From 18a8f4079393e4c58a7b05e34c529bca4294cfa0 Mon Sep 17 00:00:00 2001 From: Donald Sharp Date: Tue, 11 Apr 2023 09:15:13 -0400 Subject: [PATCH 1/2] tests: Fix evpn tests to ensure mac addresses will show up Locally, the bgp_evpn_vxlan_svd_topo1 and bgp_evpn_vxlan_topo1 tests are failing for me. Upon inspection the test is looking for the mac addresses of the interfaces participating in the evpn bridging on the hosts. For some reason on my machine these mac addresses are not in the l2 tables at all on PE1 or PE2. Adding quick pings solves the problems. Signed-off-by: Donald Sharp --- .../test_bgp_evpn_vxlan_svd.py | 9 +++++++++ .../bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py | 10 ++++++++++ 2 files changed, 19 insertions(+) diff --git a/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py b/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py index 8b9631175a..b0f974d0cb 100755 --- a/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py +++ b/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py @@ -231,6 +231,15 @@ def test_pe1_converge_evpn(): _, result = topotest.run_and_expect(test_func, None, count=45, wait=1) assertmsg = '"{}" JSON output mismatches'.format(pe1.name) + # Let's ensure that the hosts have actually tried talking to + # each other. Otherwise under certain startup conditions + # they may not actually do any l2 arp'ing and as such + # the bridges won't know about the hosts on their networks + host1 = tgen.gears["host1"] + host1.run("ping -c 1 10.10.1.56") + host2 = tgen.gears["host2"] + host2.run("ping -c 1 10.10.1.55") + test_func = partial( check_vni_macs_present, tgen, diff --git a/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py b/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py index 6561833d6e..8f3cf9cdec 100755 --- a/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py +++ b/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py @@ -164,6 +164,15 @@ def test_pe1_converge_evpn(): _, result = topotest.run_and_expect(test_func, None, count=45, wait=1) assertmsg = '"{}" JSON output mismatches'.format(pe1.name) + # Let's ensure that the hosts have actually tried talking to + # each other. Otherwise under certain startup conditions + # they may not actually do any l2 arp'ing and as such + # the bridges won't know about the hosts on their networks + host1 = tgen.gears["host1"] + host1.run("ping -c 1 10.10.1.56") + host2 = tgen.gears["host2"] + host2.run("ping -c 1 10.10.1.55") + test_func = partial( check_vni_macs_present, tgen, @@ -171,6 +180,7 @@ def test_pe1_converge_evpn(): 101, (("host1", "host1-eth0"), ("host2", "host2-eth0")), ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) if result: logger.warning("%s", result) From d6f34434e81beb66e52df25809abcc20de0e5902 Mon Sep 17 00:00:00 2001 From: Donald Sharp Date: Tue, 11 Apr 2023 09:16:36 -0400 Subject: [PATCH 2/2] tests: Cleanup formatting in a couple of test scripts Signed-off-by: Donald Sharp --- .../test_bgp_evpn_vxlan_svd.py | 41 ++++++++++++------- .../test_bgp_evpn_vxlan.py | 8 ++-- 2 files changed, 31 insertions(+), 18 deletions(-) diff --git a/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py b/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py index b0f974d0cb..65c0c3532a 100755 --- a/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py +++ b/tests/topotests/bgp_evpn_vxlan_svd_topo1/test_bgp_evpn_vxlan_svd.py @@ -83,6 +83,7 @@ def build_topo(tgen): switch.add_link(tgen.gears["PE2"]) switch.add_link(tgen.gears["host2"]) + def setup_pe_router(tgen, pe_name, tunnel_local_ip, svi_ip, intf): pe = tgen.gears[pe_name] @@ -100,7 +101,9 @@ def setup_pe_router(tgen, pe_name, tunnel_local_ip, svi_ip, intf): # setup single vxlan device pe.run( - "ip link add dev vxlan0 type vxlan dstport 4789 local {0} nolearning external".format(tunnel_local_ip) + "ip link add dev vxlan0 type vxlan dstport 4789 local {0} nolearning external".format( + tunnel_local_ip + ) ) pe.run("ip link set dev vxlan0 master bridge") pe.run("bridge link set dev vxlan0 vlan_tunnel on") @@ -136,10 +139,12 @@ def setup_pe_router(tgen, pe_name, tunnel_local_ip, svi_ip, intf): pe.run("bridge vlan add dev vxlan0 vid 300") pe.run("bridge vlan add dev vxlan0 vid 300 tunnel_info id 300") + def setup_p_router(tgen, p_name): p1 = tgen.gears[p_name] p1.run("sysctl -w net.ipv4.ip_forward=1") + def setup_module(mod): "Sets up the pytest environment" @@ -180,7 +185,7 @@ def teardown_module(mod): "Teardown the pytest environment" tgen = get_topogen() - #tgen.mininet_cli() + # tgen.mininet_cli() # This function tears down the whole topology. tgen.stop_topology() @@ -204,17 +209,21 @@ def check_vni_macs_present(tgen, router, vni, maclist): ) return None + def check_flood_entry_present(pe, vni, vtep): if