Ah. I recognize what you're trying to do now. OVS doesn't have good support for the push/pop model for tunnels. The "encap" action is a start at this, but it currently supports only nsh and I'm not convinced that the implementation is high quality.
On Thu, Jul 08, 2021 at 05:35:27PM +0000, Dr. Helen Chen wrote: > When my OVS contains both gre and the physical interface, packets match on > in_port=physical-intf, rather than in_port=gre. Is there a way to force the > packet to be matched on gre and have them recognized as tunneled packets? I > tried resubmit and mirroring, but they didn't work. > > For what it's worth, what I want OVS to do with respect to GRE is more like > pushing/popping MPLS labels based on routing, instead of bridging, assuming > that mixing packets in different domains means mixing packets in different > bridge domains. > > Thanks, > Helen > > On 7/7/21, 12:27 PM, "Ben Pfaff" <b...@ovn.org> wrote: > > It's possible but not widely done, since it doesn't generally make sense > from the perspective of mixing packets in different domains. I don't > know anyone who does it. > > On Wed, Jul 07, 2021 at 03:38:39PM +0000, Dr. Helen Chen wrote: > > In the OVS documentation quoted below, it states that "physical ingress > ports (which need not be part of any switch)...". > > > > Is it correct to assume that the physical ingress port (of the gre > tunnel) can optionally be part of the switch that also has the gre tunnel? > If so, is there documented example configuration? (So far, I've only seen > OVS configuration where switch consists of only gre tunnel but not the > physical ingress port of the tunnel.) > > > > Thanks, > > Helen > > > > -----Original Message----- > > From: Ben Pfaff <b...@ovn.org> > > Sent: Friday, July 2, 2021 1:46 PM > > To: Dr. Shukri George Abdallah <sabdal...@mitre.org> > > Cc: ovs-discuss@openvswitch.org > > Subject: Re: [EXT] Re: [ovs-discuss] How to match on the physical > and logical ingress ports > > > > The documentation says this: > > > > A packet’s ingress port and physical ingress port are > identical except > > for packets processed by a switch feature such as bonding > or tunneling > > that makes a packet appear to arrive on a ``virtual’’ > port associated > > with the bond or the tunnel. For such packets, the ingress > port is the > > virtual port and the physical ingress port is, naturally, > the physical > > port. Open vSwitch implements both bonding and tunneling, > but its bonding > > implementation does not use virtual ports and its tunnels > are typically > > not on the same OpenFlow switch as their physical ingress > ports (which > > need not be part of any switch), so the ingress port and > physical ingress > > port are always the same in Open vSwitch. > > > > For bonding, OVS in_port always matches on the physical input port. > > > > For tunneling, OVS doesn't pass along the physical input port but > only the virtual one. You might be able to set the packet mark in the > physical bridge and then match on it in the virtual one, though. > > > > On Thu, Jul 01, 2021 at 06:04:29PM +0000, Dr. Shukri George > Abdallah wrote: > > > Hi > > > > > > Please see > https://opennetworking.org/wp-content/uploads/2014/10/openflow-switch-v1.3.5.pdf > Section 7.2.3.9 .This link uses the term "logical" > > > > > > Please see > https://www.man7.org/linux/man-pages/man7/ovs-fields.7.html. This link uses > the term "virtual". > > > > > > The context is GRE tunneling > > > > > > Shukri > > > -----Original Message----- > > > From: Ben Pfaff <b...@ovn.org> > > > Sent: Thursday, July 1, 2021 1:37 PM > > > To: Dr. Shukri George Abdallah <sabdal...@mitre.org> > > > Cc: ovs-discuss@openvswitch.org > > > Subject: [EXT] Re: [ovs-discuss] How to match on the physical and > > > logical ingress ports > > > > > > On Thu, Jul 01, 2021 at 02:51:13PM +0000, Dr. Shukri George > Abdallah wrote: > > > > When the physical ingress port is different than the logical > ingress > > > > port, using the ovs-ofctl utility, how can one match on the > physical > > > > and logical ingress ports? > > > > > > How are you defining "physical" and "logical" ingress ports here? > Out of context, it's not clear. > > > > _______________________________________________ > > discuss mailing list > > disc...@openvswitch.org > > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
