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[Robert Kukura <1276395@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

ML2 mechanism driver methods such as port_update_precommit() and
port_update_postcommit() are currently called by the plugin as part of
operations in which port bindings are established and/or torn down.
Within these methods, details about the newly established or current
binding, such as the binding:vif_type attribute and the bound segment,
are available from the PortContext object. Similar details for a binding
that is being  torn down as part of a port update or delete operation
are needed by some mechanism drivers, but are not currently available
from the PortContext.

** Affects: neutron
     Importance: High
     Assignee: Robert Kukura (rkukura)
         Status: New


** Tags: ml2

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https://bugs.launchpad.net/bugs/1276395

Title:
  Port binding details needed by ML2 mechanism drivers

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  ML2 mechanism driver methods such as port_update_precommit() and
  port_update_postcommit() are currently called by the plugin as part of
  operations in which port bindings are established and/or torn down.
  Within these methods, details about the newly established or current
  binding, such as the binding:vif_type attribute and the bound segment,
  are available from the PortContext object. Similar details for a
  binding that is being  torn down as part of a port update or delete
  operation are needed by some mechanism drivers, but are not currently
  available from the PortContext.

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