build: Fix makefile syntax
[vpp.git] / test / test_mtu.py
index 4159deb..6735cc6 100644 (file)
@@ -99,7 +99,7 @@ class TestMTU(VppTestCase):
             chksum=0x2DBB,
         )
         icmp4_reply = (
-            IP(src=self.pg0.local_ip4, dst=self.pg0.remote_ip4, ttl=254, len=576, id=0)
+            IP(src=self.pg0.local_ip4, dst=self.pg0.remote_ip4, ttl=255, len=576, id=0)
             / p_icmp4
             / p_ip4
             / p_payload
@@ -113,6 +113,8 @@ class TestMTU(VppTestCase):
             # n.show2()
             self.validate_bytes(bytes(p[1]), icmp4_reply)
 
+        self.assert_error_counter_equal("/err/ip4-input/mtu_exceeded", 11)
+
         # Now with DF off. Expect fragments.
         # First go with 1500 byte packets.
         p_payload = UDP(sport=1234, dport=1234) / self.payload(1500 - 20 - 8)
@@ -191,6 +193,8 @@ class TestMTU(VppTestCase):
         for p in rx:
             self.validate_bytes(bytes(p[1]), icmp6_reply_str)
 
+        self.assert_error_counter_equal("/err/ip6-input/mtu_exceeded", 9)
+
         # Reset MTU
         self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [current_mtu, 0, 0, 0])