Driver Ver 2.48

Intel Ethernet Drivers and Utilities

driver ver 2.48

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Tested with 1G i350 nic igb driver ver:5.0.5-k Once I bond 1G nic got add into bond0 port, Packet drop on driver 1.2.48 under Centos6.6 kvm openvswitch 2.1.3.

Current 1.2.48 driver has packet drop issue under certain environment setup.

Kernel version: 2.6.32-504.23.4.el6.x86_64 Centos 6.6 x64

openvswitch version:2.1.3

Nic type 1: Intel 82599 dual sfp Driver:ixgbe 3.1.9-k and 4.1.1

Nic type 2: Intel XL710 quad sfp Driver:i40e

Testing is proceeded in following procedure.

1. standalone nic port no bonding mode. Pass: no packet drop

2. Bonding 82599 dual sfp only and ping gateway Pass: no packet drop

3. Bonding XL710 quad port sfp only and ping gateway Pass: no packet drop

4. Bonding XL710 quad port sfp AND 82599 dual port sfp and ping gateway Fail: 30-50 packet drop

ovs cmd: ovs-vsctl add-bond

My bond mode is active backup.

Summary:

I tested from 1.2.38-- 1.2.46-- 1.2.48

Result is as follow.

1.2.38: totally not working under bonding mode. Even I rmmod ixgbe driver and left only i40e driver in system. If I remember it correctly, I can t even ping out.

1.2.46: It s better. ping gateway result is better. But, sometimes, I can t even ping gateway at all. I can t get reliable result. Sometimes, I totally can t ping gateway and sometimes I got various packet drop rate.

1.2.48: It s the best so far. If I only bond i40e or ixgbe only port individually in openvswitch setting, I didn t experience any packet drop at all.

Note: I also tested latest ixgbe driver v4.1.1. It doesn t make any difference in this testing.

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driver ver 2.48

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