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frr/tests/topotests/isis_sr_topo1/test_isis_sr_topo1.py

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Adding upstream version 10.1.1. Signed-off-by: Daniel Baumann <daniel@debian.org>
2025-02-05 10:03:58 +01:00
#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# test_isis_sr_topo1.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2019 by
# Network Device Education Foundation, Inc. ("NetDEF")
#
"""
test_isis_sr_topo1.py:
+---------+
| |
| RT1 |
| 1.1.1.1 |
| |
+---------+
|eth-sw1
|
|
|
+---------+ | +---------+
| | | | |
| RT2 |eth-sw1 | eth-sw1| RT3 |
| 2.2.2.2 +----------+----------+ 3.3.3.3 |
| | 10.0.1.0/24 | |
+---------+ +---------+
eth-rt4-1| |eth-rt4-2 eth-rt5-1| |eth-rt5-2
| | | |
10.0.2.0/24| |10.0.3.0/24 10.0.4.0/24| |10.0.5.0/24
| | | |
eth-rt2-1| |eth-rt2-2 eth-rt3-1| |eth-rt3-2
+---------+ +---------+
| | | |
| RT4 | 10.0.6.0/24 | RT5 |
| 4.4.4.4 +---------------------+ 5.5.5.5 |
| |eth-rt5 eth-rt4| |
+---------+ +---------+
eth-rt6| |eth-rt6
| |
10.0.7.0/24| |10.0.8.0/24
| +---------+ |
| | | |
| | RT6 | |
+----------+ 6.6.6.6 +-----------+
eth-rt4| |eth-rt5
+---------+
"""
import os
import sys
import pytest
import json
import re
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
# Required to instantiate the topology builder class.
pytestmark = [pytest.mark.isisd]
def build_topo(tgen):
"Build function"
#
# Define FRR Routers
#
for router in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
tgen.add_router(router)
#
# Define connections
#
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["rt1"], nodeif="eth-sw1")
switch.add_link(tgen.gears["rt2"], nodeif="eth-sw1")
switch.add_link(tgen.gears["rt3"], nodeif="eth-sw1")
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["rt2"], nodeif="eth-rt4-1")
switch.add_link(tgen.gears["rt4"], nodeif="eth-rt2-1")
switch = tgen.add_switch("s3")
switch.add_link(tgen.gears["rt2"], nodeif="eth-rt4-2")
switch.add_link(tgen.gears["rt4"], nodeif="eth-rt2-2")
switch = tgen.add_switch("s4")
switch.add_link(tgen.gears["rt3"], nodeif="eth-rt5-1")
switch.add_link(tgen.gears["rt5"], nodeif="eth-rt3-1")
switch = tgen.add_switch("s5")
switch.add_link(tgen.gears["rt3"], nodeif="eth-rt5-2")
switch.add_link(tgen.gears["rt5"], nodeif="eth-rt3-2")
switch = tgen.add_switch("s6")
switch.add_link(tgen.gears["rt4"], nodeif="eth-rt5")
switch.add_link(tgen.gears["rt5"], nodeif="eth-rt4")
switch = tgen.add_switch("s7")
switch.add_link(tgen.gears["rt4"], nodeif="eth-rt6")
switch.add_link(tgen.gears["rt6"], nodeif="eth-rt4")
switch = tgen.add_switch("s8")
switch.add_link(tgen.gears["rt5"], nodeif="eth-rt6")
switch.add_link(tgen.gears["rt6"], nodeif="eth-rt5")
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))
)
router.load_config(
TopoRouter.RD_ISIS, os.path.join(CWD, "{}/isisd.conf".format(rname))
)
tgen.start_router()
def teardown_module(mod):
"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. Wait at most 60 seconds.
