[Openstack] veth pair disappear after hardware reboot

Chow, Anthony T (Anthony)** CTR ** anthony.chow at alcatel-lucent.com
Fri Sep 4 20:06:22 UTC 2015


Not exactly documenting that “veth” is not saved on system reboot but this blog post may be useful for you:



From: varun bhatnagar [mailto:varun292006 at gmail.com]
Sent: Monday, August 31, 2015 12:06 AM
To: Mike Spreitzer
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] veth pair disappear after hardware reboot

Hello Mike,

Thanks a lot for replying.
No, I am not aware about veths not surviving a reboot. Is it mentioned in any document of OpenStack?

I have checked the Neutron services and they are absolutely fine after reboot. This problem is seen even when I kill/stop the network services and again try to start them.

Could you please tell me if there is any fix for this?

On Aug 31, 2015 4:46 AM, "Mike Spreitzer" <mspreitz at us.ibm.com<mailto:mspreitz at us.ibm.com>> wrote:
You know that veths do not survive reboot, right?  It is up to Neutron or whatever needs them to create them after each boot.  Have you checked that all the right Neutron services came up and are healthy after your reboot?
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