467 lines
16 KiB
Python
467 lines
16 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_ospf_prefix_p2mp_non_broadcast.py
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#
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# Copyright (c) 2024 LabN Consulting
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# Acee Lindem
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#
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import os
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import sys
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import json
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from time import sleep
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from functools import partial
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import pytest
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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from lib.common_config import (
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run_frr_cmd,
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shutdown_bringup_interface,
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start_router_daemons,
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step,
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)
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"""
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test_ospf_p2mp_non_broadcast.py: Test OSPF Point-to-multipoint Non-Broadcast
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Full Mesh
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"""
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TOPOLOGY = """
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+-----+ +-----+
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10.1.1.0/24 | r1 | | r2 | 10.1.2.0/24
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-----------+ | | +----------
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+--+--+ +--+--+
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| 10.1.0.0/24 |
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| +-------+ |
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+---- | |-----+
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| P2MP |
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+---- | |-----+
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| +-------+ |
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+--+--+ +-+---+
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10.1.3.0/24 | r3 | | r4 | 10.1.4.0/24
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-----------+ | | +----------
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+-----+ +-----+
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"""
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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# Required to instantiate the topology builder class.
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pytestmark = [pytest.mark.ospfd, pytest.mark.bgpd]
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def build_topo(tgen):
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"Build function"
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# Create 4 routers
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tgen.add_router("r1")
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tgen.add_router("r2")
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tgen.add_router("r3")
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tgen.add_router("r4")
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# Interconect them all to the P2MP network
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switch = tgen.add_switch("s0-p2mp")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r2"])
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switch.add_link(tgen.gears["r3"])
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switch.add_link(tgen.gears["r4"])
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# Add standalone network to router 1
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switch = tgen.add_switch("s-r1-1")
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switch.add_link(tgen.gears["r1"])
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# Add standalone network to router 2
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switch = tgen.add_switch("s-r2-1")
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switch.add_link(tgen.gears["r2"])
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# Add standalone network to router 3
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switch = tgen.add_switch("s-r3-1")
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switch.add_link(tgen.gears["r3"])
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# Add standalone network to router 4
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switch = tgen.add_switch("s-r4-1")
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switch.add_link(tgen.gears["r4"])
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def setup_module(mod):
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logger.info("OSPF Point-to-MultiPoint Non-Broadcast:\n {}".format(TOPOLOGY))
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tgen = Topogen(build_topo, mod.__name__)
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tgen.start_topology()
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# Starting Routers
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router_list = tgen.routers()
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for rname, router in router_list.items():
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logger.info("Loading router %s" % rname)
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router.load_frr_config(
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os.path.join(CWD, "{}/frr-p2mp-non-broadcast.conf".format(rname))
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)
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# Initialize all routers.
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tgen.start_router()
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def teardown_module(mod):
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"Teardown the pytest environment"
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tgen = get_topogen()
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tgen.stop_topology()
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def verify_p2mp_interface(tgen, router, nbr_cnt, nbr_adj_cnt, non_broadcast):
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"Verify the P2MP Configuration and interface settings"
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topo_router = tgen.gears[router]
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step("Test running configuration for P2MP configuration")
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rc = 0
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rc, _, _ = tgen.net[router].cmd_status(
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"show running ospfd | grep 'ip ospf network point-to-multipoint'", warn=False
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)
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assertmsg = (
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"'ip ospf network point-to-multipoint' applied, but not present in "
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+ router
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+ "configuration"
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)
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assert rc, assertmsg
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step("Test OSPF interface for P2MP settings")
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input_dict = {
