it is defined in neutron_lib, try to update your neutron_lib, by sudo pip install --update neutron_lib
https://github.com/openstack/neutron-lib/blob/0db5c13fc3d0793096446b54fb0bd9b10b1a8bb2/neutron_lib/constants.py#L132 ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1589427 Title: Import undefined attribute PROTO_NAME_IPV6_ICMP_LEGACY Status in neutron: Invalid Bug description: In neutron/common/constants.py, it uses attribute 'PROTO_NAME_IPV6_ICMP_LEGACY' imported from neutron_lib.constants , like this: https://github.com/openstack/neutron/blob/master/neutron/common/constants.py#L61 ``` IP_PROTOCOL_NAME_ALIASES = {lib_constants.PROTO_NAME_IPV6_ICMP_LEGACY: lib_constants.PROTO_NAME_IPV6_ICMP} ``` but the attribute 'PROTO_NAME_IPV6_ICMP_LEGACY' is not defined in neutron_lib.constants. An AttributeError occured: ``` Traceback (most recent call last): File "/usr/bin/neutron-ovs-cleanup", line 6, in <module> from neutron.cmd.ovs_cleanup import main File "/opt/stack/neutron/neutron/cmd/ovs_cleanup.py", line 20, in <module> from neutron.agent.common import config as agent_config File "/opt/stack/neutron/neutron/agent/common/config.py", line 21, in <module> from neutron.common import config File "/opt/stack/neutron/neutron/common/config.py", line 33, in <module> from neutron.common import constants File "/opt/stack/neutron/neutron/common/constants.py", line 62, in <module> lib_constants.PROTO_NAME_IPV6_ICMP} AttributeError: 'module' object has no attribute 'PROTO_NAME_IPV6_ICMP_LEGACY' ``` To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1589427/+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