** Changed in: neutron
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1694120
Title:
routed-networks - segments subnet dhcp port bind to wrong segment
Status in neutron:
Invalid
Bug description:
$ openstack network list -f json
[]
$ openstack network create ctlplane
Network created, and we have 1 default segment:
$ openstack network segment list --network ctlplane -f json
[
{
"Network": "89e4aa6c-06f2-4348-9576-bec17c7526d6",
"Network Type": "local",
"Segment": null,
"ID": "46950790-717b-4d31-883a-a8d9d3df2e92",
"Name": null
}
]
$ openstack network segment create subnet0 --physical-network
ctlplane --network ctlplane --network-type flat
$ openstack subnet create --subnet-range 172.20.0.0/26 --dhcp
--gateway 172.20.0.62 --ip-version 4 --network ctlplane --network-
segment subnet0 --allocation-pool start=172.20.0.10,end=172.20.0.19
subnet0
(undercloud) [stack@ocataleafs ~]$ sudo ip netns list
qdhcp-89e4aa6c-06f2-4348-9576-bec17c7526d6
(undercloud) [stack@ocataleafs ~]$ sudo ip netns exec
qdhcp-89e4aa6c-06f2-4348-9576-bec17c7526d6 ip addr show | grep tap
13: tap0170296c-f2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UNKNOWN qlen 1000
inet 172.20.0.10/26 brd 172.20.0.63 scope global tap0170296c-f2
(undercloud) [stack@ocataleafs ~]$ sudo ip netns exec
qdhcp-89e4aa6c-06f2-4348-9576-bec17c7526d6 ping 172.20.0.62
PING 172.20.0.62 (172.20.0.62) 56(84) bytes of data.
From 172.20.0.10 icmp_seq=1 Destination Host Unreachable
From 172.20.0.10 icmp_seq=2 Destination Host Unreachable
$ openstack network segment list -f json
[
{
"Network": "89e4aa6c-06f2-4348-9576-bec17c7526d6",
"Network Type": "local",
"Segment": null,
"ID": "46950790-717b-4d31-883a-a8d9d3df2e92",
"Name": null
},
{
"Network": "89e4aa6c-06f2-4348-9576-bec17c7526d6",
"Network Type": "flat",
"Segment": null,
"ID": "32a308e9-6f2e-4252-a273-95c7bfbcc94e",
"Name": "subnet0"
}
]
(undercloud) [stack@ocataleafs ~]$ openstack network segment delete
46950790-717b-4d31-883a-a8d9d3df2e92
Failed to delete network segment with ID
'46950790-717b-4d31-883a-a8d9d3df2e92': HttpException: Conflict (HTTP 409)
(Request-ID: req-8b1a5179-c987-47ba-b35a-68c9afdca4bc), Segment
'46950790-717b-4d31-883a-a8d9d3df2e92' cannot be deleted: The segment is still
bound with port(s) 0170296c-f2e5-4482-843a-3ebb0bf11381.
1 of 1 network segments failed to delete.
The dhcp-namespace port did not bind to the segment associated with
subnet0, it bound to the default segment that is automatically created
when creating a network.
If I change the workflow to first delete the default segment, and then
create segment: subnet0 + subnet: subnet0 the dhcp namespace is wired
correctly.
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