DM: IRB IP leaked if VN<->PR link deleted/re-added

[amit surana]

When a VN is extended to a physical router, DM allocates an IP address for the IRB interface. When the VN<->PR association is broken, DM tries to free the allocated IP, but this call fails. As a result, the IP address that was previously allocated, is no longer available in the free pool.

[Suresh Balineni (sbalineni)]

R2.20 virtual_network_ip_free() is not working.

[Atul Moghe (moghea)]

ip alloc, ip_free issue is resolved with 1487514. We will have to test this a build available after this checkin
https://review.opencontrail.org/#/c/13230/

Please retest to make sure that we dont have any other issue.

[Nischal Sheth (nsheth)]

Should be resolved via the fix for bug 1487514.

[amit surana (asurana-t)]

This bug isn't resolved by the fix for 1487514.

11/25/2015 10:39:09 AM [DeviceManager]: Exception: HTTP Status: 500 Content: Internal Server Error
11/25/2015 10:39:09 AM [DeviceManager]: Unable to free ip for vn/subnet/pr (33c333af-ec56-4f6f-8a91-3e035ef6c010/1.1.1.0/24/25467749-3af5-4b3d-aaf7-a2e380bc32f9)