[ovs-discuss] how to use ovs-conntrack

[Justin Pettit]

> On Jun 23, 2015, at 12:37 PM, Zhang, Chunyu <zhangcy at cn.fujitsu.com> wrote:
> 
> hi  all
> 
> i want to use ovs-conntrack.
> i know ovs is in : https://github.com/justinpettit/ovs/tree/conntrack
> i know kernel module should change : https://lkml.org/lkml/2015/3/2/835
> 
> my question is :
> 
> 1.  ovs-conntrack use
> should i use those patch ? https://lkml.org/lkml/2015/3/2/835

I would use the OVS repo.  Those were RFC patches and represent the code on that day.  The OVS repo is more current (there have been a number of bug fixes) and also contains the userspace parts that you need.

> 2. if i must use those kernel patch
> github( kernel+ovs kernel patch ) address is ?

As I mentioned, I'd recommend using the OVS repo, which has all the parts you need.  It should be rebased against OVS master in the next couple of days.  I imagine an updated kernel portion will be sent out to netdev in the next few weeks.

> 3. ovs-ofctl command
> in our project , we use nf_conntrack extension : 
> 
> static struct nf_ct_ext_type nf_ct_colo_extend __read_mostly = {
>      .len        = sizeof(struct nf_conn_colo),
>      .move       = nf_ct_colo_extend_move,
>      .destroy    = nf_ct_colo_extend_destroy,
>      .align      = __alignof__(struct nf_conn_colo),
>      .id		= NF_CT_EXT_COLO,
> };
> 
> if i want to nf_conntrack extension work.
> ovs-ofctl command is ?
> please give me some example and advise

If you use the OVS repo, the man pages for ovs-ofctl were updated.  Look for the new "ct" action and "conn_state" match.

--Justin