make -C tools/testing/selftests TARGETS="net/forwarding" TEST_PROGS=min_maax_mtu.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-2/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make[1]: Entering directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
TAP version 13
1..1
# timeout set to 10800
# selftests: net/forwarding: min_max_mtu.sh
# 6.31 [+6.31] TEST: ping                                                          [ OK ]
# 7.30 [+0.99] TEST: ping6                                                         [ OK ]
# 7.45 [+0.15] TEST: Test maximum MTU configuration                                [ OK ]
# 9.98 [+2.54] TEST: Test traffic, packet size is maximum MTU                      [ OK ]
# 10.13 [+0.15] TEST: Test minimum MTU configuration                                [ OK ]
# 11.28 [+1.15] TEST: Test traffic, packet size is minimum MTU                      [ OK ]
ok 1 selftests: net/forwarding: min_max_mtu.sh
make[1]: Leaving directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make: Leaving directory '/home/virtme/testing-2/tools/testing/selftests'
xx__-> echo $?
0
xx__->