** Also affects: quantum (Ubuntu) Importance: Undecided Status: New
** Changed in: neutron Status: New => Invalid ** Changed in: neutron Assignee: Jian Wen (wenjianhn) => (unassigned) ** Changed in: quantum (Ubuntu) Assignee: (unassigned) => Jian Wen (wenjianhn) -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1252603 Title: PMTUD needs to be disabled for tunneling to work in many Grizzly environments. Status in OpenStack Neutron (virtual network service): Invalid Status in “quantum” package in Ubuntu: New Bug description: In Grizzly, the version of OVS is lower than 1.9.0. As a result, tunnel path MTU discovery default value is set to 'enabled'. But internet-wide path MTU discovery rarely works, we need to add a configuration option to disable tunnel path MTU Discovery. Discussion about this issue: Connectivity issue from within the Instances. http://lists.openstack.org/pipermail/openstack/2013-August/000293.html Blog about this issue: Path MTU discovery and GRE. http://techbackground.blogspot.com/2013/06/path-mtu-discovery-and-gre.html Tunnel Path MTU Discovery default value was set to 'disabled' in OVS 1.9.0. Both inheritance of the Don't Fragment bit in IP tunnels (df_inherit) and path MTU discovery are no longer supported in OVS 1.10.0. So Linux distributions that ship with OVS >= 1.9.0 for Havana have no such issue. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1252603/+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