em interfaces supermicro X9SCM-F board / X9SCA-F

[Sebastian Stach]

Am 09.06.2012 um 10:51 schrieb Miroslav Lachman:

> Hi,
> 
> I changed the switch to 1Gbps and run the test again.
> 
> No problems with the NICs. The iperf is running for 10 hours now. 2TB of data was transmitted in both directions.
> 
> I am running an endless loop on a client side
> 
> while 1
> iperf -c xx.xx.xx.xx --format k -m -p 999 -t 1800 -d
> sleep 5
> end
> 
> ------------------------------------------------------------
> 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)
> 
> 
> And another endless loop on server side
> 
> while 1
> iperf -s -p 999
> end
> 
> ------------------------------------------------------------
> 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
> 
> 
> Client is on the Supermicro X9SCA-F
> 
> em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=4219b<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
> 
> 
> Server is running on the Cisco UCS C200 M2
> 
> igb0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,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
> 
> Both sides are running FreeBSD 8.3-RELEASE amd64 GENERIC
> 
> 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?
> 
> 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