Hi, My setup Contoller+Network node -- 2 nics ( internal+vm, external) 2x Compute -- 2 nics (internal+vm, external) I have used packstack to set the environment up. The VMs on compute node are unable to contact controller node. tcpdump shows me that the packets never make it to controller node On compute node --snip-- tcpdump -i br-vm | grep -i dhcp 17:25:52.476521 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:3e:ca:c2 (oui Unknown), length 281 17:27:52.598709 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:3e:ca:c2 (oui Unknown), length 281 --snip-- On controller node the above packets never make it logs for /var/log/neutron/openvswitch-agent.log on compute node : --snip-- 2014-08-22 17:17:38.793 29698 INFO neutron.agent.securitygroups_rpc [req-faf30bbb-de0c-4f41-8fcb-cf9f09cfd141 None] Security group member updated [u'292c5a84-5c31-4158-858d-8261a6ea9680'] 2014-08-22 17:18:08.231 29698 WARNING neutron.agent.linux.ovs_lib [-] Found failed openvswitch port: [u'int-br-ex', [u'map', []], -1] 2014-08-22 17:18:08.348 29698 INFO neutron.agent.securitygroups_rpc [-] Preparing filters for devices set([u'739aff99-7472-4e5c-921b-095005830f61']) 2014-08-22 17:18:08.391 29698 INFO neutron.openstack.common.rpc.common [-] Connected to AMQP server on 10.5.0.31:5672 2014-08-22 17:18:09.162 29698 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Port 739aff99-7472-4e5c-921b-095005830f61 updated. Details: {u'admin_state_up': True, u'network_id': u'16e331e2-3502-4d72-8a91-8931bb90263c', u'segmentation_id': 100, u'physical_network': u'tvlan', u'device': u'739aff99-7472-4e5c-921b-095005830f61', u'port_id': u'739aff99-7472-4e5c-921b-095005830f61', u'network_type': u'vlan'} 2014-08-22 17:18:09.162 29698 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Assigning 1 as local vlan for net-id=16e331e2-3502-4d72-8a91-8931bb90263c 2014-08-22 17:18:09.639 29698 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Configuration for device 739aff99-7472-4e5c-921b-095005830f61 completed. --snip-- logs for /var/log/neutron/server.log on controller : --snip-- 2014-08-22 17:18:01.996 3131 INFO neutron.wsgi [req-6dbeeb06-b98c-4567-b4c5-1003932ea426 None] (3131) accepted ('10.5.0.31', 58207) 2014-08-22 17:18:02.052 3131 INFO neutron.wsgi [req-53df877f-59bd-48d9-a8c0-ec799ce86677 None] 10.5.0.31 - - [22/Aug/2014 17:18:02] "GET //v2.0/subnets.json HTTP/1.1" 200 1424 0.055183 2014-08-22 17:18:11.554 3131 INFO urllib3.connectionpool [-] Starting new HTTP connection (1): 10.5.0.31 2014-08-22 17:18:11.657 3131 INFO urllib3.connectionpool [-] Starting new HTTP connection (1): 10.5.0.31 2014-08-22 17:18:11.827 3131 INFO urllib3.connectionpool [-] Starting new HTTP connection (1): 10.5.0.31 2014-08-22 17:18:12.048 3131 INFO neutron.notifiers.nova [-] Nova event response: {u'status': u'completed', u'tag': u'739aff99-7472-4e5c-921b-095005830f61', u'name': u'network-vif-plugged', u'server_uuid': u'aaf0838b-d668-457a-b564-b9aa626ea78a', u'code': 200} 2014-08-22 17:18:15.656 3131 INFO neutron.wsgi [-] (3131) accepted ('10.5.0.31', 58217) . . 