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"interfaces": {
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"r1-eth0": {
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"ospfEnabled": True,
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"interfaceIp": {
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"10.1.0.1": {
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"ipAddress": "10.1.0.1",
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"ipAddressPrefixlen": 24,
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"ospfIfType": "Broadcast",
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"routerId": "1.1.1.1",
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"networkType": "POINTOMULTIPOINT",
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"cost": 10,
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"state": "Point-To-Point",
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"nbrCount": nbr_cnt,
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"nbrAdjacentCount": nbr_adj_cnt,
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"prefixSuppression": False,
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"p2mpDelayReflood": False,
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"p2mpNonBroadcast": non_broadcast,
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}
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},
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"ipAddress": "10.1.0.1",
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"ipAddressPrefixlen": 24,
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"ospfIfType": "Broadcast",
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"area": "0.0.0.0",
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"routerId": "1.1.1.1",
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"networkType": "POINTOMULTIPOINT",
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"cost": 10,
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"state": "Point-To-Point",
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"opaqueCapable": True,
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"nbrCount": nbr_cnt,
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"nbrAdjacentCount": nbr_adj_cnt,
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"prefixSuppression": False,
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"p2mpDelayReflood": False,
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"p2mpNonBroadcast": non_broadcast,
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}
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}
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}
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test_func = partial(
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topotest.router_json_cmp,
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topo_router,
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"show ip ospf interface r1-eth0 json",
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input_dict,
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
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assertmsg = "P2MP Interface Mismatch on router r1"
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assert result is None, assertmsg
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def verify_p2mp_neighbor(tgen, router, neighbor, state, intf_addr, interface):
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topo_router = tgen.gears[router]
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step("Verify neighbor " + neighbor + " in " + state + " state")
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input_dict = {
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"default": {
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neighbor: [
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{
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"nbrState": state,
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"ifaceAddress": intf_addr,
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"ifaceName": interface,
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}
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],
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}
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}
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test_func = partial(
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topotest.router_json_cmp,
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topo_router,
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"show ip ospf neighbor " + neighbor + " json",
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input_dict,
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
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assertmsg = "P2MP Neighbor " + neighbor + " not in " + state
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assert result is None, assertmsg
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def verify_p2mp_route(tgen, router, prefix, prefix_len, nexthop, interface):
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topo_router = tgen.gears[router]
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step("Verify router " + router + " p2mp route " + prefix + " installed")
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input_dict = {
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prefix: [
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{
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"prefix": prefix,
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"prefixLen": prefix_len,
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"protocol": "ospf",
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"nexthops": [
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{
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"ip": nexthop,
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"interfaceName": interface,
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}
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],
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}
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]
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}
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test_func = partial(
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topotest.router_json_cmp,
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topo_router,
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"show ip route " + prefix + " json",
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input_dict,
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
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assertmsg = prefix + " not installed on router " + router
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assert result is None, assertmsg
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def test_p2mp_non_broadcast_connectivity():
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tgen = get_topogen()
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r1 = tgen.gears["r1"]
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if tgen.routers_have_failure():
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pytest.skip("Skipped because of router(s) failure")
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step("Verify router r1 interface OSPF point-to-multipoint non-broadcast interface")
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verify_p2mp_interface(tgen, "r1", 3, 3, True)
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step("Verify router r1 interface r1-eth0 p2mp non-broadcast configuration")
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rc, _, _ = tgen.net["r1"].cmd_status(
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"show running ospfd | grep -q 'ip ospf network point-to-multipoint non-broadcast'",
