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[zhaobo <zhaobo6@xxxxxxxxxx>]

Public bug reported:

I create subnetpool like:
neutron subnetpool-create --pool-prefix 6.6.6.6/24 --pool-prefix 9.9.9.9/30 --pool-prefix 8.8.8.8/20 test2
And then I create a subnet from this subnetpool.The returned message is like:
neutron subnet-create test --subnetpool test2
Failed to allocate subnet: Insufficient prefix space to allocate subnet size /8

But when it contains *.*.*.*/8 which the prefixlen is 8 . Just like:
neutron subnetpool-create --pool-prefix 6.6.6.6/8 --pool-prefix 9.9.9.9/30 --pool-prefix 8.8.8.8/20 test2
And the subnet creation will be success.

The subnetpool's default_prefixlen is always 8.And this may make user to input cidr which the prefixlen is 8.
I think when use the subnetpool to create subnet, it should get one of pool and cannot limit according to the default prefixlen.

** Affects: neutron
     Importance: Undecided
     Assignee: zhaobo (zhaobo6)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => zhaobo (zhaobo6)

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https://bugs.launchpad.net/bugs/1483103

Title:
  When subnetpool didn't follow the cidr's prefix which input at the
  subnetpool creation.

Status in neutron:
  New

Bug description:
  I create subnetpool like:
  neutron subnetpool-create --pool-prefix 6.6.6.6/24 --pool-prefix 9.9.9.9/30 --pool-prefix 8.8.8.8/20 test2
  And then I create a subnet from this subnetpool.The returned message is like:
  neutron subnet-create test --subnetpool test2
  Failed to allocate subnet: Insufficient prefix space to allocate subnet size /8

  But when it contains *.*.*.*/8 which the prefixlen is 8 . Just like:
  neutron subnetpool-create --pool-prefix 6.6.6.6/8 --pool-prefix 9.9.9.9/30 --pool-prefix 8.8.8.8/20 test2
  And the subnet creation will be success.

  The subnetpool's default_prefixlen is always 8.And this may make user to input cidr which the prefixlen is 8.
  I think when use the subnetpool to create subnet, it should get one of pool and cannot limit according to the default prefixlen.

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