Signed-off-by: Johnson Li <johnson...@intel.com>

diff --git a/lib/match.c b/lib/match.c
index db78831..f12c802 100644
--- a/lib/match.c
+++ b/lib/match.c
@@ -1046,6 +1046,40 @@ format_ct_label_masked(struct ds *s, const ovs_u128 
*key, const ovs_u128 *mask)
     }
 }
 
+static void
+format_flow_nsh(struct ds *s, const struct match *match)
+{
+    const struct flow_wildcards *wc = &match->wc;
+    const struct flow_nsh *nsh = &match->flow.nsh;
+
+    if (nsh->md_type) {
+        format_be32_masked(s, "nsp", nsh->nsp, wc->masks.nsh.nsp);
+        ds_put_format(s, "nsi=%"PRIu8",", nsh->nsi);
+
+        if (wc->masks.nsh.flags) {
+            format_be32_masked(s, "flags", nsh->flags, wc->masks.nsh.flags);
+        }
+        if (wc->masks.nsh.md_type) {
+            ds_put_format(s, "md_type=%"PRIu8",", nsh->md_type);
+        }
+        if (wc->masks.nsh.next_proto) {
+            ds_put_format(s, "next_proto=%"PRIu8",", nsh->next_proto);
+        }
+        if (wc->masks.nsh.nshc1) {
+            format_be32_masked(s, "nshc1", nsh->nshc1, wc->masks.nsh.nshc1);
+        }
+        if (wc->masks.nsh.nshc2) {
+            format_be32_masked(s, "nshc2", nsh->nshc2, wc->masks.nsh.nshc2);
+        }
+        if (wc->masks.nsh.nshc3) {
+            format_be32_masked(s, "nshc3", nsh->nshc3, wc->masks.nsh.nshc3);
+        }
+        if (wc->masks.nsh.nshc4) {
+            format_be32_masked(s, "nshc4", nsh->nshc4, wc->masks.nsh.nshc4);
+        }
+    }
+}
+
 /* Appends a string representation of 'match' to 's'.  If 'priority' is
  * different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
 void
@@ -1187,6 +1221,8 @@ match_format(const struct match *match, struct ds *s, int 
priority)
 
     format_be64_masked(s, "metadata", f->metadata, wc->masks.metadata);
 
+    format_flow_nsh(s, match);
+
     if (wc->masks.in_port.ofp_port) {
         ds_put_format(s, "%sin_port=%s", colors.param, colors.end);
         ofputil_format_port(f->in_port.ofp_port, s);
-- 
1.8.4.2

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