[Openstack] Instance can not ping each other

Mark Loza mloza at morphlabs.com
Fri Feb 27 11:59:12 UTC 2015

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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