On Jun 28, 2016, at 11:19 PM, Kevin Benton wrote: > It sounds like the agents may be plugging their ports into the wrong OVS > bridge. It sounds like you have br-physical configured as your integration > bridge, but you also have eth0 directly plugged into that bridge as well. > That's not going to work quite correctly because the OVS agent expects to > have to wire between the integration bridge and the bridge with the physical > ports.
That gave me the indication that maybe I've mixed the two bridges up. Which I vaguely thought about that a few days ago, but this way was the only way that gave ANY result, so I was afraid to meddle with it :). Also, I've read _A LOT_ of howtos and examples, and I think not :). On the Controller: bladeA01b:~# rgrep integration /etc/neutron/ | egrep -v '\.orig|~:|# ' /etc/neutron/plugins/ml2/openvswitch_agent.ini:integration_bridge = br-provider /etc/neutron/dhcp_agent.ini:ovs_integration_bridge = br-provider /etc/neutron/lbaas_agent.ini:ovs_integration_bridge = br-provider /etc/neutron/l3_agent.ini:ovs_integration_bridge = br-provider On the Compute: bladeA03b:~# rgrep integration /etc/neutron/ | egrep -v '\.orig|~:|# ' /etc/neutron/plugins/ml2/openvswitch_agent.ini:integration_bridge = br-provider /etc/neutron/l3_agent.ini:ovs_integration_bridge = br-provider /etc/neutron/lbaas_agent.ini:ovs_integration_bridge = br-provider Is there a difference between "integration_bridge" and "ovs_integration_bridge"? They should match, shouldn't they?? If I understand it correctly, the term "integration bridge" is the one that "performs VLAN tagging and un-tagging for traffic coming from and to your instances". So if this is the case, then I think I've configured it correctly (?). bladeA01b:~# rgrep br-physical /etc/neutron/ | egrep -v '\.orig|~:|:# ' /etc/neutron/plugins/ml2/openvswitch_agent.ini:bridge_mappings = external:br-physical /etc/neutron/l3_agent.ini:external_network_bridge = br-physical bladeA03b:~# rgrep br-physical /etc/neutron/ | egrep -v '\.orig|~:|:# ' /etc/neutron/l3_agent.ini:external_network_bridge = br-physical > So I would leave the integration bridge to the default of 'br-int', then > define a bridge_mapping in the OVS agent config that maps a 'physnet' to > br-physical. Then when you create the network, it should be of the 'flat' > type with a physical network that matches the physnet in the bridge_mapping. > That's the part that tells the agent to wire ports on that network to that > particular OVS bridge without VLAN tags. If I understood the config file correctly, your reference to "physnet" should be "physical" in my case (because that's what I call my physical network in/with "neutron net-create"): bladeA01b:~# openstack network show physical +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | nova | | availability_zones | nova | | created_at | 2016-06-26T12:50:02 | | description | | | id | eadb3df0-3c4b-46e5-afb7-fe5d2ef09328 | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | mtu | 1500 | | name | physical | | port_security_enabled | True | | project_id | 2985b96e27f048cd92a18db0dd03aa23 | | provider:network_type | flat | | provider:physical_network | external | | provider:segmentation_id | None | | router_external | External | | shared | True | | status | ACTIVE | | subnets | 172bdf64-9291-415a-8930-455f1f59453f | | tags | [] | | updated_at | 2016-06-26T12:50:02 | +---------------------------+--------------------------------------+ and I'm mapping that to "br-physical" (which have eth0 specified as the port). > This pic helps illustrate the two different OVS bridges that the agent will > patch together and setup the rules for: > http://docs.openstack.org/mitaka/networking-guide/_images/scenario-classic-ovs-compute2.png I'm going to have to study that in much more detail, and a lot longer to understand it. Where did it come from (what page) so I can get a little more substance? -- Geologists recently discovered that "earthquakes" are nothing more than Bruce Schneier and Chuck Norris communicating via a roundhouse kick-based cryptosystem.
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