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[Nam <namnh@xxxxxxxxxxxxxx>]

Public bug reported:

I had three controllers.  I found a bug. I can create subnets on one
network that duplicated CIDR range at same timing

How to reproduce:

Topology : http://codepad.org/ff0debPB

Step 1: Create a network
$ neutron net-create test-net

Step 2: Create multiple subnets that duplicated CIDR scope
Please running commands at same timing
 - On controller1:
$ neutron subnet-create --name test-subnet1 test-net 192.168.100.0/24
 - On controller2:
$ neutron subnet-create --name test-subnet2 test-net 192.168.100.0/16

After check database: http://codepad.org/MgVnOeJT

** Affects: neutron
     Importance: Undecided
     Assignee: Nam (namnh)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Nam (namnh)

** Description changed:

  I had three controllers.  I found a bug. I can create subnets on one
  network that duplicated CIDR range at same timing
  
  How to reproduce:
  
- Topology : http://codepad.org/WocbNR3d
+ Topology : http://codepad.org/ff0debPB
  
  Step 1: Create a network
  $ neutron net-create test-net
  
  Step 2: Create multiple subnets that duplicated CIDR scope
  Please running commands at same timing
-  - On controller1:
+  - On controller1:
  $ neutron subnet-create --name test-subnet1 test-net 192.168.100.0/24
-  - On controller2:
+  - On controller2:
  $ neutron subnet-create --name test-subnet2 test-net 192.168.100.0/16
  
  After check database: http://codepad.org/MgVnOeJT

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https://bugs.launchpad.net/bugs/1532695

Title:
  Created subnets on one network that duplicated CIDR  in case of
  neutron server active-active

Status in neutron:
  New

Bug description:
  I had three controllers.  I found a bug. I can create subnets on one
  network that duplicated CIDR range at same timing

  How to reproduce:

  Topology : http://codepad.org/ff0debPB

  Step 1: Create a network
  $ neutron net-create test-net

  Step 2: Create multiple subnets that duplicated CIDR scope
  Please running commands at same timing
   - On controller1:
  $ neutron subnet-create --name test-subnet1 test-net 192.168.100.0/24
   - On controller2:
  $ neutron subnet-create --name test-subnet2 test-net 192.168.100.0/16

  After check database: http://codepad.org/MgVnOeJT

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