[ovs-discuss] flow table question

Ben Pfaff blp at nicira.com
Mon Sep 23 16:33:51 UTC 2013


The OVS support for MPLS isn't complete.  Perhaps you are running into
a rough edge.

On Sat, Sep 21, 2013 at 11:05:24PM -0400, Feixiong Zhang wrote:
> HI,
> 
> actually I have tried this and there is no luck. the flow insertion
> succeeds while the matching fails. Thanks anyway.
> 
> 
> On Sat, Sep 21, 2013 at 9:46 PM, NS Srinivasa Murthy-B37840 <
> B37840 at freescale.com> wrote:
> 
> >  ** **
> >
> > Hi,****
> >
> > ** **
> >
> > When IP Addresses are to be specified as match fields, it is a pre
> > requisite to include the match field OFPXMT_OFB_ETH_TYPE with a value of
> > 0x800 (IP Protocol.)****
> >
> > ** **
> >
> > Thanks****
> >
> > -ns murthy****
> >
> > ** **
> >
> > *From:* discuss-bounces at openvswitch.org [mailto:
> > discuss-bounces at openvswitch.org] *On Behalf Of *Feixiong Zhang
> > *Sent:* Sunday, September 22, 2013 6:46 AM
> > *To:* discuss at openvswitch.org
> > *Subject:* [ovs-discuss] flow table question****
> >
> > ** **
> >
> > Hi, all
> >
> > I am trying to insert two flows in table0 and table 1 separately. The
> > first flow entry tries to pop the MPLS header and the second entry will
> > match the rest of the packet, like dl_src,dl_dst, nw_src ... fields. The
> > following are my flows:
> >
> > table0:
> >  priority=0,mpls,in_port=2,****
> >
> > mpls_label=3
> > ,actions=pop_mpls:0x0800,load:0xe->OXM_OF_METADATA[],resubmit(,1)
> >
> > table1:
> > priority=32786,tcp,metadata=0xe,in_port=2,dl_src=90:e2:ba:3d:c0:f8,dl_dst=90:e2:ba:28:e6:98,nw_src=10.0.3.4,nw_dst=10.0.1.4
> > actions=output:3
> >
> > But the matching will fail if nw_src and nw_dst field are set in the
> > table1 flow rule, while there is no problem if only ethernet header is set.
> > Does anyone have any idea about what's going on here. I would appreciate
> > your help a lot. Thanks.****
> >

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