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tests: Add new pim mrib tests
Test mrib overrides and rpf lookup mode changes. Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
This commit is contained in:
Nathan Bahr
parent
5cce666d49
commit
d334f84156
0
tests/topotests/pim_mrib/__init__.py
Executable file
0
tests/topotests/pim_mrib/__init__.py
Executable file
28
tests/topotests/pim_mrib/r1/frr.conf
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28
tests/topotests/pim_mrib/r1/frr.conf
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@ -0,0 +1,28 @@
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!
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hostname r1
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password zebra
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log file /tmp/r1-frr.log
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!
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!debug pim nht
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!debug pim nht detail
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!debug pim nht rp
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!
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interface r1-eth0
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ip address 10.0.0.1/24
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ip igmp
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ip pim
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!
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interface r1-eth1
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ip address 10.0.1.1/24
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ip igmp
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ip pim
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!
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ip forwarding
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!
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ip route 10.0.2.0/24 10.0.0.2 50
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ip route 10.0.3.0/24 10.0.1.3 50
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!
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router pim
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rpf-lookup-mode mrib-then-urib
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rp 10.0.0.1 224.0.0.0/4
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!
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28
tests/topotests/pim_mrib/r2/frr.conf
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tests/topotests/pim_mrib/r2/frr.conf
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!
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hostname r2
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password zebra
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log file /tmp/r2-frr.log
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!
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!debug pim nht
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!debug pim nht detail
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!debug pim nht rp
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!
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interface r2-eth0
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ip address 10.0.0.2/24
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ip igmp
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ip pim
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!
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interface r2-eth1
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ip address 10.0.2.2/24
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ip igmp
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ip pim
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!
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ip forwarding
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!
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ip route 10.0.1.0/24 10.0.0.1 50
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ip route 10.0.3.0/24 10.0.2.4 50
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!
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router pim
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rpf-lookup-mode mrib-then-urib
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rp 10.0.0.1 224.0.0.0/4
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!
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28
tests/topotests/pim_mrib/r3/frr.conf
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tests/topotests/pim_mrib/r3/frr.conf
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!
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hostname r3
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password zebra
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log file /tmp/r3-frr.log
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!
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!debug pim nht
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!debug pim nht detail
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!debug pim nht rp
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!
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interface r3-eth0
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ip address 10.0.1.3/24
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ip igmp
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ip pim
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!
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interface r3-eth1
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ip address 10.0.3.3/24
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ip igmp
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ip pim
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!
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ip forwarding
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!
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ip route 10.0.0.0/24 10.0.1.1 50
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ip route 10.0.2.0/24 10.0.3.4 50
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!
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router pim
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rpf-lookup-mode mrib-then-urib
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rp 10.0.0.1 224.0.0.0/4
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!
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29
tests/topotests/pim_mrib/r4/frr.conf
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tests/topotests/pim_mrib/r4/frr.conf
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!
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hostname r4
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password zebra
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log file /tmp/r4-frr.log
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!
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debug pim nht
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debug pim nht detail
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debug pim nht rp
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debug zebra rib detail
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!
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interface r4-eth0
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ip address 10.0.2.4/24
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ip igmp
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ip pim
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!
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interface r4-eth1
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ip address 10.0.3.4/24
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ip igmp
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ip pim
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!
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ip forwarding
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!
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ip route 10.0.0.0/24 10.0.2.2 50
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ip route 10.0.1.0/24 10.0.3.3 50
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!
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router pim
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rpf-lookup-mode mrib-then-urib
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rp 10.0.0.1 224.0.0.0/4
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!
