[ovs-discuss] OVS 2.10 geneve errors

[Manoj Sharma]

It may be because of duplicate chassis IPs (same IP address used for more than one chassis).

Thanks.

From: <ovs-discuss-bounces at openvswitch.org> on behalf of Guru Shetty <guru at ovn.org>
Date: Monday, August 20, 2018 at 9:24 PM
To: discuss <discuss at openvswitch.org>, Greg Rose <gvrose8192 at gmail.com>, William Tu <u9012063 at gmail.com>
Subject: Re: [ovs-discuss] OVS 2.10 geneve errors

I should clarify that I am seeing this in kernel datapath. I realized that my usage of "userspace geneve tunnels" can be misleading.

On Mon, 20 Aug 2018 at 21:22, Guru Shetty <guru at ovn.org<mailto:guru at ovn.org>> wrote:
Hello All,
  Looks like with OVS 2.10, we cannot create more than 2 userspace geneve tunnels.
You get an error that says: could not add network device geneve23 to ofproto (Device or resource busy)

e.g:

vagrant at k8smaster:~$ sudo ovs-vsctl show
86d11177-d982-48f9-a08e-c9f6f6587215
    Bridge "br0"
        Port "geneve23"
            Interface "geneve23"
                type: geneve
                options: {remote_ip="192.168.0.3"}
                error: "could not add network device geneve23 to ofproto (Device or resource busy)"
        Port "br0"
            Interface "br0"
                type: internal
   Bridge br-int
        fail_mode: secure
        Port "k8s-patch-br-int-br-localnet"
            Interface "k8s-patch-br-int-br-localnet"
                type: patch
                options: {peer="k8s-patch-br-localnet-br-int"}
        Port "ovn-d18708-0"
            Interface "ovn-d18708-0"
                type: geneve
                options: {csum="true", key=flow, remote_ip="10.10.0.12"}
        Port "26dfc422a6875c2"
            Interface "26dfc422a6875c2"
        Port br-int
            Interface br-int
                type: internal
        Port "ovn-8abe64-0"
            Interface "ovn-8abe64-0"
                type: geneve
                options: {csum="true", key=flow, remote_ip="10.10.0.13"}
                error: "could not add network device ovn-8abe64-0 to ofproto (Device or resource busy)"


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