& ofp_util|INFO|normalization changed ofp_match, details:
& ofp_util|INFO| pre: ip,nw_proto=21,tp_src=443
& ofp_util|INFO|post: ip,nw_proto=21
& ofp_util|INFO|normalization changed ofp_match, details:
& ofp_util|INFO| pre: ip,nw_proto=21,tp_src=443
& ofp_util|INFO|post: ip,nw_proto=21