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328
tests/topotests/pim_mrib/test_pim_mrib.py
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tests/topotests/pim_mrib/test_pim_mrib.py
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#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_pim_mrib.py
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#
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# Copyright (c) 2024 ATCorp
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# Nathan Bahr
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#
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import os
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import sys
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import pytest
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from functools import partial
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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, get_topogen
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from lib.topolog import logger
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from lib.pim import (
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verify_pim_rp_info,
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)
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from lib.common_config import step, write_test_header
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"""
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test_pim_mrib.py: Test PIM MRIB overrides and RPF modes
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"""
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TOPOLOGY = """
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Test PIM MRIB overrides and RPF modes
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+---+---+ +---+---+
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| | 10.0.0.0/24 | |
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+ R1 +----------------------+ R2 |
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| | .1 .2 | |
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+---+---+ r1-eth0 r2-eth0 +---+---+
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.1 | r1-eth1 r2-eth1 | .2
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| |
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10.0.1.0/24 | | 10.0.2.0/24
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| |
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.3 | r3-eth0 r4-eth0 | .4
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+---+---+ r3-eth1 r4-eth1 +---+---+
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| | .3 .4 | |
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+ R3 +----------------------+ R4 |
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| | 10.0.3.0/24 | |
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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.pimd]
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def build_topo(tgen):
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'''Build function'''
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# Create 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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# Create topology links
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tgen.add_link(tgen.gears["r1"], tgen.gears["r2"], "r1-eth0", "r2-eth0")
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tgen.add_link(tgen.gears["r1"], tgen.gears["r3"], "r1-eth1", "r3-eth0")
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tgen.add_link(tgen.gears["r2"], tgen.gears["r4"], "r2-eth1", "r4-eth0")
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tgen.add_link(tgen.gears["r3"], tgen.gears["r4"], "r3-eth1", "r4-eth1")
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def setup_module(mod):
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logger.info("PIM MRIB/RPF functionality:\n {}".format(TOPOLOGY))
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tgen = Topogen(build_topo, mod.__name__)
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tgen.start_topology()
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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(os.path.join(CWD, "{}/frr.conf".format(rname)))
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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 test_pim_mrib_init(request):
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'''Test boot in MRIB-than-URIB with the default MRIB'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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step("Verify rp-info using default URIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth0",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_override(request):
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'''Test MRIB override nexthop'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Install a MRIB route that has a shorter prefix length and lower cost.
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# In MRIB-than-URIB mode, it should use this route
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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ip mroute 10.0.0.0/16 10.0.3.3 25
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'''
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)
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step("Verify rp-info using MRIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth1",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_prefix_mode(request):
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'''Test longer prefix lookup mode'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Switch to longer prefix match, should switch back to the URIB route
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# even with the lower cost, the longer prefix match will win because of the mode
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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router pim
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rpf-lookup-mode longer-prefix
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'''
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)
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step("Verify rp-info using URIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth0",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_dist_mode(request):
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'''Test lower distance lookup mode'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Switch to lower distance match, should switch back to the MRIB route
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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router pim
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rpf-lookup-mode lower-distance
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'''
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)
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step("Verify rp-info using MRIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth1",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_urib_mode(request):
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'''Test URIB only lookup mode'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Switch to urib only match, should switch back to the URIB route
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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router pim
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rpf-lookup-mode urib-only
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'''
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)
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step("Verify rp-info using URIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth0",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_mrib_mode(request):
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'''Test MRIB only lookup mode'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Switch to mrib only match, should switch back to the MRIB route
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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router pim
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rpf-lookup-mode mrib-only
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'''
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)
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step("Verify rp-info using MRIB nexthop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"r4-eth1",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_pim_mrib_mrib_mode_no_route(request):
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'''Test MRIB only with no route'''
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tgen = get_topogen()
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tc_name = request.node.name
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write_test_header(tc_name)
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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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# Remove the MRIB route, in mrib-only mode, it should switch to no path for the RP
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tgen.routers()["r4"].vtysh_cmd(
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'''
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conf term
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no ip mroute 10.0.0.0/16 10.0.3.3 25
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'''
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)
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step("Verify rp-info with Unknown next hop")
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result = verify_pim_rp_info(
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tgen,
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None,
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"r4",
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"224.0.0.0/4",
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"Unknown",
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"10.0.0.1",
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"Static",
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False,
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"ipv4",
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True,
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)
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assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
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def test_memory_leak():
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'''Run the memory leak test and report results.'''
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tgen = get_topogen()
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if not tgen.is_memleak_enabled():
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pytest.skip("Memory leak test/report is disabled")
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tgen.report_memory_leaks()
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if __name__ == "__main__":
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args = ["-s"] + sys.argv[1:]
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sys.exit(pytest.main(args))
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