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|
#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# test_ldp_isis_topo1.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2020 by Volta Networks
#
"""
test_ldp_vpls_topo1.py:
+---------+ +---------+
| | | |
| CE1 | | CE2 |
| | | |
+---------+ +---------+
ce1-eth0 (172.16.1.1/24)| |ce2-eth0 (172.16.1.2/24)
| |
| |
rt1-eth0| |rt2-eth0
+---------+ 10.0.1.0/24 +---------+
| |rt1-eth1 | |
| RT1 +----------------+ RT2 |
| 1.1.1.1 | rt2-eth1| 2.2.2.2 |
| | | |
+---------+ +---------+
rt1-eth2| |rt2-eth2
| |
| |
10.0.2.0/24| +---------+ |10.0.3.0/24
| | | |
| | RT3 | |
+--------+ 3.3.3.3 +-------+
rt3-eth2| |rt3-eth1
+---------+
|rt3-eth0
|
|
ce3-eth0 (172.16.1.3/24)|
+---------+
| |
| CE3 |
| |
+---------+
"""
import os
import sys
import pytest
import json
from functools import partial
# Save the Current Working Directory to find configuration files.
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
# Import topogen and topotest helpers
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
from lib.snmptest import SnmpTester
# Required to instantiate the topology builder class.
pytestmark = [pytest.mark.ldpd, pytest.mark.isisd, pytest.mark.snmp]
def build_topo(tgen):
"Build function"
#
# Define FRR Routers
#
for router in ["ce1", "ce2", "ce3", "r1", "r2", "r3"]:
tgen.add_router(router)
#
# Define connections
#
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["ce1"])
switch.add_link(tgen.gears["r1"])
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["ce2"])
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["ce3"])
switch.add_link(tgen.gears["r3"])
switch = tgen.add_switch("s4")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s5")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r3"])
switch = tgen.add_switch("s6")
switch.add_link(tgen.gears["r2"])
switch.add_link(tgen.gears["r3"])
def setup_module(mod):
"Sets up the pytest environment"
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
# For all registered routers, load the zebra configuration file
for rname, router in router_list.items():
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
# Don't start isisd and ldpd in the CE nodes
if router.name[0] == "r":
router.load_config(
TopoRouter.RD_ISIS, os.path.join(CWD, "{}/isisd.conf".format(rname))
)
router.load_config(
TopoRouter.RD_LDP,
os.path.join(CWD, "{}/ldpd.conf".format(rname)),
"-M snmp",
)
router.load_config(
TopoRouter.RD_SNMP,
os.path.join(CWD, "{}/snmpd.conf".format(rname)),
"-Le -Ivacm_conf,usmConf,iquery -V -DAgentX,trap",
)
tgen.start_router()
def teardown_module():
"Teardown the pytest environment"
tgen = get_topogen()
# This function tears down the whole topology.
tgen.stop_topology()
def router_compare_json_output(rname, command, reference):
"Compare router JSON output"
logger.info('Comparing router "%s" "%s" output', rname, command)
tgen = get_topogen()
filename = "{}/{}/{}".format(CWD, rname, reference)
expected = json.loads(open(filename).read())
# Run test function until we get an result.
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=320, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
def test_isis_convergence():
logger.info("Test: check ISIS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["r1", "r2", "r3"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"show_yang_interface_isis_adjacencies.ref",
)
def test_rib():
logger.info("Test: verify RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
# TODO: disabling this check to avoid 'snmpd not running' errors
# if tgen.routers_have_failure():
# pytest.skip(tgen.errors)
for rname in ["r1", "r2", "r3"]:
router_compare_json_output(rname, "show ip route json", "show_ip_route.ref")
def test_ldp_adjacencies():
logger.info("Test: verify LDP adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
# TODO: disabling this check to avoid 'snmpd not running' errors
# if tgen.routers_have_failure():
# pytest.skip(tgen.errors)
for rname in ["r1", "r2", "r3"]:
router_compare_json_output(
rname, "show mpls ldp discovery json", "show_ldp_discovery.ref"
)
def test_ldp_neighbors():
logger.info("Test: verify LDP neighbors")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
# if tgen.routers_have_failure():
# pytest.skip(tgen.errors)
for rname in ["r1", "r2", "r3"]:
router_compare_json_output(
rname, "show mpls ldp neighbor json", "show_ldp_neighbor.ref"
)
def test_r1_ldp_lsr_objects():
"Test mplsLdpLsrObjects objects"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid("mplsLdpLsrId", "01 01 01 01")
assert r1_snmp.test_oid("mplsLdpLsrLoopDetectionCapable", "none(1)")
def test_r1_ldp_entity_table():
"Test mplsLdpEntityTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk("mplsLdpEntityLdpId", ["1.1.1.1:0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityIndex", ["1"])
