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[root at controller-1 ~(keystone_admin)]# neutron router-port-list Router1
+--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+
| id                                   | name | mac_address       |
fixed_ips
              |
+--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+
| 95f3e5a4-81c4-4af2-b8f0-c3ec229d3b91 |      | fa:16:3e:ef:2d:f8 |
{"subnet_id": "88bfba15-1451-4928-9e43-23ee7071f7af", "ip_address":
"64.xx.xx.100"} |
| bf3e5f40-7b43-469f-ab22-4f08e82f73b6 |      | fa:16:3e:8a:62:6b |
{"subnet_id": "7adcc689-afbb-47d5-9ba5-505a3b19a55e", "ip_address":
"192.168.5.5"}   |
| c9e48c7f-7aca-4489-ae61-f28b79cd15cf |      | fa:16:3e:c7:b1:3f |
{"subnet_id": "7adcc689-afbb-47d5-9ba5-505a3b19a55e", "ip_address":
"192.168.5.1"}   |
| f27960d9-80bd-4039-a64e-08d5209beb5f |      | fa:16:3e:ad:2a:cc |
{"subnet_id": "68da8fdd-3ef6-416d-b386-d13d9024f592", "ip_address":
"10.5.2.182"}    |
+--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+

I am trying to delete 64.xx.xx.100 interface but getting weird error

[root at controller-1 ~(keystone_admin)]# neutron router-interface-delete
ddbab37b-1b6d-43a4-8f78-0b8cdc8bf624
88bfba15-1451-4928-9e43-23ee7071f7af
Router ddbab37b-1b6d-43a4-8f78-0b8cdc8bf624 has no interface on subnet
88bfba15-1451-4928-9e43-23ee7071f7af
Neutron server returns request_ids: ['req-06ba6a76-4812-4130-875e-a993d9c45e98']

How should i delete this interface? By mistake i add two external
gateway and not i stuck here