+ s.assertNotContains(o, "failed:")
+}
+
+func (s *VethsSuite) TestTcpWithLoss() {
+ serverVpp := s.getContainerByName("server-vpp").vppInstance
+
+ serverVeth := s.netInterfaces[serverInterfaceName]
+ serverVpp.vppctl("test echo server uri tcp://%s/20022",
+ serverVeth.ip4AddressString())
+
+ clientVpp := s.getContainerByName("client-vpp").vppInstance
+
+ // Ensure that VPP doesn't abort itself with NSIM enabled
+ // Warning: Removing this ping will make the test fail!
+ clientVpp.vppctl("ping %s", serverVeth.ip4AddressString())
+
+ // Add loss of packets with Network Delay Simulator
+ clientVpp.vppctl("set nsim poll-main-thread delay 0.01 ms bandwidth 40 gbit" +
+ " packet-size 1400 packets-per-drop 1000")
+
+ clientVpp.vppctl("nsim output-feature enable-disable host-vppcln")
+
+ // Do echo test from client-vpp container
+ output := clientVpp.vppctl("test echo client uri tcp://%s/20022 verbose echo-bytes mbytes 50",
+ serverVeth.ip4AddressString())
+ s.log(output)
+ s.assertNotEqual(len(output), 0)
+ s.assertNotContains(output, "failed: timeout")