assert r1_snmp.test_oid_walk("mplsLdpEntityProtocolVersion", ["1"])
assert r1_snmp.test_oid_walk("mplsLdpEntityAdminStatus", ["enable(1)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityOperStatus", ["enabled(2)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityTcpPort", ["646"])
assert r1_snmp.test_oid_walk("mplsLdpEntityUdpDscPort", ["646"])
assert r1_snmp.test_oid_walk("mplsLdpEntityMaxPduLength", ["4096 octets"])
assert r1_snmp.test_oid_walk("mplsLdpEntityKeepAliveHoldTimer", ["180 seconds"])
assert r1_snmp.test_oid_walk("mplsLdpEntityHelloHoldTimer", ["0 seconds"])
assert r1_snmp.test_oid_walk("mplsLdpEntityInitSessionThreshold", ["0"])
assert r1_snmp.test_oid_walk(
"mplsLdpEntityLabelDistMethod", ["downstreamUnsolicited(2)"]
)
assert r1_snmp.test_oid_walk("mplsLdpEntityLabelRetentionMode", ["liberal(2)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityPathVectorLimit", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityHopCountLimit", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityTransportAddrKind", ["loopback(2)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityTargetPeer", ["true(1)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityTargetPeerAddrType", ["ipv4(1)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityTargetPeerAddr", ["01 01 01 01"])
assert r1_snmp.test_oid_walk("mplsLdpEntityLabelType", ["generic(1)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityDiscontinuityTime", ["(0) 0:00:00.00"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStorageType", ["nonVolatile(3)"])
assert r1_snmp.test_oid_walk("mplsLdpEntityRowStatus", ["createAndGo(4)"])
def test_r1_ldp_entity_stats_table():
"Test mplsLdpEntityStatsTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsSessionAttempts", ["0"])
assert r1_snmp.test_oid_walk(
"mplsLdpEntityStatsSessionRejectedNoHelloErrors", ["0"]
)
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsSessionRejectedAdErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsSessionRejectedMaxPduErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsSessionRejectedLRErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsBadLdpIdentifierErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsBadPduLengthErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsBadMessageLengthErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsBadTlvLengthErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsMalformedTlvValueErrors", ["0"])
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsKeepAliveTimerExpErrors", ["0"])
assert r1_snmp.test_oid_walk(
"mplsLdpEntityStatsShutdownReceivedNotifications", ["0"]
)
assert r1_snmp.test_oid_walk("mplsLdpEntityStatsShutdownSentNotifications", ["0"])
def test_r1_ldp_peer_table():
"Test mplsLdpPeerTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk("mplsLdpPeerLdpId", ["2.2.2.2:0", "3.3.3.3:0"])
assert r1_snmp.test_oid_walk(
"mplsLdpPeerLabelDistMethod",
["downstreamUnsolicited(2)", "downstreamUnsolicited(2)"],
)
assert r1_snmp.test_oid_walk("mplsLdpPeerPathVectorLimit", ["0", "0"])
assert r1_snmp.test_oid_walk("mplsLdpPeerTransportAddrType", ["ipv4(1)", "ipv4(1)"])
assert r1_snmp.test_oid_walk(
"mplsLdpPeerTransportAddr", ["02 02 02 02", "03 03 03 03"]
)
def test_r1_ldp_session_table():
"Test mplsLdpSessionTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk(
"mplsLdpSessionState", ["operational(5)", "operational(5)"]
)
assert r1_snmp.test_oid_walk("mplsLdpSessionRole", ["passive(3)", "passive(3)"])
assert r1_snmp.test_oid_walk("mplsLdpSessionProtocolVersion", ["1", "1"])
assert r1_snmp.test_oid_walk(
"mplsLdpSessionKeepAliveTime", ["180 seconds", "180 seconds"]
)
assert r1_snmp.test_oid_walk(
"mplsLdpSessionMaxPduLength", ["4096 octets", "4096 octets"]
)
assert r1_snmp.test_oid_walk(
"mplsLdpSessionDiscontinuityTime", ["(0) 0:00:00.00", "(0) 0:00:00.00"]
)
def test_r1_ldp_session_stats_table():
"Test mplsLdpSessionStatsTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk("mplsLdpSessionStatsUnknownMesTypeErrors", ["0", "0"])
assert r1_snmp.test_oid_walk("mplsLdpSessionStatsUnknownTlvErrors", ["0", "0"])
def test_r1_ldp_hello_adjacency_table():
"Test mplsLdpHelloAdjacencyTable"
tgen = get_topogen()
r1 = tgen.gears["r1"]
r1_snmp = SnmpTester(r1, "1.1.1.1", "public", "2c")
assert r1_snmp.test_oid_walk("mplsLdpHelloAdjacencyIndex", ["1", "2", "1"])
assert r1_snmp.test_oid_walk("mplsLdpHelloAdjacencyHoldTime", ["15", "45", "15"])
assert r1_snmp.test_oid_walk(
"mplsLdpHelloAdjacencyType", ["link(1)", "targeted(2)", "link(1)"]
)
# Memory leak test template
# disabling memory leak
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))
|
