<div dir="ltr"><div class="gmail_default" style="font-family:monospace,monospace">Ben,</div><div class="gmail_default" style="font-family:monospace,monospace"> Thank you for your response. I did some more digging and simplified what I am doing. I can get it working fine with ovs 2.6.0 but with 2.11.0 I still get the error</div><div class="gmail_default" style="font-family:monospace,monospace"> "<span style="font-family:Arial,Helvetica,sans-serif">2019-03-21T12:00:50.563Z|</span><span style="font-family:Arial,Helvetica,sans-serif">00076|odp_util(handler49)|ERR|</span><span style="font-family:Arial,Helvetica,sans-serif">invalid Ethertype 0 in flow key</span>" </div><div class="gmail_default" style="font-family:monospace,monospace">now I am getting it when I try to send a packet to the controller with the following rule </div><div class="gmail_default" style="font-family:monospace,monospace"><span style="font-family:Arial,Helvetica,sans-serif">"cookie=0xb90000b3443b96, duration=891.881s, table=0, n_packets=2073, n_bytes=245802, priority=1333,in_port=input actions=CONTROLLER:65535"</span><br></div><div class="gmail_default" style="">If I write a rule to just pass all of the traffic to another port it works fine. I thought maybe it has something to do with a miss match between the kernel module and the ovs version I am using. I am using debian, "SMP Debian 4.9.144-3.1", and I can not get the kernel module to compile I get "error: too few arguments to function 'inet_fraq_find' ....</div><div class="gmail_default" style="">Any ideas on what to try next?</div><div class="gmail_default" style=""><br></div><div class="gmail_default" style="">Thank you,</div><div class="gmail_default" style="">Tom</div><div class="gmail_default" style="font-family:monospace,monospace"><br></div><div class="gmail_default" style="font-family:monospace,monospace"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 15, 2019 at 7:28 PM Ben Pfaff <<a href="mailto:blp@ovn.org" target="_blank">blp@ovn.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">You should not need to match on both labels to pop a single label.<br>
<br>
If you use ofproto/trace for this packet (see ovs-vswitchd(8)), what<br>
does it say?<br>
<br>
On Tue, Mar 12, 2019 at 08:34:38AM -0400, Thomas Crowley wrote:<br>
> I am attempting to pop the outer MPLS label on a packet that has two MPLS<br>
> labels and send the result to a patch port that then sends the packet back<br>
> to the same bridge. I am using a combination of ONOS and scapy(see bottom<br>
> of email for script) to do my test. I do not get the packet back to my<br>
> bridge via the patch port. I do get the following error:<br>
> <br>
> 2019-03-12T12:00:51.460Z|00019|odp_util(handler7)|ERR|invalid Ethertype 0<br>
> in flow key<br>
> <br>
> when I dump the flow OVS tells me that it is:<br>
> <br>
> cookie=0xba00008259b570, duration=30.601s, table=0, n_packets=27,<br>
> n_bytes=1350, priority=60001,mpls,in_port=input,mpls_label=164,mpls_bos=0<br>
> actions=pop_mpls:0x8847,output:"4PatchIn"<br>
> <br>
> If I run the same test but with a packet with only a single MPLS label it<br>
> works fine. Do I have to match both labels in order to pop a single label?<br>
> <br>
> Thank you,<br>
> Tom<br>
> <br>
> Scapy script:<br>
> #!/usr/bin/env python<br>
> <br>
> import sys<br>
> from scapy.all import *<br>
> <br>
> load_contrib("mpls")<br>
> mpls_eth = Ether(src="ca:09:11:11:11:1b", dst="ca:01:07:fc:00:1c",<br>
> type=0x8847)<br>
> mpls_lables=MPLS(label=164, s=0, ttl=255)/MPLS(label=182, s=1, ttl=255)<br>
> mpls_ip = IP(src='10.0.255.2', dst='10.0.255.4')<br>
> mpls_icmp = ICMP(type="echo-request")<br>
> mpls_raw = Raw(load="Foooooooooooooooook!")<br>
> mpls_frame=mpls_eth/mpls_lables/mpls_ip/ICMP()<br>
> #mpls_icmp/mpls_raw<br>
> <br>
> #>>> Ether(str(mpls_frame))<br>
> #<Ether dst=ca:01:07:fc:00:1c src=11:11:11:11:11:11 type=0x8847 |<MPLS<br>
> label=16 cos=0 s=0 ttl=255 |<MPLS label=18 cos=0 s=0 ttl=255 |<MPLS<br>
> label=18 cos=0 s=0 ttl=255 |<MPLS label=16 c<br>
> os=0 s=1 ttl=255 |<IP version=4 ihl=5 tos=0x0 len=48 id=1 flags= frag=0<br>
> ttl=64 proto=icmp chksum=0x68c7 src=10.0.255.2 dst=10.0.255.2 options=[]<br>
> |<ICMP type=echo-request code=0 chksum<br>
> =0xcaf3 id=0x0 seq=0x0 |<Raw load='Foooooooooooooooook!' |>>>>>>>><br>
> <br>
> sendp(mpls_frame, iface="input")<br>
> <br>
> sendp(mpls_frame, iface="input", loop=1, inter=1.1)<br>
<br>
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<br>
</blockquote></div>