[Openstack] why neutron router interfaces are done ?

b t 905ben at gmail.com
Sat Oct 4 04:25:14 UTC 2014


just figured out the problem !

following the icehouse installation guide for Ubuntu , page 55 .
the guide is like:
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
use_namespaces = True

what I put in is :
interface_driver =
neutron.agent.linux.interface.OVSInterfaceDriveruse_namespaces = True

after modify this part , all is working , and VM can traceroute to internet
.

thanks !

On Sat, Oct 4, 2014 at 12:15 AM, James Denton <james.denton at rackspace.com>
wrote:

>  Which version of OpenStack? If the router is plugged into br-ex and not
> br-int you may see this condition. Often, an external bridge like br-ex is
> not properly configured, leading to issues. You might try creating a
> provider bridge using the ovs-vsctl tool, defining the mapping in the
> plugin configuration file, and using router-gateway-set to associate the
> router with that network.
>
>  It would help to see your 'ovs-vsctl show' output along with the plugin
> configuration file and a 'neutron net-show <netid>' of the external network.
>
>  James
>  ------------------------------
> *From:* b t [905ben at gmail.com]
> *Sent:* Friday, October 03, 2014 8:52 PM
> *To:* openstack at lists.openstack.org
> *Subject:* [Openstack] why neutron router interfaces are done ?
>
>   hi,
> VM works fine and can ping each other within the same project .
> But VM can not ping gateway , not able to ping router external interface
> from external .
>
>  here is the port-show and noticed ports are down .
> any idea ?   thanks !
>
>
>
>  root at network:/etc# neutron port-show 7d2e7645-5a05-4eb6-ae9a-50ac627aac67
>
> +-----------------------+------------------------------------------------------------------------------------+
> | Field                 | Value
>                                    |
>
> +-----------------------+------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                   |
> | allowed_address_pairs |
>                                    |
> | binding:host_id       |
>                                    |
> | binding:profile       | {}
>                                   |
> | binding:vif_details   | {}
>                                   |
> | binding:vif_type      | unbound
>                                    |
> | binding:vnic_type     | normal
>                                   |
> | device_id             | 84fa4241-4c94-4260-880c-b6092c73c4c0
>                                   |
> | device_owner          | network:router_interface
>                                   |
> | extra_dhcp_opts       |
>                                    |
> | fixed_ips             | {"subnet_id":
> "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.1"} |
> | id                    | 7d2e7645-5a05-4eb6-ae9a-50ac627aac67
>                                   |
> | mac_address           | fa:16:3e:d5:41:d9
>                                    |
> | name                  |
>                                    |
> | network_id            | cc3ef6ae-7015-49cb-8b0d-49d7acd60601
>                                   |
> | security_groups       |
>                                    |
> | status                | DOWN
>                                   |
> | tenant_id             | e550fba3fa3743b0930c35d9b90f02e4
>                                   |
>
> +-----------------------+------------------------------------------------------------------------------------+
> root at network:/etc# neutron port-show 22495eeb-0856-4cd0-b8f5-55d9500b61f5
>
> +-----------------------+------------------------------------------------------------------------------------+
> | Field                 | Value
>                                    |
>
> +-----------------------+------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                   |
> | allowed_address_pairs |
>                                    |
> | binding:host_id       | compute1
>                                   |
> | binding:profile       | {}
>                                   |
> | binding:vif_details   | {"port_filter": true, "ovs_hybrid_plug": true}
>                                   |
> | binding:vif_type      | ovs
>                                    |
> | binding:vnic_type     | normal
>                                   |
> | device_id             | c66f0ddf-3209-46c0-b21c-55cfee02d115
>                                   |
> | device_owner          | compute:None
>                                   |
> | extra_dhcp_opts       |
>                                    |
> | fixed_ips             | {"subnet_id":
> "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.2"} |
> | id                    | 22495eeb-0856-4cd0-b8f5-55d9500b61f5
>                                   |
> | mac_address           | fa:16:3e:73:36:97
>                                    |
> | name                  |
>                                    |
> | network_id            | cc3ef6ae-7015-49cb-8b0d-49d7acd60601
>                                   |
> | security_groups       | 0fff99c8-b889-4863-8bbb-57336e060f5e
>                                   |
> | status                | ACTIVE
>                                   |
> | tenant_id             | e550fba3fa3743b0930c35d9b90f02e4
>                                   |
>
> +-----------------------+------------------------------------------------------------------------------------+
> root at network:/etc# neutron port-show 18af3bf9-300d-477a-b38e-9cfd49bf152f
>
> +-----------------------+------------------------------------------------------------------------------------+
> | Field                 | Value
>                                    |
>
> +-----------------------+------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                   |
> | allowed_address_pairs |
>                                    |
> | binding:host_id       | network
>                                    |
> | binding:profile       | {}
>                                   |
> | binding:vif_details   | {"port_filter": true, "ovs_hybrid_plug": true}
>                                   |
> | binding:vif_type      | ovs
>                                    |
> | binding:vnic_type     | normal
>                                   |
> | device_id             |
> dhcp7b60c1d9-602e-5110-8c89-a9475b89732c-cc3ef6ae-7015-49cb-8b0d-49d7acd60601
>      |
> | device_owner          | network:dhcp
>                                   |
> | extra_dhcp_opts       |
>                                    |
> | fixed_ips             | {"subnet_id":
> "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.3"} |
