Open Stack

After I change the user to be administrator, I can get my neutron agents to list as the following: But, I still can not ping other VM from a VM. What can be wrong? Thanks for the help.

root at mussdhux20:/home/stack/Openstack# neutron agent-list
+--------------------------------------+--------------------+------------+-------+----------------+
| id                                   | agent_type         | host       | alive | admin_state_up |
+--------------------------------------+--------------------+------------+-------+----------------+
| 68eba267-b885-4aad-96a4-e8d19ac9db4a | L3 agent           | mussdhux20 | :-)   | True           |
| c0726b66-a1f4-4b00-9120-7bf0ee91a3d0 | DHCP agent         | mussdhux20 | :-)   | True           |
| d8808f97-90f8-424d-a786-45b4541af755 | Open vSwitch agent | mussdhux04 | :-)   | True           |
| e8d85451-3f6f-4b2a-94a1-6dd3e9a93cff | Metadata agent     | mussdhux20 | :-)   | True           |
| f4e51873-7e18-49a4-ab6b-94c24500e25f | Open vSwitch agent | mussdhux13 | :-)   | True           |
| f8cab47d-a0db-4de2-b457-23c4e87ccb32 | Open vSwitch agent | mussdhux10 | :-)   | True           |
| fd9ab1c9-ce62-4504-8d68-215584a70a17 | Open vSwitch agent | mussdhux20 | :-)   | True           |
+--------------------------------------+--------------------+------------+-------+----------------+


From: Mitchell Chen
Sent: Friday, February 27, 2015 10:18 AM
To: 'Mark Loza'; openstack at lists.openstack.org
Subject: RE: [Openstack] Instance can not ping each other

Hi Mark and All,

Thank you for the indication to test the neutron agents. I typed "neutron agent-list" in my control and neutron nodes, but nothing returns: What does that mean?

root at mussdhux23:/home/stack/Openstack# neutron agent-list

root at mussdhux20:/home/stack/Openstack# neutron agent-list


I had restarted the neutron services after my neutron node booted up by typing the following commands, but "neutron agent-list" still return nothing.

service neutron-plugin-openvswitch-agent restart

service neutron-l3-agent restart

service neutron-dhcp-agent restart

service neutron-metadata-agent restart



Please help how to start up the neutron agents.



Thank you for the help,

Mitchell

From: Mark Loza [mailto:mloza at morphlabs.com]
Sent: Friday, February 27, 2015 3:59 AM
To: Mitchell Chen; openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
Subject: Re: [Openstack] Instance can not ping each other

I assume you are using neutron instead of nova-network

On 2/27/15 7:57 PM, Mark Loza wrote:
Hi,

Did you check if the neutron agents are all alive?

# neutron agent-list


On 2/27/15 3:49 PM, Mitchell Chen wrote:
Hi All,

I followed the OpenStack icehouse installation guide to successfully install a five node system, one control node, one neutron and three compute nodes.  Inside of the instance, I can ping other instances' virtual IP address and outside internet fine. Recently, we decided to move all the nodes to a lab. So, I powered down the five nodes before the move and powered up them afterward. All the physical network connections were exactly the same as they were before the move. But, I can not even ping other instance after the five nodes up again.

I typed "route -n" inside of the instance, no any IP is shown. What's wrong? Please help how I can get the instance networking back.

Thanks,
Mitchell

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