Hi Darragh, I was referring at the fact that running bandwidth tests from an instance showed good results (downloaded ~300 MB in 70s, or obtained 90.15 Mbit/s during a speedtest) -> see the end of comment 6.
Below are some more details about my network node: root@quantum-network:~# ovs-vsctl -V ovs-vsctl (Open vSwitch) 1.10.2 Compiled Oct 8 2013 15:09:03 root@quantum-network:~# uname -a Linux quantum-network.tor.lab 3.2.0-56-generic #86-Ubuntu SMP Wed Oct 23 09:20:45 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux root@quantum-network:~# ovs-vsctl list-ports br-ex eth0 qg-bb60f501-45 root@quantum-network:~# ethtool -k eth0 Offload parameters for eth0: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp-segmentation-offload: on udp-fragmentation-offload: off generic-segmentation-offload: on generic-receive-offload: on large-receive-offload: off rx-vlan-offload: on tx-vlan-offload: on ntuple-filters: off receive-hashing: on root@quantum-network:~# ethtool -i eth0 driver: bnx2 version: 2.1.11 firmware-version: bc 4.4.1 UMP 1.1.9 bus-info: 0000:03:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes Maybe the issue was introduced in later kernels and the GRO fix is needed there, but I don't experience this issue in kernel 3.2.0-56. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252900 Title: Directional network performance issues with Neutron + OpenvSwitch To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1252900/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