> | id                    | 18af3bf9-300d-477a-b38e-9cfd49bf152f
>                                   |
> | mac_address           | fa:16:3e:fa:f3:93
>                                    |
> | name                  |
>                                    |
> | network_id            | cc3ef6ae-7015-49cb-8b0d-49d7acd60601
>                                   |
> | security_groups       |
>                                    |
> | status                | ACTIVE
>                                   |
> | tenant_id             | e550fba3fa3743b0930c35d9b90f02e4
>                                   |
>
> +-----------------------+------------------------------------------------------------------------------------+
> root at network:/etc#
> root at network:/etc# neutron port-show da78d28b-3d76-4b6c-a19d-755e6e4a4f4e
>
> +-----------------------+------------------------------------------------------------------------------------+
> | Field                 | Value
>                                    |
>
> +-----------------------+------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                   |
> | allowed_address_pairs |
>                                    |
> | binding:host_id       | compute1
>                                   |
> | binding:profile       | {}
>                                   |
> | binding:vif_details   | {"port_filter": true, "ovs_hybrid_plug": true}
>                                   |
> | binding:vif_type      | ovs
>                                    |
> | binding:vnic_type     | normal
>                                   |
> | device_id             | e9c9fe44-8d55-4b92-bf50-d6d1f630fcae
>                                   |
> | device_owner          | compute:None
>                                   |
> | extra_dhcp_opts       |
>                                    |
> | fixed_ips             | {"subnet_id":
> "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.4"} |
> | id                    | da78d28b-3d76-4b6c-a19d-755e6e4a4f4e
>                                   |
> | mac_address           | fa:16:3e:92:a5:5c
>                                    |
> | name                  |
>                                    |
> | network_id            | cc3ef6ae-7015-49cb-8b0d-49d7acd60601
>                                   |
> | security_groups       | 0fff99c8-b889-4863-8bbb-57336e060f5e
>                                   |
> | status                | ACTIVE
>                                   |
> | tenant_id             | e550fba3fa3743b0930c35d9b90f02e4
>                                   |
>
> +-----------------------+------------------------------------------------------------------------------------+
> root at network:/etc#
> root at network:/etc# neutron port-show 971bae03-1fb9-47ec-a3fa-7a0b1803a197
>
> +-----------------------+--------------------------------------------------------------------------------------+
> | Field                 | Value
>                                      |
>
> +-----------------------+--------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                     |
> | allowed_address_pairs |
>                                      |
> | binding:host_id       |
>                                      |
> | binding:profile       | {}
>                                     |
> | binding:vif_details   | {}
>                                     |
> | binding:vif_type      | unbound
>                                      |
> | binding:vnic_type     | normal
>                                     |
> | device_id             | 84fa4241-4c94-4260-880c-b6092c73c4c0
>                                     |
> | device_owner          | network:router_gateway
>                                     |
> | extra_dhcp_opts       |
>                                      |
> | fixed_ips             | {"subnet_id":
> "f537da7b-9e71-4ff5-a0b5-3656c1754f26", "ip_address": "192.168.3.101"} |
> | id                    | 971bae03-1fb9-47ec-a3fa-7a0b1803a197
>                                     |
> | mac_address           | fa:16:3e:d2:e0:b2
>                                      |
> | name                  |
>                                      |
> | network_id            | 55a98729-05dd-4b73-abe2-54c13effe81e
>                                     |
> | security_groups       |
>                                      |
> | status                | DOWN
>                                     |
> | tenant_id             |
>                                      |
>
> +-----------------------+--------------------------------------------------------------------------------------+
> root at network:/etc#
> root at network:/etc# neutron port-show 84fa16ab-a507-4224-8932-f7046095a9f3
>
> +-----------------------+--------------------------------------------------------------------------------------+
> | Field                 | Value
>                                      |
>
> +-----------------------+--------------------------------------------------------------------------------------+
> | admin_state_up        | True
>                                     |
> | allowed_address_pairs |
>                                      |
> | binding:host_id       |
>                                      |
> | binding:profile       | {}
>                                     |
> | binding:vif_details   | {}
>                                     |
> | binding:vif_type      | unbound
>                                      |
> | binding:vnic_type     | normal
>                                     |
> | device_id             | 05ccb9d2-d905-4c1b-8a3a-d22e45445358
>                                     |
> | device_owner          | network:router_gateway
>                                     |
> | extra_dhcp_opts       |
>                                      |
> | fixed_ips             | {"subnet_id":
> "f537da7b-9e71-4ff5-a0b5-3656c1754f26", "ip_address": "192.168.3.102"} |
> | id                    | 84fa16ab-a507-4224-8932-f7046095a9f3
>                                     |
> | mac_address           | fa:16:3e:85:04:3d
>                                      |
> | name                  |
>                                      |
> | network_id            | 55a98729-05dd-4b73-abe2-54c13effe81e
>                                     |
> | security_groups       |
>                                      |
> | status                | DOWN
>                                     |
> | tenant_id             |
>                                      |
>
> +-----------------------+--------------------------------------------------------------------------------------+
> root at network:/etc#
>
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