Hiya, If you aren't familiar, OFTest is a set of conformance tests for openflow switches. We used it heavily at the ONF interop event two weeks ago and as a result a few of us have started running it against other switches available to us, including OVS. Fwiw, it's available for download from `git clone git://github.com/floodlight/oftest`.
In any case, the pktact.SingleWildcardMatch and pktact.AllExceptOneWildcardMatch tests were failing because it looks like OVS (v1.4 release) was not matching vlan tagged packets when the match wildcarded vlan but the dl_vlan value (which should be ignored, because it is wildcarded) was non-zero. We've worked around this in OFTest by making sure that the dl_vlan value is zero when vlan is wildcarded and now the test passes. In other words: if (ofp_match->wildcards&OFPFW_DL_VLAN) is true, then the match should match both tagged and untagged packets, independent of the value of ofp_match->dl_vlan. OVS (seemingly) only matches tagged packets if ofp_match->dl_vlan == 0. I thought I would drop you a line just FYI -- it's seems fairly likely this is a bug in OVS (albeit, a very minor one), but just in case someone is running an older version of OFTest I thought it was worth mentioning. Hope this information is useful to someone, - Rob . PS If there is any interest in contributing back to OFTest, please let me know. It seems like it might be used to inform some of the tests for the ONF testing and interop WG, so it would be great to see more participation in that. _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
