301-7E86-44D2-8792-4198C827C25D@t-online.de>
In-Reply-To: <4FD30EA3.8060500@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> <3B262A53-C137-4E4E-B1B7-7471B1FBA258@t-online.de> <4FD30EA3.8060500@quip.cz>

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Am 09.06.2012 um 10:51 schrieb Miroslav Lachman:

> Hi,
>=20
> I changed the switch to 1Gbps and run the test again.
>=20
> No problems with the NICs. The iperf is running for 10 hours now. 2TB =
of data was transmitted in both directions.
>=20
> I am running an endless loop on a client side
>=20
> while 1
> iperf -c xx.xx.xx.xx --format k -m -p 999 -t 1800 -d
> sleep 5
> end
>=20
> ------------------------------------------------------------
> Server listening on TCP port 999
> TCP window size: 64.0 KByte (default)
> ------------------------------------------------------------
> ------------------------------------------------------------
> Client connecting to yy.yy.yy.yy, TCP port 999
> TCP window size:  137 KByte (default)
> ------------------------------------------------------------
> [  5] local xx.xx.xx.xx port 18834 connected with yy.yy.yy.yy port 999
> [  4] local xx.xx.xx.xx port 999 connected with yy.yy.yy.yy port 59754
> [ ID] Interval       Transfer     Bandwidth
> [  4]  0.0-1800.0 sec  82823213 KBytes  376938 Kbits/sec
> [  4] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
> [  5]  0.0-1800.0 sec  73954944 KBytes  336575 Kbits/sec
> [  5] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
>=20
>=20
> And another endless loop on server side
>=20
> while 1
> iperf -s -p 999
> end
>=20
> ------------------------------------------------------------
> Server listening on TCP port 999
> TCP window size: 64.0 KByte (default)
> ------------------------------------------------------------
> [  4] local yy.yy.yy.yy port 999 connected with xx.xx.xx.xx port 18834
> ------------------------------------------------------------
> Client connecting to xx.xx.xx.xx, TCP port 999
> TCP window size: 65.0 KByte (default)
> ------------------------------------------------------------
> [  6] local yy.yy.yy.yy port 59754 connected with xx.xx.xx.xx port 999
> Waiting for server threads to complete. Interrupt again to force quit.
> [ ID] Interval       Transfer     Bandwidth
> [  6]  0.0-1800.0 sec  79.0 GBytes   377 Mbits/sec
> [  4]  0.0-1800.0 sec  70.5 GBytes   337 Mbits/sec
>=20
>=20
> Client is on the Supermicro X9SCA-F
>=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 (1000baseT <full-duplex>)
>        status: active
>=20
>=20
> Server is running on the Cisco UCS C200 M2
>=20
> igb0: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> =
metric 0 mtu 1500 =
options=3D401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSU=
M,TSO4,VLAN_HWTSO>
>        ether 50:57:a8:af:eb:0a
>        inet yy.yy.yy.yy netmask 0xffffff80 broadcast yy.yy.yy.yy
>        media: Ethernet autoselect (1000baseT <full-duplex>)
>        status: active
>=20
> Both sides are running FreeBSD 8.3-RELEASE amd64 GENERIC
>=20
> So the only difference is that I am using NIC em0 in shared mode for =
remote management. Can you try your test with shared mode?
>=20
> Miroslav Lachman

I did a test on my system again. My second NIC is working without =
problems
but the first one is still hanging after a while even when configured in =
shared mode.
I will contact the support again and if the issue cannot be resolved =
shortly i will
RMA the board.

Thanks again for doing the test on your system.

Sebastian Stach




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