X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_vxlan.py;h=6bdcb258bcd37c5ee37ed43bccb27260f2563aee;hb=d927834a1f4dfd18eb4d0788e69f106fc3780ef8;hp=ee829a31a288909e18fce222a097961821bd3152;hpb=6ae5ee7addcbb85e614a49fe7903df5bbb4ded22;p=vpp.git

diff --git a/test/test_vxlan.py b/test/test_vxlan.py
index ee829a31a28..6bdcb258bcd 100644
--- a/test/test_vxlan.py
+++ b/test/test_vxlan.py
@@ -101,12 +101,14 @@ class TestVxlan(BridgeDomain, VppTestCase):
         vni_start = 10000
         vni_end = vni_start + n_shared_dst_tunnels
         for vni in range(vni_start, vni_end):
-            cls.vapi.vxlan_add_del_tunnel(
+            r = cls.vapi.vxlan_add_del_tunnel(
                 src_addr=cls.pg0.local_ip4n,
                 dst_addr=cls.mcast_ip4n,
                 mcast_sw_if_index=1,
                 vni=vni,
                 is_add=is_add)
+            if r.sw_if_index == 0xffffffff:
+                raise "bad sw_if_index"
 
     @classmethod
     def add_shared_mcast_dst_load(cls):