[ovs-discuss] Can't enable gre/vxlan for ovs

Li, Chen chen.li at intel.com
Thu Jan 2 01:19:16 UTC 2014


Sorry, I'm really new to openvswitch.
Not very clear what to do.

I don't have the error message.
And I'm working on CentOS 6.4, kernel 2.6.32-358.123.2.openstack.el6.x86_64.
I installed openvswitch using command "yum install openvswitch".
The version I'm using is openvswitch.x86_64      1.11.0_8ce28d-1.el6ost.
My repos is  http://repos.fedorapeople.org/repos/openstack/openstack-havana/epel-6/

Thanks.
-chen

From: Alex Wang [mailto:alexw at nicira.com]
Sent: Tuesday, December 31, 2013 2:38 AM
To: Li, Chen
Cc: discuss at openvswitch.org
Subject: Re: [ovs-discuss] Can't enable gre/vxlan for ovs

Hey Chen,

Just learned that there is change of way of kernel module installation between branch-1.11 and branch-2.0.

Could you confirm if you have the following error message in 'dmesg' output?
[  172.574886] openvswitch: Open vSwitch switching datapath 1.11.1, built Dec 30 2013 09:43:15
[  172.575046] openvswitch: cannot register gre protocol handler

This will prevent the gre module from functioning.  Also, please refer to the INSTALL file for the correct way to install kernel module.

Thanks,
Alex Wang,

On Mon, Dec 30, 2013 at 9:51 AM, Alex Wang <alexw at nicira.com<mailto:alexw at nicira.com>> wrote:
Hey Chen,

Thanks for reporting this.  Seems to be a bug.

I can reproduce it on my machine.  And ovs-dpctl show
did not show the tunnel port,

root at promg-2n-a-dhcp85:~# ovs-dpctl show
system at ovs-system:
        lookups: hit:53 missed:4 lost:0
        flows: 1
        port 0: ovs-system (internal)
        port 1: br0 (internal)


We'll investigate & fix it.

Thanks,
Alex Wang,

On Sun, Dec 29, 2013 at 11:54 PM, Li, Chen <chen.li at intel.com<mailto:chen.li at intel.com>> wrote:
Hi list,

I'm trying to enable gre/vxlan for Openstack, but unfortunately, I get failed. :(

So, I try to easy my job to just enable gre/vxlan on openvswitch by hand.
I followed steps: http://networkstatic.net/configuring-vxlan-and-gre-tunnels-on-openvswitch/#!prettyPhoto
But, the network is still not reachable......

While I'm trying to ping another Node, the action in ovs is drop:
on Node 1:

1.       Run command : ping 10.1.2.11

2.       Run command : ovs-dpctl dump-flows
in_port(1),eth(src=fe:34:0f:f9:16:48,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=10.1.2.10,tip=10.1.2.11,op=1,sha=fe:34:0f:f9:16:48,tha=00:00:00:00:00:00), packets:5, bytes:210, used:0.647s, actions:drop

Hope you guys can give me some advice about this.

Thanks.
-chen

Here is my set-up's status:
Node 1:
ifconfig
br-int    Link encap:Ethernet  HWaddr FE:34:0F:F9:16:48
          inet addr:10.1.2.10  Bcast:10.1.2.255  Mask:255.255.255.0
          inet6 addr: fe80::1038:7dff:fec0:c4f1/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:393799 errors:0 dropped:0 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:75528724 (72.0 MiB)  TX bytes:1476 (1.4 KiB)

eth0      Link encap:Ethernet  HWaddr 00:25:90:79:EE:58
          inet addr:192.168.11.102  Bcast:192.168.255.255  Mask:255.255.0.0
          inet6 addr: fe80::225:90ff:fe79:ee58/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:47704498 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7581995 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:8436995106<tel:8436995106> (7.8 GiB)  TX bytes:2025995928<tel:2025995928> (1.8 GiB)
          Memory:dfd20000-dfd40000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:57 errors:0 dropped:0 overruns:0 frame:0
          TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5022 (4.9 KiB)  TX bytes:5022 (4.9 KiB)

ovs-vsctl show
4ab902f3-5d19-46b9-bd24-0ad080540613
    Bridge br-int
        Port "gre1"
            Interface "gre1"
                type: gre
                options: {remotr_ip="192.168.11.103"}
        Port br-int
            Interface br-int
                type: internal
ovs_version: "1.11.0"

ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=33.562s, table=0, n_packets=0, n_bytes=0, idle_age=33, priority=0 actions=NORMAL

Node 2:
ifconfig
br-int    Link encap:Ethernet  HWaddr F6:B2:FB:FA:4F:40
          inet addr:10.1.2.11  Bcast:10.1.2.255  Mask:255.255.255.0
          inet6 addr: fe80::874:14ff:fe1c:6f2d/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:60 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:2736 (2.6 KiB)

eth0      Link encap:Ethernet  HWaddr 00:25:90:79:D3:F4
          inet addr:192.168.11.103  Bcast:192.168.255.255  Mask:255.255.0.0
          inet6 addr: fe80::225:90ff:fe79:d3f4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:50628891 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10316125 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9826925316 (9.1 GiB)  TX bytes:2822135225 (2.6 GiB)
          Memory:dfd20000-dfd40000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1391 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1391 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:154486 (150.8 KiB)  TX bytes:154486 (150.8 KiB)

ovs-vsctl show
218f9b54-b3e8-47ac-8563-58ff91ca57e9
    Bridge br-int
        Port "gre1"
            Interface "gre1"
                type: gre
                options: {remotr_ip="192.168.11.102"}
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "1.11.0"

ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=7014.936s, table=0, n_packets=60, n_bytes=2736, idle_age=6412, priority=0 actions=NORMAL


_______________________________________________
discuss mailing list
discuss at openvswitch.org<mailto:discuss at openvswitch.org>
http://openvswitch.org/mailman/listinfo/discuss


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20140102/42fac757/attachment.html>


More information about the discuss mailing list