2014-08-22 17:18:29.494 3131 INFO neutron.wsgi [req-a8c3197a-9ac8-4721-b2c2-7e120c1b2b68 None] 10.5.0.33 - - [22/Aug/2014 17:18:29] "GET /v2.0/ports.json?network_id=16e331e2-3502-4d72-8a91-8931bb90263c&device_owner=network%3Adhcp HTTP/1.1" 200 941 0.020400 2014-08-22 17:19:30.697 3131 INFO neutron.wsgi [-] (3131) accepted ('10.5.0.33', 33439) 2014-08-22 17:19:30.945 3131 INFO neutron.wsgi [req-8bc82373-aa5b-425f-b258-6a75022ece9f None] (3131) accepted ('10.5.0.33', 33442) 2014-08-22 17:19:30.963 3131 INFO neutron.wsgi [req-fc706978-e642-4057-8fda-9ee53bfddf91 None] 10.5.0.33 - - [22/Aug/2014 17:19:30] "GET /v2.0/subnets.json?id=7667013a-af5f-4171-9797-9dd788fe8461 HTTP/1.1" 200 628 0.017350 2014-08-22 17:19:30.965 3131 INFO neutron.wsgi [req-fc706978-e642-4057-8fda-9ee53bfddf91 None] (3131) accepted ('10.5.0.33', 33443) 2014-08-22 17:19:30.986 3131 INFO neutron.wsgi [req-7f86ccd7-3463-4057-be48-1c4deb475238 None] 10.5.0.33 - - [22/Aug/2014 17:19:30] "GET /v2.0/ports.json?network_id=16e331e2-3502-4d72-8a91-8931bb90263c&device_owner=network%3Adhcp HTTP/1.1" 200 941 0.020030 2014-08-22 17:20:32.204 3131 INFO neutron.wsgi [-] (3131) accepted ('10.5.0.33', 33444) --snip-- my plugin.ini on compute node --snip-- [ml2] type_drivers = vlan tenant_network_types = vlan mechanism_drivers =openvswitch [ml2_type_flat] [ml2_type_vlan] network_vlan_ranges = tvlan:100:110 [ml2_type_gre] [ml2_type_vxlan] [securitygroup] enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver [ovs] bridge_mappings = tvlan:br-vm network_vlan_ranges = tvlan:100:110 tenant_network_type = vlan enable_tunneling = False integration_bridge = br-int local_ip = 172.16.0.33 --snip-- If I define a fixed ip address I'm unable to query the router on controller node. --snip-- tcpdump -i br-vm | grep 172.16.100.254 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on br-vm, link-type EN10MB (Ethernet), capture size 65535 bytes 18:00:27.637994 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:28.638008 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:29.640179 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:30.638030 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:31.638033 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:32.640302 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:33.638048 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 18:00:34.638055 ARP, Request who-has 172.16.100.254 tell 172.16.100.5, length 28 --snip-- What baffles me I'm unable to see the vlan info # My neutron config for computing-node neutron agent-show 9fa4620b-27e0-4308-a4ef-0bd29bc813f4 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | agent_type | Open vSwitch agent | | alive | True | | binary | neutron-openvswitch-agent | | configurations | { | | | "tunnel_types": [], | | | "tunneling_ip": "172.16.0.33", | | | "bridge_mappings": { | | | "tvlan": "br-vm" | | | }, | | | "l2_population": false, | | | "devices": 1 | | | } | | created_at | 2014-08-21 08:59:59 | | description | | | heartbeat_timestamp | 2014-08-22 16:08:10 | | host | cc03.t10.de | | id | 9fa4620b-27e0-4308-a4ef-0bd29bc813f4 | | started_at | 2014-08-22 15:09:40 | | topic | N/A | +---------------------+--------------------------------------+ # Controller config neutron agent-show 8f947289-c8bc-40d6-8ebf-b5a29a5f83bc +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | agent_type | Open vSwitch agent | | alive | True | | binary | neutron-openvswitch-agent | | configurations | { | | | "tunnel_types": [], | | | "tunneling_ip": "", | | | "bridge_mappings": { | | | "physnet1": "br-ex", | | | "tvlan": "br-vm" | | | }, | | | "l2_population": false, | | | "devices": 4 | | | } | | created_at | 2014-08-20 15:49:14 | | description | | | heartbeat_timestamp | 2014-08-22 16:21:39 | | host | cc01.t10.de | | id | 8f947289-c8bc-40d6-8ebf-b5a29a5f83bc | | started_at | 2014-08-21 11:26:17 | | topic | N/A | +---------------------+--------------------------------------+ Any pointers to fix the issue ..