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author | IWASE Yusuke <iwase.yusuke0@gmail.com> | 2018-05-16 16:01:34 +0900 |
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committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2018-05-23 13:00:33 +0900 |
commit | 87245b488bedca33b766ccd967636946416587cc (patch) | |
tree | 3216742a11ba1533f2b75cc625245e97de84bcb4 /test | |
parent | 34f74cd314c512ee028983a321d1012f63adb26d (diff) |
bgp_zebra_nht_test: Test cases when nexthop unreachable
Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Diffstat (limited to 'test')
-rw-r--r-- | test/scenario_test/bgp_zebra_nht_test.py | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/scenario_test/bgp_zebra_nht_test.py b/test/scenario_test/bgp_zebra_nht_test.py index b7937ccd..ff5eb77a 100644 --- a/test/scenario_test/bgp_zebra_nht_test.py +++ b/test/scenario_test/bgp_zebra_nht_test.py @@ -223,6 +223,60 @@ class ZebraNHTTest(unittest.TestCase): assert_several_times(f=_f_r2) assert_several_times(f=_f_r1) + def test_06_nexthop_unreachable(self): + # Test to update the nexthop state if nexthop become unreachable by + # link down. If the link r2-r3 and r2-r4 goes down, there is no route + # to r3. + + def _f_r2(): + self.assertEqual(self.r2.local( + "gobgp global rib -a ipv4 10.3.1.0/24" + " | grep '^* ' > /dev/null" + " && echo OK || echo NG", + capture=True), 'OK') + + def _f_r1(): + self.assertEqual(self.r1.local( + "gobgp global rib -a ipv4 10.3.1.0/24" + "| grep 'Network not in table' > /dev/null" + " && echo OK || echo NG", + capture=True), 'OK') + + ifname = get_ifname_with_prefix('192.168.23.3/24', f=self.r3.local) + self.r3.local('ip link set %s down' % ifname) + ifname = get_ifname_with_prefix('192.168.24.4/24', f=self.r4.local) + self.r4.local('ip link set %s down' % ifname) + + assert_several_times(f=_f_r2, t=120) + assert_several_times(f=_f_r1, t=120) + # Confirm the stability of the nexthop state + for _ in range(10): + time.sleep(1) + _f_r2() + _f_r1() + + def test_07_nexthop_restore(self): + # Test to update the nexthop state if nexthop become reachable again. + # If the link r2-r3 and r2-r4 goes up again, MED/Metric should be + # update with the initial value. + + # MED/Metric = 10(r2 to r3) + 10(r3-ethX to r3-lo) + med = 20 + + def _f_r2(): + self._assert_med_equal(self.r2, '10.3.1.0/24', med) + + def _f_r1(): + self._assert_med_equal(self.r1, '10.3.1.0/24', med) + + ifname = get_ifname_with_prefix('192.168.23.3/24', f=self.r3.local) + self.r3.local('ip link set %s up' % ifname) + ifname = get_ifname_with_prefix('192.168.24.4/24', f=self.r4.local) + self.r4.local('ip link set %s up' % ifname) + + assert_several_times(f=_f_r2) + assert_several_times(f=_f_r1) + if __name__ == '__main__': output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True) |