[Openstack] openvswitch configuraion

Yngvi Páll Þorfinnsson yngvith at siminn.is
Mon Mar 23 16:44:31 UTC 2015


Hi,
I'm trying to configure neutron on the networking node.

My problem is:
The 3rd interface is somehow not working after I configure openvswitch.

I'm using the manual
"OpenStack Installation Guide for Ubuntu 14.04"  - Juno
Everything has gone well until I reached the configuration of the Open vSwitch (OVS) mechanism.
i.e.
To configure the Modular Layer 2 (ML2) plug-in
The ML2 plug-in uses the Open vSwitch (OVS) mechanism (agent) to build the virtual networking
framework for instances. However, the controller node does not need the OVS
components because it does not handle instance network traffic.

And as I've edited the configuration file
/etc/neutron/plugins/ml2/ml2_conf.ini
Accordingly to the instructions.

IP address for the 3rd interface is 172.22.17.12

ip addr show

4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UP group default qlen 1000
    link/ether d4:85:64:cc:a2:2e brd ff:ff:ff:ff:ff:ff
    inet 172.22.17.12/24 brd 172.22.17.255 scope global em3
       valid_lft forever preferred_lft forever
    inet6 fe80::d685:64ff:fecc:a22e/64 scope link
       valid_lft forever preferred_lft forever


But now when I'm trying to ping default gateway or openstack.org it does not work anymore.

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         172.22.17.1     0.0.0.0         UG    0      0        0 em3
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 em2
172.22.14.0     0.0.0.0         255.255.255.0   U     0      0        0 em1
172.22.15.0     0.0.0.0         255.255.255.0   U     0      0        0 em2
172.22.17.0     0.0.0.0         255.255.255.0   U     0      0        0 em3

root at opst-netwrk1-dev:~# ping 172.22.17.1
PING 172.22.17.1 (172.22.17.1) 56(84) bytes of data.
>From 172.22.17.12 icmp_seq=1 Destination Host Unreachable

root at opst-netwrk1-dev:~# ping 162.242.140.107
PING 162.242.140.107 (162.242.140.107) 56(84) bytes of data.
>From 172.22.17.12 icmp_seq=1 Destination Host Unreachable

It worked perfectly before this step.  And it works very well still on the controller and computer nodes.

The network card is 10 years old, as the server:
HP Proliant DL380 G7

Does anyone know if this openvswitch configuration is supported for such an old network card?
Could this be the problem?

Best regards
Yngvi

Kveðja,

Yngvi Páll Þorfinnsson
Engineer

Sími +354 550 7457
GSM +354 896 7457
Fax +354 511 7070

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