Orphaned vpn-portip-to-port entry after delete Floating IP

vpn-portip-to-port entry for Floating IP remains after deleting the Floating IP. This entry might prevent PNF with same IP to be discovered via Subnet Route.

Version Tested: master, nitrogen

Reproduction Steps:

1) Create network/subnet

2) Create VMs (10.100.1.12, 10.100.1.9)

3) Create Router

4) Attach subnet to router

5) create external network/subnet

6) add Floating IP for VMs (192.168.56.13 and 192.168.56.17)

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7) Remove above FIPs 

The entries vpn-portip-to-port for Floating IPs remain inm DS  even though the neutron ports for FIPS is deleted.

 

"neutron-vpn-portip-port-data": {
"vpn-portip-to-port": [

..

{ "mac-address": "fa:16:3e:53:fd:46", "port-fixedip": "192.168.56.17", "port-name": "1fab34d8-9e1c-426c-98a4-26fb8a598f8f", "subnet-ip": false, "vpn-name": "b797eb84-d797-4e42-bb76-6e0620ba78e9" }

,
..
"mac-address": "fa:16:3e:d3:f0:13",
"port-fixedip": "192.168.56.13",
"port-name": "ab1e89e9-1070-46e7-8d8a-d9c88d49ee94",
"subnet-ip": false,
"vpn-name": "b797eb84-d797-4e42-bb76-6e0620ba78e9"
}
]