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warn=False,
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)
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assertmsg = "'ip ospf network point-to-multipoint non-broadcast' applied, but not present in R1 configuration"
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assert rc, assertmsg
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step("Verify router r1 OSPF point-to-multipoint neighbors")
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verify_p2mp_neighbor(
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tgen, "r1", "2.2.2.2", "Full/DROther", "10.1.0.2", "r1-eth0:10.1.0.1"
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)
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verify_p2mp_neighbor(
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tgen, "r1", "3.3.3.3", "Full/DROther", "10.1.0.3", "r1-eth0:10.1.0.1"
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)
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verify_p2mp_neighbor(
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tgen, "r1", "4.4.4.4", "Full/DROther", "10.1.0.4", "r1-eth0:10.1.0.1"
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)
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step("Verify router r1 OSPF point-to-multipoint routes are installed")
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verify_p2mp_route(tgen, "r1", "10.1.2.0/24", 24, "10.1.0.2", "r1-eth0")
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verify_p2mp_route(tgen, "r1", "10.1.3.0/24", 24, "10.1.0.3", "r1-eth0")
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verify_p2mp_route(tgen, "r1", "10.1.4.0/24", 24, "10.1.0.4", "r1-eth0")
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step("Remove r1 interface r1-eth0 p2mp non-broadcast configuration")
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r1.vtysh_cmd("conf t\ninterface r1-eth0\nip ospf network point-to-multipoint")
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rc, _, _ = tgen.net["r1"].cmd_status(
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"show running ospfd | grep -q 'ip ospf network point-to-multipoint non-broadcast'",
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warn=False,
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)
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assertmsg = "'ip ospf network point-to-multipoint non-broadcast' not applied, but present in r1 configuration"
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assert rc, assertmsg
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step("Verify router r1 interface OSPF point-to-multipoint broadcast interface")
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verify_p2mp_interface(tgen, "r1", 3, 3, False)
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step("Add r1 interface r1-eth0 p2mp non-broadcast configuration back")
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r1.vtysh_cmd(
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"conf t\ninterface r1-eth0\nip ospf network point-to-multipoint non-broadcast"
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)
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rc, _, _ = tgen.net["r1"].cmd_status(
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"show running ospfd | grep 'ip ospf network point-to-multipoint non-broadcast'",
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warn=False,
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)
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assertmsg = "'ip ospf netrwork point-to-multipoint non-broadcast' applied, but not present in R1 configuration"
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assert rc, assertmsg
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step("Verify router r1 interface OSPF point-to-multipoint non-broadcast interface")
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verify_p2mp_interface(tgen, "r1", 3, 3, True)
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step(
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"Verify router r1 OSPF point-to-multipoint neighbors adjacencies restablished."
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)
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verify_p2mp_neighbor(
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tgen, "r1", "2.2.2.2", "Full/DROther", "10.1.0.2", "r1-eth0:10.1.0.1"
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)
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verify_p2mp_neighbor(
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tgen, "r1", "3.3.3.3", "Full/DROther", "10.1.0.3", "r1-eth0:10.1.0.1"
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)
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verify_p2mp_neighbor(
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tgen, "r1", "4.4.4.4", "Full/DROther", "10.1.0.4", "r1-eth0:10.1.0.1"
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)
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def test_p2mp_non_broadcast_partial_mesh_connectivity():
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tgen = get_topogen()
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if tgen.routers_have_failure():
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pytest.skip("Skipped because of router(s) failure")
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"""
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test_ospf_p2mp_non_broadcast.py: Test OSPF Point-to-multipoint Non-Broadcast
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Partial Mesh
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"""
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TOPOLOGY = """
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+-----+ +------+
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10.1.1.0/24 | r1 | | r4 | 10.1.4.0/24
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-----------+ | | +----------
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+-+---+ +--+-+-+
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| P2MP |
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| Non-Broadcast |
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| 10.1.0.0/24 |
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+-+---+ +-+---+
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10.1.2.0/24 | r2 | | r3 | 10.1.3.0/24
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-----------+ +--------------+ +----------
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+-----+ +-----+
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"""
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logger.info("OSPF Point-to-MultiPoint Non-Broadcast:\n {}".format(TOPOLOGY))
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step("Change configuration to a partial mesh")
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step("Delete neighbors in full mesh")
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r1 = tgen.gears["r1"]
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r1.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.3")
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r1.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.4")
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r2 = tgen.gears["r2"]
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r2.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.4")
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r3 = tgen.gears["r3"]
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r3.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.1")
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r4 = tgen.gears["r4"]
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r4.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.1")
