On Wednesday 11 March 2015 12:36 PM, Sudipto Biswas wrote:
On Wednesday 11 March 2015 12:12 PM, Fan Du wrote:
于 2015年03月11日 14:42, Sudipto Biswas 写道:
On Wednesday 11 March 2015 11:35 AM, Fan Du wrote:
于 2015年03月11日 01:38, Sudipto Biswas 写道:
Hi,
I have a very small query. I am using OVS 2.3.1 and i have built
the kernel module etc following the instructions in the INSTALL file.
I was also, able to create vxlan ports and communicate across two
VMs on two different machines using VxLAN tunnels.
However, if i do a lsmod on my machine, it doesn't list the vxlan
kernel module.
CONFIG_VXLAN is set as 'y' or 'm' ?
Where would you want me to set this option? As in some file?
oh...
If you are using your host default config, then kernel config file is
at /boot/config-2.6.32-358.el6.x86_64,
the suffix may varies depending on your kernel version.
cat /boot/config-2.6.32-358.el6.x86_64 | grep CONFIG_VXLAN
Thanks, I found that the vxlan module was built. Then did a modprobe
of the vxlan module and now lsmod lists vxlan.
However, like the gre module is being used/referenced by openvswitch
- vxlan doesn't have a reference count:
lsmod | grep vxlan
vxlan 29379 0
ip_tunnel 20094 1 vxlan
lsmod | grep gre
gre 5383 1 openvswitch
Shouldn't we have the vxlan being referenced by OVS as well? (since
i have some vxlan ports created)
I have a very basic knowledge of the kernel , so please bear with me
:-)
To answer your first question though:
CONFIG_VXLAN=m - this is the setting in the kernel config.
I am guessing that the kernel module should be loaded by openvswitch
when we build it for the kernel?
lsmod | grep openvswitch
openvswitch 123112 0
gre 5383 1 openvswitch
libcrc32c 1922 1 openvswitch
Now i am beginning to think, if i should see the vxlan module
there as well?
If yes, then i wonder how my setup is working? :-)
Appreciate your help!
Thanks.
Sudipto
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