test_func = partial(topotest.router_json_cmp, tgen.gears[rname], command, expected)
_, diff = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
assertmsg = '"{}" JSON output mismatches the expected result'.format(rname)
assert diff is None, assertmsg
#
# Step 1
#
# Test initial network convergence
#
def test_isis_adjacencies_step1():
logger.info("Test (step 1): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step1/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step1():
logger.info("Test (step 1): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step1/show_ip_route.ref"
)
def test_rib_ipv6_step1():
logger.info("Test (step 1): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step1/show_ipv6_route.ref"
)
def test_mpls_lib_step1():
logger.info("Test (step 1): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step1/show_mpls_table.ref"
)
#
# Step 2
#
# Action(s):
# -Disable IS-IS on the eth-rt5 interface on rt4
#
# Expected changes:
# -rt4 should uninstall the Adj-SIDs pointing to rt5
# -rt5 should uninstall the Adj-SIDs pointing to rt4
# -rt2 should reinstall rt5's Prefix-SIDs (2 nexthops deleted)
# -rt3 should reinstall rt4's Prefix-SIDs (2 nexthops deleted)
# -rt4 should reinstall rt3's Prefix-SIDs (1 nexthop deleted)
# -rt4 should reinstall rt5's Prefix-SIDs (1 nexthop changed)
# -rt5 should reinstall rt2's Prefix-SIDs (1 nexthop deleted)
# -rt5 should reinstall rt4's Prefix-SIDs (1 nexthop changed)
#
def test_isis_adjacencies_step2():
logger.info("Test (step 2): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Disabling IS-IS on the eth-rt5 interface on rt4")
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "no ip router isis 1"'
)
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "no ipv6 router isis 1"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step2/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step2():
logger.info("Test (step 2): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step2/show_ip_route.ref"
)
def test_rib_ipv6_step2():
logger.info("Test (step 2): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step2/show_ipv6_route.ref"
)
def test_mpls_lib_step2():
logger.info("Test (step 2): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step2/show_mpls_table.ref"
)
#
# Step 3
#
# Action(s):
# -Shut down the eth-rt4 interface on rt6
# -Shut down the eth-rt5 interface on rt6
#
# Expected changes:
# -All routers should uninstall rt6's Prefix-SIDs
# -rt4 and rt5 should uninstall the Adj-SIDs pointing to rt6
# -rt4 should reconverge rt5's Prefix-SIDs through rt2 using ECMP
# -rt5 should reconverge rt4's Prefix-SIDs through rt3 using ECMP
# -rt6 should uninstall all its IS-IS routes, Prefix-SIDs and Adj-SIDs
#
def test_isis_adjacencies_step3():
logger.info("Test (step 3): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Shutting down the eth-rt4 interface on rt6")
tgen.net["rt6"].cmd('vtysh -c "conf t" -c "interface eth-rt4" -c "shutdown"')
logger.info("Shutting down the eth-rt5 interface on rt6")
tgen.net["rt6"].cmd('vtysh -c "conf t" -c "interface eth-rt5" -c "shutdown"')
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step3/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step3():
logger.info("Test (step 3): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step3/show_ip_route.ref"
)
def test_rib_ipv6_step3():
logger.info("Test (step 3): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step3/show_ipv6_route.ref"
)
def test_mpls_lib_step3():
logger.info("Test (step 3): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step3/show_mpls_table.ref"
)
#
# Step 4
#
# Action(s):
# -Bring up the eth-rt4 interface on rt6
# -Bring up the eth-rt5 interface on rt6
# -Change rt6's SRGB
#
# Expected changes:
# -All routers should install rt6's Prefix-SIDs
# -rt4 and rt5 should install Adj-SIDs for rt6
# -rt4 should reconverge rt5's Prefix-SIDs through rt6 using the new SRGB
# -rt5 should reconverge rt4's Prefix-SIDs through rt6 using the new SRGB
# -rt6 should reinstall all IS-IS routes and Prefix-SIDs from the network, and Adj-SIDs for rt4 and rt5
#
def test_isis_adjacencies_step4():
logger.info("Test (step 4): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Bringing up the eth-rt4 interface on rt6")
tgen.net["rt6"].cmd('vtysh -c "conf t" -c "interface eth-rt4" -c "no shutdown"')
logger.info("Bringing up the eth-rt5 interface on rt6")
tgen.net["rt6"].cmd('vtysh -c "conf t" -c "interface eth-rt5" -c "no shutdown"')
logger.info("Changing rt6's SRGB")
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing global-block 18000 25999"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step4/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step4():
logger.info("Test (step 4): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step4/show_ip_route.ref"
)
def test_rib_ipv6_step4():
logger.info("Test (step 4): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step4/show_ipv6_route.ref"
)
def test_mpls_lib_step4():
logger.info("Test (step 4): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step4/show_mpls_table.ref"
)
#
# Step 5
#
# Action(s):
# -Disable SR on rt6
#
# Expected changes:
# -All routers should uninstall rt6's Prefix-SIDs
# -rt4 should uninstall rt5's Prefix-SIDs since the nexthop router hasn't SR enabled anymore
# -rt5 should uninstall rt4's Prefix-SIDs since the nexthop router hasn't SR enabled anymore
# -rt6 should uninstall all Prefix-SIDs from the network, and the Adj-SIDs for rt4 and rt5
#
def test_isis_adjacencies_step5():
