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@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@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@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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