[ovs-discuss] A Urgent problem about [OVS +DPDK + Ten Gigabit Interface]

Shivaram Mysore shivaram.mysore at gmail.com
Mon Oct 30 16:56:59 UTC 2017


First check your cable - ex. make sure it is CAT6 and of good quality.  It
looks like you are using 10G Copper port.
Also, per my understanding of ethtool, you should run it on interface, for
example:

# ethtool ovs-dpdk-0 | grep Speed

Cheers

On Sun, Oct 29, 2017 at 11:22 PM, 刘君03 <liujun03 at b.360.cn> wrote:

> Hello, OVS friends, I am a novice who uses ovs. Now encounter a thorny
> problem.
>
> Basic environment:CentOS Linux release 7.4.1708 (Core)
>
>                             Linux version 3.10.0-693.2.2.el7.x86_64
>
> Installation procedure reference:http://docs.openvswitch.org/en/latest/
> intro/install/dpdk/
>
>                                                                &
> http://docs.openvswitch.org/en/latest/intro/install/general/
>
> Test Environment:
>
> Urgent problem to show:(1)Tester found: Large loss of data packets when
> 100、1000Mb/s and 10Gb/s
>
>                                                  (2)ethtool command as
> shown below(and can not modify field “speed”):
>
>                                           (3)ovs-vsctl list command as
> shown below(link_speed=10,000,000=10Mb/s,Only “options” fields can be
> manually modified to “link_speed=10G”)
>
>
>
> Urgent problem:(1)Whether a large number of lost packets because
> speed=10Mb/s?How to modify this value?
>
>                             (2)Why create ovs-switch(datapath_type=netdev)will
> make the default link_speed=10Mb/s?
>
> (3)Whether or not special parameter settings are required for
> link_speed=10Gb/s?
>
>
>
> Remarks:(1)Virtual Firewall status is ok.
>
>
>
> _______________________________________________
> discuss mailing list
> discuss at openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
>
>
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