not topotest.iproute2_is_fdb_get_capable(): return None - output = pe.run("bridge fdb get 00:00:00:00:00:00 dev vxlan0 vni {} self".format(vni)) + output = pe.run( + "bridge fdb get 00:00:00:00:00:00 dev vxlan0 vni {} self".format(vni) + ) if str(vtep) not in output: return output return None + def test_pe1_converge_evpn(): "Wait for protocol convergence" @@ -258,11 +267,12 @@ def test_pe1_converge_evpn(): assertmsg = '"{}" Flood FDB Entry for VTEP {} not found'.format(pe1.name, vtep) assert result is None, assertmsg + def test_pe2_converge_evpn(): "Wait for protocol convergence" tgen = get_topogen() -#Don't run this test if we have any failure. + # Don't run this test if we have any failure. if tgen.routers_have_failure(): pytest.skip(tgen.errors) @@ -293,6 +303,7 @@ def test_pe2_converge_evpn(): assertmsg = '"{}" Flood FDB Entry for VTEP {} not found'.format(pe2.name, vtep) assert result is None, assertmsg + def mac_learn_test(host, local): "check the host MAC gets learned by the VNI" @@ -398,11 +409,11 @@ def ip_learn_test(tgen, host, local, remote, ip_addr): if "HWaddr" in line_items[0]: mac = line_items[1] break - #print(host_output) + # print(host_output) # check we have a local association between the MAC and IP local_output = local.vtysh_cmd("show evpn mac vni 101 mac {} json".format(mac)) - #print(local_output) + # print(local_output) local_output_json = json.loads(local_output) mac_type = local_output_json[mac]["type"] assertmsg = "Failed to learn local IP address on host {}".format(host.name) @@ -426,7 +437,7 @@ def ip_learn_test(tgen, host, local, remote, ip_addr): remote_output = remote.vtysh_cmd( "show evpn mac vni 101 mac {} json".format(mac) ) - #print(remote_output) + # print(remote_output) remote_output_json = json.loads(remote_output) type = remote_output_json[mac]["type"] if not remote_output_json[mac]["neighbors"] == "none": @@ -440,12 +451,12 @@ def ip_learn_test(tgen, host, local, remote, ip_addr): count += 1 sleep(1) - #print("tries: {}".format(count)) + # print("tries: {}".format(count)) assertmsg = "{} remote learned mac no address: {} ".format(host.name, mac) # some debug for this failure if not converged == True: log_output = remote.run("cat zebra.log") - #print(log_output) + # print(log_output) assert converged == True, assertmsg if remote_output_json[mac]["neighbors"]["active"]: @@ -472,8 +483,8 @@ def test_ip_pe1_learn(): host1 = tgen.gears["host1"] pe1 = tgen.gears["PE1"] pe2 = tgen.gears["PE2"] - #pe2.vtysh_cmd("debug zebra vxlan") - #pe2.vtysh_cmd("debug zebra kernel") + # pe2.vtysh_cmd("debug zebra vxlan") + # pe2.vtysh_cmd("debug zebra kernel") # lets populate that arp cache host1.run("ping -c1 10.10.1.1") ip_learn_test(tgen, host1, pe1, pe2, "10.10.1.55") @@ -491,13 +502,14 @@ def test_ip_pe2_learn(): host2 = tgen.gears["host2"] pe1 = tgen.gears["PE1"] pe2 = tgen.gears["PE2"] - #pe1.vtysh_cmd("debug zebra vxlan") - #pe1.vtysh_cmd("debug zebra kernel") + # pe1.vtysh_cmd("debug zebra vxlan") + # pe1.vtysh_cmd("debug zebra kernel") # lets populate that arp cache host2.run("ping -c1 10.10.1.3") ip_learn_test(tgen, host2, pe2, pe1, "10.10.1.56") # tgen.mininet_cli() + def show_dvni_route(pe, vni, prefix, vrf): output = pe.vtysh_cmd("show ip route vrf {} {}".format(vrf, prefix)) @@ -511,6 +523,7 @@ def show_dvni_route(pe, vni, prefix, vrf): return None + def test_dvni(): "test Downstream VNI works as expected importing into PE1" @@ -526,7 +539,7 @@ def test_dvni(): _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) assertmsg = '"{}" DVNI route {} not found'.format(pe1.name, prefix) assert result is None, assertmsg - #tgen.mininet_cli() + # tgen.mininet_cli() def test_memory_leak(): diff --git a/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py b/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py index 8f3cf9cdec..2884043012 100755 --- a/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py +++ b/tests/topotests/bgp_evpn_vxlan_topo1/test_bgp_evpn_vxlan.py @@ -395,8 +395,8 @@ def test_ip_pe1_learn(): host1 = tgen.gears["host1"] pe1 = tgen.gears["PE1"] pe2 = tgen.gears["PE2"] - #pe2.vtysh_cmd("debug zebra vxlan") - #pe2.vtysh_cmd("debug zebra kernel") + # pe2.vtysh_cmd("debug zebra vxlan") + # pe2.vtysh_cmd("debug zebra kernel") # lets populate that arp cache host1.run("ping -c1 10.10.1.1") ip_learn_test(tgen, host1, pe1, pe2, "10.10.1.55") @@ -414,8 +414,8 @@ def test_ip_pe2_learn(): host2 = tgen.gears["host2"] pe1 = tgen.gears["PE1"] pe2 = tgen.gears["PE2"] - #pe1.vtysh_cmd("debug zebra vxlan") - #pe1.vtysh_cmd("debug zebra kernel") + # pe1.vtysh_cmd("debug zebra vxlan") + # pe1.vtysh_cmd("debug zebra kernel") # lets populate that arp cache host2.run("ping -c1 10.10.1.3") ip_learn_test(tgen, host2, pe2, pe1, "10.10.1.56")