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tests: remove ipv4 and ipv6 in bgp_evpn_rt5

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Removal of IPv6 was already tested in bgp_evpn_rt5 topotest, however
IPv4 was not tested afterwards. This now removes IPv6 routes first,
then adds them back and removes IPv4 afterwards, waiting for
convergence everytime.

Signed-off-by: Christopher Dziomba <christopher.dziomba@telekom.de>
This commit is contained in:
Christopher Dziomba 2025-04-22 17:25:57 +02:00
parent 0c14dd3af6
commit ab68237e3e
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1 changed files with 135 additions and 48 deletions
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183
tests/topotests/bgp_evpn_rt5/test_bgp_evpn.py
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@ -180,34 +180,35 @@ def teardown_module(_mod):
tgen.stop_topology()
def _test_evpn_ping_router(pingrouter, ipv4_only=False):
def _test_evpn_ping_router(pingrouter, ipv4_only=False, ipv6_only=False):
"""
internal function to check ping between r1 and r2
"""
# Check IPv4 and IPv6 connectivity between r1 and r2 ( routing vxlan evpn)
logger.info(
"Check Ping IPv4 from R1(r1-vrf-101) to R2(r2-vrf-101 = 192.168.101.41)"
)
output = pingrouter.run("ip netns exec r1-vrf-101 ping 192.168.101.41 -f -c 1000")
logger.info(output)
if "1000 packets transmitted, 1000 received" not in output:
assertmsg = (
"expected ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) should be ok"
if not ipv6_only:
logger.info(
"Check Ping IPv4 from R1(r1-vrf-101) to R2(r2-vrf-101 = 192.168.101.41)"
)
assert 0, assertmsg
else:
logger.info("Check Ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) OK")
output = pingrouter.run(
"ip netns exec r1-vrf-101 ping 192.168.101.41 -f -c 1000"
)
logger.info(output)
if "1000 packets transmitted, 1000 received" not in output:
assertmsg = "expected ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) should be ok"
assert 0, assertmsg
else:
logger.info("Check Ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) OK")
if ipv4_only:
return
logger.info("Check Ping IPv6 from R1(r1-vrf-101) to R2(r2-vrf-101 = fd00::2)")
output = pingrouter.run("ip netns exec r1-vrf-101 ping fd00::2 -f -c 1000")
logger.info(output)
if "1000 packets transmitted, 1000 received" not in output:
assert 0, "expected ping IPv6 from R1(r1-vrf-101) to R2(fd00::2) should be ok"
else:
logger.info("Check Ping IPv6 from R1(r1-vrf-101) to R2(fd00::2) OK")
if not ipv4_only:
logger.info("Check Ping IPv6 from R1(r1-vrf-101) to R2(r2-vrf-101 = fd00::2)")
output = pingrouter.run("ip netns exec r1-vrf-101 ping fd00::2 -f -c 1000")
logger.info(output)
if "1000 packets transmitted, 1000 received" not in output:
assert (
0
), "expected ping IPv6 from R1(r1-vrf-101) to R2(fd00::2) should be ok"
else:
logger.info("Check Ping IPv6 from R1(r1-vrf-101) to R2(fd00::2) OK")
def test_protocols_convergence():
@ -239,6 +240,16 @@ def test_protocols_convergence():
assert result is None, assertmsg
def _print_evpn_nexthop_rmac(router):
tgen = get_topogen()
output = tgen.gears[router].vtysh_cmd("show evpn next-hops vni all", isjson=False)
logger.info("==== result from {} show evpn next-hops vni all".format(router))
logger.info(output)
output = tgen.gears[router].vtysh_cmd("show evpn rmac vni all", isjson=False)
logger.info("==== result from {}: show evpn rmac vni all".format(router))
logger.info(output)
def test_protocols_dump_info():
"""
Dump EVPN information
@ -273,12 +284,7 @@ def test_protocols_dump_info():
output = tgen.gears["r1"].vtysh_cmd("show evpn vni detail", isjson=False)
logger.info("==== result from show evpn vni detail")
logger.info(output)
output = tgen.gears["r1"].vtysh_cmd("show evpn next-hops vni all", isjson=False)
logger.info("==== result from show evpn next-hops vni all")
logger.info(output)
output = tgen.gears["r1"].vtysh_cmd("show evpn rmac vni all", isjson=False)
