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[Bug 1240125] Re: Linux IP wrapper cannot handle VLAN interfaces

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 04 Dec 2013 11:28:19 -0000
Reply-to: Bug 1240125 <1240125@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1240125

Title:
  Linux IP wrapper cannot handle VLAN interfaces

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Interface VLAN name have a '@' character in their names when iproute2 utility list them.
  But the usable interface name (for iproute2 commands) is the string before the '@' character, so this interface need a special parse.

  $ ip link show
  1: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
      link/ether 6c:88:14:b7:fe:80 brd ff:ff:ff:ff:ff:ff
      inet 169.254.10.78/16 brd 169.254.255.255 scope link wlan0:avahi
         valid_lft forever preferred_lft forever
  2: wlan0.10@wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default 
      link/ether 6c:88:14:b7:fe:80 brd ff:ff:ff:ff:ff:ff
  3: vlan100@wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default 
      link/ether 6c:88:14:b7:fe:80 brd ff:ff:ff:ff:ff:ff

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