Public bug reported: High level description:
I am unable to influence MTU of br-tun using Neutron configuration settings. I am following instructions provided at the following website (Case 1): http://docs.openstack.org/mitaka/networking-guide/config-mtu.html I deployed OpenStack Mitaka on Ubuntu Trusty. Step-by-step reproduction steps: 1) Deploy OpenStack according to settings specified in "Version" section 2) Follow http://docs.openstack.org/mitaka/networking-guide/config-mtu.html (Case 1) and set: a) "global_physnet_mtu = 9000" b) "path_mtu = 9000" 3) Restart Neutron services on all nodes 4) Create a tenant network 5) Launch an instance Expected output (on compute node with running instance): root@hypervisor3:~# ifconfig br-int | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 root@hypervisor3:~# ifconfig br-tun | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 Actual output (on compute node with running instance): root@hypervisor3:~# ifconfig br-int | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 root@hypervisor3:~# ifconfig br-tun | grep MTU BROADCAST MULTICAST MTU:1500 Metric:1 Version: OpenStack version: Mitaka Neutron version: 8.3.0-0ubuntu1.1~cloud0 Linux distro: Ubuntu 14.04.5 LTS Kernel: 4.4.0-53-generic Tenant network type: VXLAN Deployment mechanism: Juju (charms patched locally to support missing settings) Environment: Separate control and compute nodes Controller services deployed in HA mode inside of LXD containers on control nodes Neutron gateway deployed in HA mode on control nodes Perceived severity: High ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1650329 Title: Unable to influence MTU of br-tun using Neutron configuration settings Status in neutron: New Bug description: High level description: I am unable to influence MTU of br-tun using Neutron configuration settings. I am following instructions provided at the following website (Case 1): http://docs.openstack.org/mitaka/networking-guide/config-mtu.html I deployed OpenStack Mitaka on Ubuntu Trusty. Step-by-step reproduction steps: 1) Deploy OpenStack according to settings specified in "Version" section 2) Follow http://docs.openstack.org/mitaka/networking-guide/config-mtu.html (Case 1) and set: a) "global_physnet_mtu = 9000" b) "path_mtu = 9000" 3) Restart Neutron services on all nodes 4) Create a tenant network 5) Launch an instance Expected output (on compute node with running instance): root@hypervisor3:~# ifconfig br-int | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 root@hypervisor3:~# ifconfig br-tun | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 Actual output (on compute node with running instance): root@hypervisor3:~# ifconfig br-int | grep MTU BROADCAST MULTICAST MTU:8950 Metric:1 root@hypervisor3:~# ifconfig br-tun | grep MTU BROADCAST MULTICAST MTU:1500 Metric:1 Version: OpenStack version: Mitaka Neutron version: 8.3.0-0ubuntu1.1~cloud0 Linux distro: Ubuntu 14.04.5 LTS Kernel: 4.4.0-53-generic Tenant network type: VXLAN Deployment mechanism: Juju (charms patched locally to support missing settings) Environment: Separate control and compute nodes Controller services deployed in HA mode inside of LXD containers on control nodes Neutron gateway deployed in HA mode on control nodes Perceived severity: High To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1650329/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
