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tests: extend topotest to test NSSA ranges

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Test NSSA address ranges, including the "cost" and "not-advertise"
options.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2021-10-05 21:25:55 -03:00
parent cb81dd25e5
commit 343e16cec5
1 changed files with 99 additions and 1 deletions
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100
tests/topotests/ospf6_topo2/test_ospf6_topo2.py
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@ -131,6 +131,8 @@ def build_topo(tgen):
switch.add_link(tgen.gears["r2"])
switch.add_link(tgen.gears["r4"])
switch = tgen.add_switch("s4")
switch.add_link(tgen.gears["r4"], nodeif="r4-stubnet")
def setup_module(mod):
"Sets up the pytest environment"
@ -484,7 +486,7 @@ def test_area_filters():
pytest.skip(tgen.errors)
#
# Configure import/export filters on r2 (ABR for area 1).
# Configure import/export filters on r2 (ABR for area 2).
#
config = """
configure terminal
@ -544,6 +546,102 @@ def test_area_filters():
expect_ospfv3_routes("r1", routes, wait=30, type="inter-area")
def test_nssa_range():
"""
Test NSSA ABR ranges.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Configure new addresses on r4 and enable redistribution of connected
# routes.
config = """
configure terminal
interface r4-stubnet
ipv6 address 2001:db8:1000::1/128
ipv6 address 2001:db8:1000::2/128
router ospf6
redistribute connected
"""
tgen.gears["r4"].vtysh_cmd(config)
logger.info("Expecting NSSA-translated external routes to be added on r3")
routes = {"2001:db8:1000::1/128": {}, "2001:db8:1000::2/128": {}}
expect_ospfv3_routes("r3", routes, wait=30, type="external-2")
# Configure an NSSA range on r2 (ABR for area 2).
config = """
configure terminal
router ospf6
area 2 nssa range 2001:db8:1000::/64
"""
tgen.gears["r2"].vtysh_cmd(config)
logger.info("Expecting summarized routes to be removed from r3")
for route in ["2001:db8:1000::1/128", "2001:db8:1000::2/128"]:
test_func = partial(dont_expect_route, "r3", route, type="external-2")
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = "{}'s {} summarized route still exists".format("r3", route)
assert result is None, assertmsg
logger.info("Expecting NSSA range to be added on r3")
routes = {
"2001:db8:1000::/64": {
"metricType":2,
"metricCost":20,
"metricCostE2":10,
}}
expect_ospfv3_routes("r3", routes, wait=30, type="external-2", detail=True)
# Change the NSSA range cost.
config = """
configure terminal
router ospf6
area 2 nssa range 2001:db8:1000::/64 cost 1000
"""
tgen.gears["r2"].vtysh_cmd(config)
logger.info("Expecting NSSA range to be updated with new cost")
routes = {
"2001:db8:1000::/64": {
"metricType":2,
"metricCost":20,
"metricCostE2":1000,
}}
expect_ospfv3_routes("r3", routes, wait=30, type="external-2", detail=True)
# Configure the NSSA range to not be advertised.
config = """
configure terminal
router ospf6
area 2 nssa range 2001:db8:1000::/64 not-advertise
"""
tgen.gears["r2"].vtysh_cmd(config)
logger.info("Expecting NSSA summary route to be removed")
route = "2001:db8:1000::/64"
test_func = partial(dont_expect_route, "r3", route, type="external-2")
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = "{}'s {} NSSA summary route still exists".format("r3", route)
assert result is None, assertmsg
# Remove the NSSA range.
config = """
configure terminal
router ospf6
no area 2 nssa range 2001:db8:1000::/64
"""
tgen.gears["r2"].vtysh_cmd(config)
logger.info("Expecting previously summarized routes to be re-added")
routes = {
"2001:db8:1000::1/128": {
"metricType":2,
"metricCost":20,
},
"2001:db8:1000::2/128": {
"metricType":2,
"metricCost":20,
},
}
expect_ospfv3_routes("r3", routes, wait=30, type="external-2", detail=True)
def teardown_module(_mod):
"Teardown the pytest environment"
tgen = get_topogen()