Public bug reported: The linuxbridge agent creates a linux vlan-device for each openstack vlan network that has been defined. Therefore the code uses the following naming scheme : <eth-dev-name>.<vlan-id> Example: eth-dev-name: eth0, vlan-id: 1000 --> eth0.1000
This works fine, if eth-dev-name is a short name like "eth0". If there is a long device name (e.g. long-device-name) this will cause trouble, as the vlan device name "long-device-name.1000" exceeds the max length of a linux network device, which is 15 chars. Today the linuxbridge agent fails with Command: ['ip', 'link', 'add', 'link', 'too_long_name', 'name', 'too_long_name.1007', 'type', 'vlan', 'id', 1007] Exit code: 255 Stderr: Error: argument "too_long_name.1007" is wrong: "name" too long The same problem needs to be solved for the new macvtap agent that is currently under development [1] as well [1] https://bugs.launchpad.net/neutron/+bug/1480979 ** 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/1495960 Title: linuxbridge with vlan crashes when long device names used Status in neutron: New Bug description: The linuxbridge agent creates a linux vlan-device for each openstack vlan network that has been defined. Therefore the code uses the following naming scheme : <eth-dev-name>.<vlan-id> Example: eth-dev-name: eth0, vlan-id: 1000 --> eth0.1000 This works fine, if eth-dev-name is a short name like "eth0". If there is a long device name (e.g. long-device-name) this will cause trouble, as the vlan device name "long-device-name.1000" exceeds the max length of a linux network device, which is 15 chars. Today the linuxbridge agent fails with Command: ['ip', 'link', 'add', 'link', 'too_long_name', 'name', 'too_long_name.1007', 'type', 'vlan', 'id', 1007] Exit code: 255 Stderr: Error: argument "too_long_name.1007" is wrong: "name" too long The same problem needs to be solved for the new macvtap agent that is currently under development [1] as well [1] https://bugs.launchpad.net/neutron/+bug/1480979 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1495960/+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
