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[Armando Migliaccio <1616250@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Steps to repro:

a) set up a very tiny default subnetpool
b) create plenty of autoallocated topologies for your tenants
c) see SubnetAllocationError: Failed to allocate subnet: Insufficient prefix space to allocate subnet size <bla> and a network staying behind.

** Affects: neutron
     Importance: Low
     Assignee: Armando Migliaccio (armando-migliaccio)
         Status: Confirmed


** Tags: auto-allocated-topology mitaka-backport-potential

** Changed in: neutron
       Status: New => Confirmed

** Changed in: neutron
   Importance: Undecided => Low

** Changed in: neutron
     Assignee: (unassigned) => Armando Migliaccio (armando-migliaccio)

** Tags added: auto-allocated-topology

** Tags added: mitaka-backport-potential

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https://bugs.launchpad.net/bugs/1616250

Title:
  Uncaught SubnetAllocationError leads to dangling networks when using
  auto-allocate operation

Status in neutron:
  Confirmed

Bug description:
  Steps to repro:

  a) set up a very tiny default subnetpool
  b) create plenty of autoallocated topologies for your tenants
  c) see SubnetAllocationError: Failed to allocate subnet: Insufficient prefix space to allocate subnet size <bla> and a network staying behind.

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