diff options
Diffstat (limited to 'tests/topotests/bgp_update_delay')
| -rw-r--r-- | tests/topotests/bgp_update_delay/__init__.py | 0 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r1/bgpd.conf | 10 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r1/zebra.conf | 9 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r2/bgpd.conf | 18 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r2/zebra.conf | 20 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r3/bgpd.conf | 10 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r3/zebra.conf | 9 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r4/bgpd.conf | 11 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r4/zebra.conf | 9 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r5/bgpd.conf | 11 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/r5/zebra.conf | 9 | ||||
| -rw-r--r-- | tests/topotests/bgp_update_delay/test_bgp_update_delay.py | 308 |
12 files changed, 424 insertions, 0 deletions
diff --git a/tests/topotests/bgp_update_delay/__init__.py b/tests/topotests/bgp_update_delay/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/tests/topotests/bgp_update_delay/__init__.py diff --git a/tests/topotests/bgp_update_delay/r1/bgpd.conf b/tests/topotests/bgp_update_delay/r1/bgpd.conf new file mode 100644 index 0000000..8ebb509 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r1/bgpd.conf @@ -0,0 +1,10 @@ +! exit1 +router bgp 65001 + no bgp ebgp-requires-policy + neighbor 192.168.255.1 remote-as 65002 + neighbor 192.168.255.1 timers connect 10 + address-family ipv4 unicast + redistribute connected + exit-address-family + ! +! diff --git a/tests/topotests/bgp_update_delay/r1/zebra.conf b/tests/topotests/bgp_update_delay/r1/zebra.conf new file mode 100644 index 0000000..9904bb4 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r1/zebra.conf @@ -0,0 +1,9 @@ +! exit1 +interface lo + ip address 172.16.255.254/32 +! +interface r1-eth0 + ip address 192.168.255.2/30 +! +ip forwarding +! diff --git a/tests/topotests/bgp_update_delay/r2/bgpd.conf b/tests/topotests/bgp_update_delay/r2/bgpd.conf new file mode 100644 index 0000000..438f995 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r2/bgpd.conf @@ -0,0 +1,18 @@ +! spine +router bgp 65002 + no bgp ebgp-requires-policy + timers bgp 3 9 + neighbor 192.168.255.2 remote-as 65001 + neighbor 192.168.254.2 remote-as 65003 + neighbor 192.168.253.2 remote-as 65004 + neighbor 192.168.255.2 timers connect 10 + neighbor 192.168.254.2 timers connect 10 + neighbor 192.168.253.2 timers connect 10 +! + router bgp 65002 vrf vrf1 + no bgp ebgp-requires-policy + timers bgp 3 9 + neighbor 192.168.252.2 remote-as 65005 + neighbor 192.168.252.2 timers connect 10 + ! +! diff --git a/tests/topotests/bgp_update_delay/r2/zebra.conf b/tests/topotests/bgp_update_delay/r2/zebra.conf new file mode 100644 index 0000000..420f00d --- /dev/null +++ b/tests/topotests/bgp_update_delay/r2/zebra.conf @@ -0,0 +1,20 @@ +! spine +interface r2-eth0 + ip address 192.168.255.1/30 +! +interface r2-eth1 + ip address 192.168.254.1/30 +! +interface r2-eth2 + ip address 192.168.253.1/30 +! +interface r2-eth3 + ip address 192.168.252.1/30 + vrf vrf1 +! +auto vrf1 +iface vrf1 + vrf-table auto +! +ip forwarding +! diff --git a/tests/topotests/bgp_update_delay/r3/bgpd.conf b/tests/topotests/bgp_update_delay/r3/bgpd.conf new file mode 100644 index 0000000..53e5178 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r3/bgpd.conf @@ -0,0 +1,10 @@ +! exit2 +router bgp 65003 + no bgp ebgp-requires-policy + timers bgp 3 9 + neighbor 192.168.254.1 remote-as 65002 + neighbor 192.168.254.1 timers connect 10 + address-family ipv4 unicast + redistribute connected + ! +! diff --git a/tests/topotests/bgp_update_delay/r3/zebra.conf b/tests/topotests/bgp_update_delay/r3/zebra.conf new file mode 100644 index 0000000..f490d97 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r3/zebra.conf @@ -0,0 +1,9 @@ +! exit2 +interface lo + ip address 172.16.254.254/32 +! +interface r3-eth0 + ip address 192.168.254.2/30 +! +ip forwarding +! diff --git a/tests/topotests/bgp_update_delay/r4/bgpd.conf b/tests/topotests/bgp_update_delay/r4/bgpd.conf new file mode 100644 index 0000000..34cb429 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r4/bgpd.conf @@ -0,0 +1,11 @@ +! exit2 +router bgp 65004 + no bgp ebgp-requires-policy + timers bgp 3 9 + neighbor 192.168.253.1 remote-as 65002 + neighbor 192.168.253.1 timers connect 10 + address-family ipv4 unicast + redistribute connected + exit-address-family + ! +! diff --git a/tests/topotests/bgp_update_delay/r4/zebra.conf b/tests/topotests/bgp_update_delay/r4/zebra.conf new file mode 100644 index 0000000..baba04c --- /dev/null +++ b/tests/topotests/bgp_update_delay/r4/zebra.conf @@ -0,0 +1,9 @@ +! exit2 +interface lo + ip address 172.16.253.254/32 +! +interface r4-eth0 + ip address 192.168.253.2/30 +! +ip forwarding +! diff --git a/tests/topotests/bgp_update_delay/r5/bgpd.conf b/tests/topotests/bgp_update_delay/r5/bgpd.conf new file mode 100644 index 0000000..66ecc70 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r5/bgpd.conf @@ -0,0 +1,11 @@ +! exit1 +router bgp 65005 + no bgp ebgp-requires-policy + timers bgp 3 9 + neighbor 192.168.252.1 remote-as 65002 + neighbor 192.168.252.1 timers connect 10 + address-family ipv4 unicast + redistribute connected + exit-address-family + ! +! diff --git a/tests/topotests/bgp_update_delay/r5/zebra.conf b/tests/topotests/bgp_update_delay/r5/zebra.conf new file mode 100644 index 0000000..8adf6f8 --- /dev/null +++ b/tests/topotests/bgp_update_delay/r5/zebra.conf @@ -0,0 +1,9 @@ +! exit1 +interface lo + ip address 172.16.252.254/32 +! +interface r1-eth0 + ip address 192.168.252.2/30 +! +ip forwarding +! diff --git a/tests/topotests/bgp_update_delay/test_bgp_update_delay.py b/tests/topotests/bgp_update_delay/test_bgp_update_delay.py new file mode 100644 index 0000000..1c00c49 --- /dev/null +++ b/tests/topotests/bgp_update_delay/test_bgp_update_delay.py @@ -0,0 +1,308 @@ +#!/usr/bin/env python + +# +# test_bgp_update_delay.py +# Part of NetDEF Topology Tests +# +# Copyright (c) 2019 by +# Don Slice <dslice@nvidia.com> +# +# Permission to use, copy, modify, and/or distribute this software +# for any purpose with or without fee is hereby granted, provided +# that the above copyright notice and this permission notice appear +# in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY +# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS +# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. +# + +""" +Test the ability to define update-delay to delay bestpath, rib install +and advertisement to peers when frr is started, restarted or "clear ip +bgp *" is performed. Test both the vrf-specific and global configuration +and operation. + +r1 +| +r2----r3 +| \ +| \ +r5 r4 + + +r2 is UUT and peers with r1, r3, and r4 in default bgp instance. +r2 peers with r5 in vrf vrf1. + +Check r2 initial convergence in default table +Define update-delay with max-delay in the default bgp instance on r2 +Shutdown peering on r1 toward r2 so that delay timers can be exercised +Clear bgp neighbors on r2 and then check for the 'in progress' indicator +Check that r2 only installs route learned from r4 after the max-delay timer expires +Define update-delay with max-delay and estabish-wait and check json output showing set +Clear neighbors on r2 and check that r3 installs route from r4 after establish-wait time +Remove update-delay timer on r2 to verify that it goes back to normal behavior +Clear neighbors on r2 and check that route install time on r2 does not delay +Define global bgp update-delay with max-delay and establish-wait on r2 +Check that r2 default instance and vrf1 have the max-delay and establish set +Clear neighbors on r2 and check route-install time is after the establish-wait timer + +Note that the keepalive/hold times were changed to 3/9 and the connect retry timer +to 10 to improve the odds the convergence timing in this test case is useful in the +event of packet loss. +""" + +import os +import sys +import json +import pytest +import functools + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib import topotest +from lib.topogen import Topogen, TopoRouter, get_topogen + +pytestmark = [pytest.mark.bgpd] + + +CWD = os.path.dirname(os.path.realpath(__file__)) + + +def build_topo(tgen): + for routern in range(1, 6): + tgen.add_router("r{}".format(routern)) + + switch = tgen.add_switch("s1") + switch.add_link(tgen.gears["r1"]) + switch.add_link(tgen.gears["r2"]) + + switch = tgen.add_switch("s2") + switch.add_link(tgen.gears["r2"]) + switch.add_link(tgen.gears["r3"]) + + switch = tgen.add_switch("s3") + switch.add_link(tgen.gears["r2"]) + switch.add_link(tgen.gears["r4"]) + + switch = tgen.add_switch("s4") + switch.add_link(tgen.gears["r2"]) + switch.add_link(tgen.gears["r5"]) + + +def setup_module(mod): + tgen = Topogen(build_topo, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for i, (rname, router) in enumerate(router_list.items(), 1): + router.load_config( + TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) + ) + router.load_config( + TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) + ) + + tgen.start_router() + + +def teardown_module(mod): + tgen = get_topogen() + tgen.stop_topology() + + +def test_bgp_update_delay(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + router1 = tgen.gears["r1"] + router2 = tgen.gears["r2"] + router3 = tgen.gears["r3"] + + # initial convergence without update-delay defined + def _bgp_converge(router): + output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.2 json")) + expected = { + "192.168.255.2": { + "bgpState": "Established", + "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 2}}, + } + } + return topotest.json_cmp(output, expected) + + def _bgp_check_update_delay(router): + output = json.loads(router.vtysh_cmd("show ip bgp sum json")) + expected = {"ipv4Unicast": {"updateDelayLimit": 20}} + + return topotest.json_cmp(output, expected) + + def _bgp_check_update_delay_in_progress(router): + output = json.loads(router.vtysh_cmd("show ip bgp sum json")) + expected = {"ipv4Unicast": {"updateDelayInProgress": True}} + + return topotest.json_cmp(output, expected) + + def _bgp_check_route_install(router): + output = json.loads(router.vtysh_cmd("show ip route 172.16.253.254/32 json")) + expected = {"172.16.253.254/32": [{"protocol": "bgp"}]} + + return topotest.json_cmp(output, expected) + + def _bgp_check_update_delay_and_wait(router): + output = json.loads(router.vtysh_cmd("show ip bgp sum json")) + expected = { + "ipv4Unicast": {"updateDelayLimit": 20, "updateDelayEstablishWait": 10} + } + + return topotest.json_cmp(output, expected) + + def _bgp_check_update_delay(router): + output = json.loads(router.vtysh_cmd("show ip bgp sum json")) + expected = {"ipv4Unicast": {"updateDelayLimit": 20}} + + return topotest.json_cmp(output, expected) + + def _bgp_check_vrf_update_delay_and_wait(router): + output = json.loads(router.vtysh_cmd("show ip bgp vrf vrf1 sum json")) + expected = { + "ipv4Unicast": {"updateDelayLimit": 20, "updateDelayEstablishWait": 10} + } + + return topotest.json_cmp(output, expected) + + # Check r2 initial convergence in default table + test_func = functools.partial(_bgp_converge, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed bgp convergence in "{}"'.format(router2) + + # Define update-delay with max-delay in the default bgp instance on r2 + router2.vtysh_cmd( + """ + configure terminal + router bgp 65002 + update-delay 20 + """ + ) + + # Shutdown peering on r1 toward r2 so that delay timers can be exercised + router1.vtysh_cmd( + """ + configure terminal + router bgp 65001 + neighbor 192.168.255.1 shut + """ + ) + + # Clear bgp neighbors on r2 and then check for the 'in progress' indicator + router2.vtysh_cmd("""clear ip bgp *""") + + test_func = functools.partial(_bgp_check_update_delay_in_progress, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed to set update-delay max-delay timer "{}"'.format( + router2 + ) + + # Check that r2 only installs route learned from r4 after the max-delay timer expires + test_func = functools.partial(_bgp_check_route_install, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed to install route after update-delay "{}"'.format( + router2 + ) + + # Define update-delay with max-delay and estabish-wait and check json output showing set + router2.vtysh_cmd( + """ + configure terminal + router bgp 65002 + update-delay 20 10 + """ + ) + + test_func = functools.partial(_bgp_check_update_delay_and_wait, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert ( + result is None + ), 'Failed to set max-delay and establish-weight timers in "{}"'.format(router2) + + # Define update-delay with max-delay and estabish-wait and check json output showing set + router2.vtysh_cmd("""clear ip bgp *""") + + test_func = functools.partial(_bgp_check_route_install, router3) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert ( + result is None + ), 'Failed to installed advertised route after establish-wait timer espired "{}"'.format( + router2 + ) + + # Remove update-delay timer on r2 to verify that it goes back to normal behavior + router2.vtysh_cmd( + """ + configure terminal + router bgp 65002 + no update-delay + """ + ) + + # Clear neighbors on r2 and check that route install time on r2 does not delay + router2.vtysh_cmd("""clear ip bgp *""") + + test_func = functools.partial(_bgp_check_route_install, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed to remove update-delay delay timing "{}"'.format( + router2 + ) + + # Define global bgp update-delay with max-delay and establish-wait on r2 + router2.vtysh_cmd( + """ + configure terminal + bgp update-delay 20 10 + """ + ) + + # Check that r2 default instance and vrf1 have the max-delay and establish set + test_func = functools.partial(_bgp_check_update_delay_and_wait, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed to set update-delay in default instance "{}"'.format( + router2 + ) + + test_func = functools.partial(_bgp_check_vrf_update_delay_and_wait, router2) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert result is None, 'Failed to set update-delay in vrf1 "{}"'.format(router2) + + # Clear neighbors on r2 and check route-install time is after the establish-wait timer + router2.vtysh_cmd("""clear ip bgp *""") + + test_func = functools.partial(_bgp_check_route_install, router3) + success, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + + assert ( + result is None + ), 'Failed to installed advertised route after establish-wait timer espired "{}"'.format( + router2 + ) + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |