for MPLS. With the userspace datapath only, these versions can
match, push, or pop a single MPLS label, but they still cannot look
past MPLS labels (even after popping them) into the encapsulated
- packet. Kernel datapath support is unchanged from earlier verions.
+ packet. Kernel datapath support is unchanged from earlier
+ versions.
Open vSwitch version 2.2 will be able to match, push, or pop up to
3 MPLS labels. Looking past MPLS labels into the encapsulated
even be convenient, e.g. it is often the desired behavior in a flow
that forwards a packet to several ports ("floods" the packet).
- Sometimes one really needs to send a packet out its ingress port.
- In this case, output to OFPP_IN_PORT, which in ovs-ofctl syntax is
- expressed as just "in_port", e.g.:
+ Sometimes one really needs to send a packet out its ingress port
+ ("hairpin"). In this case, output to OFPP_IN_PORT, which in
+ ovs-ofctl syntax is expressed as just "in_port", e.g.:
ovs-ofctl add-flow br0 in_port=2,actions=in_port