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

刘君03 liujun03 at b.360.cn
Mon Oct 30 06:22:30 UTC 2017


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:
[cid:image005.png at 01D3518A.2B0486D0]
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”):
[cid:image003.png at 01D35173.2338A4C0]
                                          (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”)
[cid:image004.png at 01D35188.BF945D90]

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.

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