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r4.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.2")
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step("Flap interfaces on P2MP network to avoid transients")
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r1.vtysh_cmd("conf t\ninterface r1-eth0\nshut")
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r2.vtysh_cmd("conf t\ninterface r2-eth0\nshut")
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r3.vtysh_cmd("conf t\ninterface r3-eth0\nshut")
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r4.vtysh_cmd("conf t\ninterface r4-eth0\nshut")
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r1.vtysh_cmd("conf t\ninterface r1-eth0\nno shut")
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r2.vtysh_cmd("conf t\ninterface r2-eth0\nno shut")
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r3.vtysh_cmd("conf t\ninterface r3-eth0\nno shut")
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r4.vtysh_cmd("conf t\ninterface r4-eth0\nno shut")
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step("Verify router r1 interface OSPF point-to-multipoint non-broadcast interface")
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verify_p2mp_interface(tgen, "r1", 1, 1, True)
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step("Verify router r1 interface r1-eth0 p2mp neighbor")
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verify_p2mp_neighbor(
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tgen, "r1", "2.2.2.2", "Full/DROther", "10.1.0.2", "r1-eth0:10.1.0.1"
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)
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step("Verify router r1 p2mp routes are installed")
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verify_p2mp_route(tgen, "r1", "10.1.2.0/24", 24, "10.1.0.2", "r1-eth0")
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verify_p2mp_route(tgen, "r1", "10.1.3.0/24", 24, "10.1.0.2", "r1-eth0")
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verify_p2mp_route(tgen, "r1", "10.1.4.0/24", 24, "10.1.0.2", "r1-eth0")
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"""
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test_ospf_p2mp_non_broadcast.py: Test OSPF Point-to-multipoint Non-Broadcast
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Modified Partial Mesh
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"""
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TOPOLOGY = """
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+-----+ +------+
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10.1.1.0/24 | r1 | | r4 | 10.1.4.0/24
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-----------+ +-------------+ +----------
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+-----+ +--+-+-+
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P2MP |
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Non-Broadcast |
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10.1.0.0/24 |
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+-+---+ +-+---+
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10.1.2.0/24 | r2 | | r3 | 10.1.3.0/24
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-----------+ +--------------+ +----------
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+-----+ +-----+
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"""
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logger.info("OSPF Point-to-MultiPoint Non-Broadcast:\n {}".format(TOPOLOGY))
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step("Change configuration to a partial mesh")
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step("Modify neighbors in partial mesh")
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r1 = tgen.gears["r1"]
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r1.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.2")
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r1.vtysh_cmd("conf t\nrouter ospf\nneighbor 10.1.0.4 poll-interval 5")
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r2 = tgen.gears["r2"]
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r2.vtysh_cmd("conf t\nrouter ospf\nno neighbor 10.1.0.1")
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r4 = tgen.gears["r4"]
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r4.vtysh_cmd("conf t\nrouter ospf\nneighbor 10.1.0.1")
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step("Flap interfaces on P2MP network to avoid transients")
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r1.vtysh_cmd("conf t\ninterface r1-eth0\nshut")
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r2.vtysh_cmd("conf t\ninterface r2-eth0\nshut")
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r3.vtysh_cmd("conf t\ninterface r3-eth0\nshut")
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r4.vtysh_cmd("conf t\ninterface r4-eth0\nshut")
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r1.vtysh_cmd("conf t\ninterface r1-eth0\nno shut")
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r2.vtysh_cmd("conf t\ninterface r2-eth0\nno shut")
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r3.vtysh_cmd("conf t\ninterface r3-eth0\nno shut")
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r4.vtysh_cmd("conf t\ninterface r4-eth0\nno shut")
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step("Verify router r1 interface r1-eth0")
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step("Verify router r1 interface OSPF point-to-multipoint non-broadcast interface")
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verify_p2mp_interface(tgen, "r1", 1, 1, True)
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step("Verify router r1 interface r1-eth0 p2mp neighbor")
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input_dict = {
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"neighbors": {
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"4.4.4.4": [
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{
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"nbrState": "Full/DROther",
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"ifaceAddress": "10.1.0.4",
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"ifaceName": "r1-eth0:10.1.0.1",
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}
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],
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}
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}
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test_func = partial(
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topotest.router_json_cmp, r1, "show ip ospf neighbor json", input_dict
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
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assertmsg = "P2MP Non-Broadcast Neighbors not adjacent on router r1"
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assert result is None, assertmsg
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|
|
|
step("Verify router r1 interface r1-eth0 p2mp routes are installed")
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|
verify_p2mp_route(tgen, "r1", "10.1.2.0/24", 24, "10.1.0.4", "r1-eth0")
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|
verify_p2mp_route(tgen, "r1", "10.1.3.0/24", 24, "10.1.0.4", "r1-eth0")
|
|
verify_p2mp_route(tgen, "r1", "10.1.4.0/24", 24, "10.1.0.4", "r1-eth0")
|
|
|
|
|
|
def test_memory_leak():
|
|
"Run the memory leak test and report results."
|
|
tgen = get_topogen()
|
|
if not tgen.is_memleak_enabled():
|
|
pytest.skip("Memory leak test/report is disabled")
|
|
|
|
tgen.report_memory_leaks()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
args = ["-s"] + sys.argv[1:]
|
|
sys.exit(pytest.main(args))
|