[Openstack] OpenStack Grizzly Quantum Networking

Clint Dilks clintd at waikato.ac.nz
Mon Sep 23 23:00:01 UTC 2013


I am currently trying to get Grizzly up and running on CentOS 6.4.
I have followed
http://docs.openstack.org/grizzly/basic-install/yum/content/as closely
as I can and from both a dashboard and OpenStack command line
viewpoint all OpenStack services are up and running and it appears that
VM's can be lauched and stopped without any obvious errors being recorded
but I can't interact with them using things like ping or ssh.

Below is information I think may be useful to fix the issue.  Thanks for
any insight you care to share.

Currently I have a single machine running all services

Management Network em2
Bridge linked to em1

We want people to be able to create VM's that they can access via addresses.

So as an initial test I follow the example listed in the guide above and
created a demo-net'

Key details below


Then I ran

quantum net-create public --router:external=True

quantum subnet-create --ip_version 4 --gateway public \
--allocation-pool start=,end=
--disable-dhcp --name public-subnet

quantum router-gateway-set demo-router public

Using this config instances will launch and if I assign a machine to the
public network, the network topology appears to be what we want.  But in
the guides section about lauching your first vm  (
 it states that ip netns should show two pieces of information qrouter
and qdhcp.  I am only seeing qrouter.

Should what I have set up work ?  Or have I missed something fundamental ?

As it was the default quantum should be configured to use gre + tunnels,  I
am using  2.6.32-358.118.1.openstack.el6.x86_64 to add the functionality
that is missing from the default CentOS kernel.

/etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini contains the
following, would it be simpler to get what we need using a VLAN
configuration ?

sql_connection = mysql://quantum:openstack-csl@
reconnect_interval = 2

tenant_network_type = gre
enable_tunneling = True
tunnel_id_ranges = 1:1000
local_ip =

polling_interval = 2

firewall_driver =
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