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[Bug 1311002] [NEW] ip-lib : "ip neigh" command should use "replace" instead of "add"

 

Public bug reported:

with l2-population and linuxbridge agent, we used to use "ip neigh" command to add arp responder entries : 
this command has been generalized with this patch :
https://review.openstack.org/#/c/88442/3

but using "ip neigh add" leads to a bug when restoring a previous entry : 
https://bugs.launchpad.net/neutron/+bug/1282662

we should use "ip neigh replace" instead of "ip neigh add'"

** Affects: neutron
     Importance: Undecided
     Assignee: Mathieu Rohon (mathieu-rohon)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Mathieu Rohon (mathieu-rohon)

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https://bugs.launchpad.net/bugs/1311002

Title:
  ip-lib : "ip neigh" command should use "replace" instead of "add"

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  with l2-population and linuxbridge agent, we used to use "ip neigh" command to add arp responder entries : 
  this command has been generalized with this patch :
  https://review.openstack.org/#/c/88442/3

  but using "ip neigh add" leads to a bug when restoring a previous entry : 
  https://bugs.launchpad.net/neutron/+bug/1282662

  we should use "ip neigh replace" instead of "ip neigh add'"

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