[Yahoo-eng-team] [Bug 1494336] Re: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router
** Changed in: neutron/kilo Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1494336 Title: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router Status in neutron: Fix Released Status in neutron kilo series: Fix Released Bug description: For an HA Router which does not have any subnets in the external network, Neutron sets the IPv6 proc entry[1] on the gateway interface to receive Router Advts from external IPv6 router and configure a default route pointing to the LLA of the external IPv6 Router. Normally for an HA Router in the backup state, Neutron removes Link Local Address (LLA) from the gateway interface. In Kernel version 3.10 when the last IPv6 address is removed from the interface, IPv6 is shutdown on the iface and the proc entries corresponding to the iface are deleted (i.e., /proc/sys/net/ipv6/conf/) This issue is resolved in the later kernels [2], but the issue exists on platforms with Kernel version 3.10 When IPv6 proc entries are missing and Neutron tries to configure the proc entry we see the following traceback [3] in Neutron. [1] /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra [2] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=876fd05ddbae03166e7037fca957b55bb3be6594 [3] Trace: Command: ['ip', 'netns', 'exec', 'qrouter-e66b99aa-e840-4a13-9311-6242710a5452', 'sysctl', '-w', 'net.ipv6.conf.qg-1fc4061d-3c.accept_ra=2'] Exit code: 255 Stdin: Stdout: Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra: No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1494336/+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
[Yahoo-eng-team] [Bug 1494336] Re: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router
** Also affects: neutron/kilo Importance: Undecided Status: New ** Changed in: neutron/kilo Status: New => Fix Committed ** Changed in: neutron/kilo Milestone: None => 2015.1.2 -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1494336 Title: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router Status in neutron: Fix Released Status in neutron kilo series: Fix Committed Bug description: For an HA Router which does not have any subnets in the external network, Neutron sets the IPv6 proc entry[1] on the gateway interface to receive Router Advts from external IPv6 router and configure a default route pointing to the LLA of the external IPv6 Router. Normally for an HA Router in the backup state, Neutron removes Link Local Address (LLA) from the gateway interface. In Kernel version 3.10 when the last IPv6 address is removed from the interface, IPv6 is shutdown on the iface and the proc entries corresponding to the iface are deleted (i.e., /proc/sys/net/ipv6/conf/) This issue is resolved in the later kernels [2], but the issue exists on platforms with Kernel version 3.10 When IPv6 proc entries are missing and Neutron tries to configure the proc entry we see the following traceback [3] in Neutron. [1] /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra [2] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=876fd05ddbae03166e7037fca957b55bb3be6594 [3] Trace: Command: ['ip', 'netns', 'exec', 'qrouter-e66b99aa-e840-4a13-9311-6242710a5452', 'sysctl', '-w', 'net.ipv6.conf.qg-1fc4061d-3c.accept_ra=2'] Exit code: 255 Stdin: Stdout: Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra: No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1494336/+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
[Yahoo-eng-team] [Bug 1494336] Re: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router
** Changed in: neutron Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1494336 Title: Neutron traceback when an external network without IPv6 subnet is attached to an HA Router Status in neutron: Fix Released Bug description: For an HA Router which does not have any subnets in the external network, Neutron sets the IPv6 proc entry[1] on the gateway interface to receive Router Advts from external IPv6 router and configure a default route pointing to the LLA of the external IPv6 Router. Normally for an HA Router in the backup state, Neutron removes Link Local Address (LLA) from the gateway interface. In Kernel version 3.10 when the last IPv6 address is removed from the interface, IPv6 is shutdown on the iface and the proc entries corresponding to the iface are deleted (i.e., /proc/sys/net/ipv6/conf/) This issue is resolved in the later kernels [2], but the issue exists on platforms with Kernel version 3.10 When IPv6 proc entries are missing and Neutron tries to configure the proc entry we see the following traceback [3] in Neutron. [1] /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra [2] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=876fd05ddbae03166e7037fca957b55bb3be6594 [3] Trace: Command: ['ip', 'netns', 'exec', 'qrouter-e66b99aa-e840-4a13-9311-6242710a5452', 'sysctl', '-w', 'net.ipv6.conf.qg-1fc4061d-3c.accept_ra=2'] Exit code: 255 Stdin: Stdout: Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/qg-1fc4061d-3c/accept_ra: No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1494336/+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
