[ovs-discuss] MPLS pop issue
Pier Luigi Ventre
pl.ventre at gmail.com
Mon Nov 3 13:34:39 UTC 2014
I am a researcher at univ. of Rome Tor Vergata, working on SDN. We are
developing an open source hybrid ip/sdn node (see
We are working on an open source implementation of Segment Routing
(SR). We are using Open vswitch (v 2.390) and operating in kernel
We push 3 mpls labels in the ingress node and then sends the packet in
An intermediate node is able to pop the outer mpls label and then the
packet correctly reaches the egress node with two labels, here we want
to pop the outer label, to resubmit the packet to the node and to pop
again the inner label, but it doesn't work. Specifically, we set this
1) cookie=0x0, duration=861.515s, table=1, n_packets=6, n_bytes=300,
2) cookie=0x81dd5b3a7078e64b, duration=264.606s, table=1, n_packets=6,
Both rules match (and the first pop works), but at the end the packet
does not exit from the port 11 and it seems to disappear.
It seems that the "recirculation" feature that should have been
recently merged in the main openvswitch tree is not working.
Can you help us ? Do you have any suggestion ?
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