Router External Port is Down

asked 2018-07-26 04:45:11 -0500

Mahmut Bro gravatar image

Hello Dear,

I am working on openstack in latests days. I encounter some repeatitive problems and I belive that this openstack will be useless for me.

When I create external and internal network from GUI and assing it to router, router has down interface for external port. I could not make it up anyway.

To be continue work for openstack, I need help. Could you please help me?

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Apart from the port being DOWN, what is the problem?

Do you find any ERROR logs in the Neutron log files?

How did you deploy the cloud, and how did you create the router?

Bernd Bausch gravatar imageBernd Bausch ( 2018-07-26 06:18:18 -0500 )edit

Hi, I am creating instance succesfully and assign internal subnet. Also, I have provider network. I am putting router to connect those internal and provider subnets. I am not able to ping router external interface.Also, instance cannot connect internet but it can ping it is internal gw.

Mahmut Bro gravatar imageMahmut Bro ( 2018-07-26 06:41:57 -0500 )edit

++also, could you please send command to check logs?

Mahmut Bro gravatar imageMahmut Bro ( 2018-07-26 06:42:37 -0500 )edit

Where your logs are depends on your installation. A typical place is /var/log/neutron. But very often, when you have connectivity problems, no error messages are generated. Neutron doesn't manage the traffic flow; it only manages the various switches and network interfaces.

Bernd Bausch gravatar imageBernd Bausch ( 2018-07-29 19:59:40 -0500 )edit

Most likely something is wrong in the ML2 mechanism driver configuration, or with your external network setup. Unfortunately, it's easy to get these things wrong. Often it helps to trace packets (tcpdump) and find out at which bridge or interface they disappear.

Bernd Bausch gravatar imageBernd Bausch ( 2018-07-29 20:07:43 -0500 )edit