Re: [ovs-discuss] OVS/OVN troubleshooting: where's my packet?

2019-04-16 Thread Ben Pfaff
We have a lot of tracing tools, at multiple levels. I wonder whether they are documented adequately. I tried to document them by example in the OVN OpenStack tutorial (e.g. http://docs.openvswitch.org/en/latest/tutorials/ovn-openstack/), but it is not exactly a how-to guide. Maybe someone could

Re: [ovs-discuss] OVS/OVN troubleshooting: where's my packet?

2019-03-15 Thread Daniel Alvarez Sanchez
Sounds like a great plan, Ben! Thanks for that. It'd be great if people could chime in this thread to help identify those gaps. As about the anecdotes, we had just been involved in a case where OVN was used and packets were dropped at conntrack: Two VMs on different Logical Switches (externally r

Re: [ovs-discuss] OVS/OVN troubleshooting: where's my packet?

2019-03-14 Thread Ben Pfaff
On Thu, Mar 14, 2019 at 04:55:56PM +0100, Daniel Alvarez Sanchez wrote: > Hi folks, > > Lately I'm getting the question in the subject line more and more > frequently and facing it myself, especially in the context of > OpenStack. > > The shift to OVN in OpenStack involves a totally different app

[ovs-discuss] OVS/OVN troubleshooting: where's my packet?

2019-03-14 Thread Daniel Alvarez Sanchez
Hi folks, Lately I'm getting the question in the subject line more and more frequently and facing it myself, especially in the context of OpenStack. The shift to OVN in OpenStack involves a totally different approach when it comes to tracing packet drops. Before OVN, there were a bunch of network