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Heyho guys,

I'm running in the exactly same issue -.-

have spend today 6 hours to find a solution but without success.

Have tried with recompilation of dkms module of OpenVswitch, some
settings on dnsmasq and so on ....
Each spawned instance will discover for an ip address but don't get an
answer.
Do anyone have a hint ?


Cheers and thx
Heiko
On 14.11.2013 16:44, Nick Maslov wrote:
> Hi guys,
>
> I`m running neutron on ubuntu 13.10.
>
> And I`m having issues with VM`s getting IP through DHCP, it never gets
one. I`m using OVS plugin.
>
> So, agents are up:
>
+--------------------------------------+--------------------+-----------+-------+----------------+
> | id | agent_type | host | alive | admin_state_up |
>
+--------------------------------------+--------------------+-----------+-------+----------------+
> | 78237168-a0ea-410c-a634-fcbc35bfc1d6 | Open vSwitch agent | nova06 |
:-) | True |
> | b8476a04-4cfd-434b-8b95-53a3f59cfdb9 | Open vSwitch agent | nova05 |
:-) | True |
> | 9f733be5-36cc-421c-90c8-83f00eb99e2a | Open vSwitch agent |
net01-001 | :-) | True |
> | 83a712aa-fdc7-42e0-a229-d850faa6741d | DHCP agent | net01-001 | :-)
| True |
> | 9b814c89-41d7-47bd-bfa2-f1825f755c9b | L3 agent | net01-001 | :-) |
True |
>
+--------------------------------------+--------------------+-----------+-------+----------------+
>
> Network namespaces are created as well:
>
> root at net01-001:/etc/neutron/plugins/openvswitch# ip netns
> qrouter-33eb1c85-432f-4470-9d69-81ab09fbee28
> qdhcp-73dfbc17-09ea-4201-8dd8-e82038c4fd5f
>
> I can ping from qdhcp namespace the IP of router in qrouter, so those
namespace can see each other.
>
> When I spin up a VM, i see that DHCPREQUEST packets are leaving
compute node, hit the eth physical interface of network node - but never
get down to br-tun device. I figured all that with tcpdump.
>
> • Also, on network node I don’t see bridges:
> root at net01-001:/etc/neutron/plugins/openvswitch# brctl show
> bridge name bridge id STP enabled interfaces
>
> Should they be there?
>
> • Also, for GRE tunnels the speed rates are weird:
>
> # ovs-ofctl show br-tun
> OFPT_FEATURES_REPLY (xid=0x2): dpid:0000ce0987a95746
> n_tables:254, n_buffers:256
> capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
> actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC
SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE
> 1(patch-int): addr:3e:ac:8c:7d:19:5f
> config: 0
> state: 0
> speed: 0 Mbps now, 0 Mbps max
> 2(gre-1): addr:ce:6e:63:61:d2:9a
> config: 0
> state: 0
> speed: 0 Mbps now, 0 Mbps max
> 3(gre-2): addr:76:14:f3:e0:48:3c
> config: 0
> state: 0
> speed: 0 Mbps now, 0 Mbps max
> 4(gre-3): addr:d6:e3:27:a9:1b:46
> config: 0
> state: 0
> speed: 0 Mbps now, 0 Mbps max
>
> • OpenVSwitch ports are the following:
>
> root at net01-001:/etc/neutron/plugins/openvswitch# ovs-vsctl show
> 3db4ec17-7d21-4d4a-b5da-772a14ee819d
> Bridge br-ex
> Port br-ex
> Interface br-ex
> type: internal
> Port "eth0"
> Interface "eth0"
> Bridge br-int
> Port br-int
> Interface br-int
> type: internal
> Port patch-tun
> Interface patch-tun
> type: patch
> options: {peer=patch-int}
> Bridge br-tun
> Port "gre-2"
> Interface "gre-2"
> type: gre
> options: {in_key=flow, local_ip="91.238.146.15", out_key=flow,
remote_ip="91.238.146.9"}
> Port br-tun
> Interface br-tun
> type: internal
> Port patch-int
> Interface patch-int
> type: patch
> options: {peer=patch-tun}
> Port "gre-1"
> Interface "gre-1"
> type: gre
> options: {in_key=flow, local_ip="91.238.146.15", out_key=flow,
remote_ip="91.238.146.5"}
> Port "gre-3"
> Interface "gre-3"
> type: gre
> options: {in_key=flow, local_ip="91.238.146.15", out_key=flow,
remote_ip="91.238.146.8"}
> ovs_version: “1.10.2"
>
> Is anyone might point me to a solution to this issue?
>
> Thanks,
> NM
>
>
>
>
>
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