Re: [Openstack-operators] Intel 10 GbE / bonding issue with hash policy layer3+4

2016-03-29 Thread Sascha Vogt
Hi Kevin, Am 24.03.2016 um 16:44 schrieb Fox, Kevin M: > We saw a problem recently with layer3+4. We're still working on it, > but a possible datapoint: > We had them connected through a cisco switch and saw iperf only use > 50% of capacity about 50% of the runs, and most of the rest of the time >

Re: [Openstack-operators] Intel 10 GbE / bonding issue with hash policy layer3+4

2016-03-29 Thread Sascha Vogt
Hi Stig, Am 24.03.2016 um 11:10 schrieb Stig Telfer: > I had a similar experience earlier this week. I was testing bond performance on a dual-port Mellanox NIC, LACP-bonded with layer 3+4 transmit hash. First run of iperf (8 streams), I saw a reasonable distribution across the links. Shortly after

Re: [Openstack-operators] Intel 10 GbE / bonding issue with hash policy layer3+4

2016-03-29 Thread Sascha Vogt
Hi Tom, first of all, thanks for your response and sorry for my late response :) Easter (+ a bit of relax time) got in between. Am 23.03.2016 um 16:45 schrieb MailingLists - EWS: > What version of the ixgbe driver are you using? Is it the same on both > kernels? Have you tried the latest "out of

[Openstack-operators] Intel 10 GbE / bonding issue with hash policy layer3+4

2016-03-23 Thread Sascha Vogt
Hi all, I thought it might be of interest / get feedback from the operators community about an oddity we experienced with Intel 10 GbE NICs and LACP bonding. We have Ubuntu 14.04.4 as OS and Intel 10 GbE NICs with the ixgbe Kernel module. We use VLANS for ceph-client, ceph-data, openstack-data, o