[USRP-users] about 10 Gig ethernet configuration

Marcus D. Leech mleech at ripnet.com
Mon Oct 19 15:11:48 EDT 2015


On 10/19/2015 03:03 PM, Sanjoy Basak via USRP-users wrote:
> Hi Experts,
> We recently bought a 10 Gig ethernet card (X510-DA2) and 
> Twinaxial-Kabel SFP+ M SFP+ M 3,0m. I installed it in our pc (OS: 
> Ubuntu Mate 14.04.3 LTS) and can communicate with X310/SBX-120 
> properly. However, the performance we are getting is quite poor. I am 
> getting dropped packets (D O) mostly at 25,50 MSps and goes quite 
> crazy at 100 MSps and sometimes even at lower sample rates.
> Previously I tested with 1 Gig ethernet, at 25 MSps I could stream 
> without any drop/late packet or underrun.
> The CPU uses or network uses is also not reaching 100%.
>
> Could you please tell me what to check/correct so I can stream at 100 
> MSps without any error?
>
> I am putting the ifconfig and ethtool results and the kernel 
> version(3.16.0-30-generic)
>
> eth2      Link encap:Ethernet  HWaddr 90:e2:ba:a6:a9:dd
>           inet6 addr: fe80::92e2:baff:fea6:a9dd/64 Scope:Link
>           UP BROADCAST MULTICAST  MTU:9000  Metric:1
>           RX packets:4530726 errors:146 dropped:0 overruns:0 frame:146
>           TX packets:6811057 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:26331306938 (26.3 GB)  TX bytes:35856233935 (35.8 GB)
>
> Settings for eth2:
> Supported ports: [ FIBRE ]
> Supported link modes:   10000baseT/Full
> Supported pause frame use: No
> Supports auto-negotiation: No
> Advertised link modes:  10000baseT/Full
> Advertised pause frame use: No
> Advertised auto-negotiation: No
> Speed: 10000Mb/s
> Duplex: Full
> Port: Other
> PHYAD: 0
> Transceiver: external
> Auto-negotiation: off
> Cannot get wake-on-lan settings: Operation not permitted
> Current message level: 0x00000007 (7)
>       drv probe link
> Link detected: yes
>
> Our computer config is:
> Processor: 12*Intel(R) Xeon (R) CPU E5-2620 v3 @2.40 GHz
> RAM: 65871 MB
> SSD raid 5
>
>
> Best regards
> Sanjoy
>
If there is a newer kernel version, and driver available, try that.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20151019/e1e5ae51/attachment-0002.html>


More information about the USRP-users mailing list