logger.info("==== result from show evpn rmac vni all")
logger.info(output)
_print_evpn_nexthop_rmac("r1")
def test_router_check_ip():
@ -342,7 +348,7 @@ def _test_router_check_evpn_next_hop(expected_paths=1):
assert result is None, "evpn ipv6 next-hops check failed"
def _test_router_check_evpn_contexts(router, ipv4_only=False):
def _test_router_check_evpn_contexts(router, ipv4_only=False, ipv6_only=False):
"""
Check EVPN nexthops and RMAC number are correctly configured
"""
@ -355,6 +361,15 @@ def _test_router_check_evpn_contexts(router, ipv4_only=False):
},
}
}
elif ipv6_only:
expected = {
"101": {
"numNextHops": 1,
"::ffff:192.168.100.41": {
"nexthopIp": "::ffff:192.168.100.41",
},
}
}
else:
expected = {
"101": {
@ -434,6 +449,26 @@ def test_evpn_disable_routemap():
assert result is None, assertmsg
def _check_evpn_routes(router, family, vrf, routes, expected=True):
tgen = get_topogen()
rib_routes = {
"r1": {
"static_routes": [
{
"vrf": vrf,
"network": routes,
}
]
}
}
result = verify_bgp_rib(tgen, family, router, rib_routes, expected=expected)
if expected:
assert result is True, "expect routes {} present".format(routes)
else:
assert result is not True, "expect routes {} not present".format(routes)
def test_evpn_remove_ip():
"""
Check the removal of an EVPN route is correctly handled
@ -458,25 +493,8 @@ def test_evpn_remove_ip():
assert result is True, "Failed to remove IPv6 network on R2, Error: {} ".format(
result
)
ipv6_routes = {
"r1": {
"static_routes": [
{
"vrf": "r1-vrf-101",
"network": ["fd00::2/128"],
}
]
}
}
result = verify_bgp_rib(tgen, "ipv6", "r1", ipv6_routes, expected=False)
assert result is not True, "expect IPv6 route fd00::2/128 withdrawn"
output = tgen.gears["r1"].vtysh_cmd("show evpn next-hops vni all", isjson=False)
logger.info("==== result from show evpn next-hops vni all")
logger.info(output)
output = tgen.gears["r1"].vtysh_cmd("show evpn rmac vni all", isjson=False)
logger.info("==== result from show evpn next-hops vni all")
logger.info(output)
_check_evpn_routes("r1", "ipv6", "r1-vrf-101", ["fd00::2/128"], expected=False)
_print_evpn_nexthop_rmac("r1")
def test_router_check_evpn_contexts_again():
@ -502,6 +520,75 @@ def test_evpn_ping_again():
_test_evpn_ping_router(tgen.gears["r1"], ipv4_only=True)
def test_evpn_other_address_family():
"""
Check the removal of an EVPN route is correctly handled
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
config_add_ipv6 = {
"r2": {
"raw_config": [
"router bgp 65000 vrf r2-vrf-101",
"address-family ipv6 unicast",
"network fd00::3/128",
"network fd00::2/128",
]
}
}
logger.info("==== Add IPv6 again network on R2")
result = apply_raw_config(tgen, config_add_ipv6)
assert result is True, "Failed to add IPv6 network on R2, Error: {} ".format(result)
_check_evpn_routes("r1", "ipv6", "r1-vrf-101", ["fd00::2/128"], expected=True)
config_no_ipv4 = {
"r2": {
"raw_config": [
"router bgp 65000 vrf r2-vrf-101",
"address-family ipv4 unicast",
"no network 192.168.101.41/32",
"no network 192.168.102.41/32",
]
}
}
logger.info("==== Remove IPv4 network on R2")
result = apply_raw_config(tgen, config_no_ipv4)
assert result is True, "Failed to remove IPv4 network on R2, Error: {} ".format(
result
)
_check_evpn_routes(
"r1", "ipv4", "r1-vrf-101", ["192.168.101.41/32"], expected=False
)
_print_evpn_nexthop_rmac("r1")
def test_router_check_evpn_contexts_again_other_address_family():
"""
Check EVPN nexthops and RMAC number are correctly configured
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
_test_router_check_evpn_contexts(tgen.gears["r1"], ipv6_only=True)
def test_evpn_ping_again_other_address_family():
"""
Check ping between R1 and R2 is ok
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
_test_evpn_ping_router(tgen.gears["r1"], ipv6_only=True)
def _get_established_epoch(router, peer):
"""
Get the established epoch for a peer