logger.info("Test (step 5): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Disabling SR on rt6")
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "no segment-routing on"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step5/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step5():
logger.info("Test (step 5): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step5/show_ip_route.ref"
)
def test_rib_ipv6_step5():
logger.info("Test (step 5): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step5/show_ipv6_route.ref"
)
def test_mpls_lib_step5():
logger.info("Test (step 5): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step5/show_mpls_table.ref"
)
#
# Step 6
#
# Action(s):
# -Enable SR on rt6
#
# Expected changes:
# -All routers should install rt6's Prefix-SIDs
# -rt4 should install rt5's Prefix-SIDs through rt6
# -rt5 should install rt4's Prefix-SIDs through rt6
# -rt6 should install all Prefix-SIDs from the network, and Adj-SIDs for rt4 and rt5
#
def test_isis_adjacencies_step6():
logger.info("Test (step 6): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Enabling SR on rt6")
tgen.net["rt6"].cmd('vtysh -c "conf t" -c "router isis 1" -c "segment-routing on"')
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step6/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step6():
logger.info("Test (step 6): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step6/show_ip_route.ref"
)
def test_rib_ipv6_step6():
logger.info("Test (step 6): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step6/show_ipv6_route.ref"
)
def test_mpls_lib_step6():
logger.info("Test (step 6): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step6/show_mpls_table.ref"
)
#
# Step 7
#
# Action(s):
# -Delete rt1's Prefix-SIDs
#
# Expected changes:
# -All routers should uninstall rt1's Prefix-SIDs
#
def test_isis_adjacencies_step7():
logger.info("Test (step 7): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Deleting rt1's Prefix-SIDs")
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "no segment-routing prefix 1.1.1.1/32 index 10"'
)
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "no segment-routing prefix 2001:db8:1000::1/128 index 11"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step7/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step7():
logger.info("Test (step 7): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step7/show_ip_route.ref"
)
def test_rib_ipv6_step7():
logger.info("Test (step 7): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step7/show_ipv6_route.ref"
)
def test_mpls_lib_step7():
logger.info("Test (step 7): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step7/show_mpls_table.ref"
)
#
# Step 8
#
# Action(s):
# -Re-add rt1's Prefix-SIDs
#
# Expected changes:
# -All routers should install rt1's Prefix-SIDs
#
def test_isis_adjacencies_step8():
logger.info("Test (step 8): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Re-adding rt1's Prefix-SIDs")
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 1.1.1.1/32 index 10"'
)
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 2001:db8:1000::1/128 index 11"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step8/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step8():
logger.info("Test (step 8): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step8/show_ip_route.ref"
)
def test_rib_ipv6_step8():
logger.info("Test (step 8): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step8/show_ipv6_route.ref"
)
def test_mpls_lib_step8():
logger.info("Test (step 8): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step8/show_mpls_table.ref"
)
#
# Step 9
#
# Action(s):
# -Change rt1's Prefix-SIDs to use the no-php option
# -Change rt6's Prefix-SIDs to stop using the explicit-null option
#
# Expected changes:
# -rt2 and rt3 should reinstall rt1's Prefix-SIDs accordingly
# -rt4 and rt5 should reinstall rt6's Prefix-SIDs accordingly
#
def test_isis_adjacencies_step9():
logger.info("Test (step 9): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Changing rt1's Prefix-SIDs to use the no-php option")
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 1.1.1.1/32 index 10 no-php-flag"'
)
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 2001:db8:1000::1/128 index 11 no-php-flag"'
)
logger.info("Change rt6's Prefix-SIDs to stop using the explicit-null option")
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 6.6.6.6/32 index 60"'
)
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 2001:db8:1000::6/128 index 61"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step9/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step9():
logger.info("Test (step 9): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step9/show_ip_route.ref"
)
def test_rib_ipv6_step9():
logger.info("Test (step 9): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step9/show_ipv6_route.ref"
)
def test_mpls_lib_step9():
logger.info("Test (step 9): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step9/show_mpls_table.ref"
)
#
# Step 10
#
# Action(s):
# -Remove the IPv4 address from rt4's eth-rt2-1 interface
#
# Expected changes:
# -rt2 should uninstall the IPv4 Adj-SIDs attached to the eth-rt4-1 interface
# -rt2 should reinstall all IPv4 Prefix-SIDs whose nexthop router is rt4 (ECMP shouldn't be used anymore)
# -rt4 should reinstall all IPv4 Prefix-SIDs whose nexthop router is rt2 (ECMP shouldn't be used anymore)
#
def test_isis_adjacencies_step10():
logger.info("Test (step 10): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Removing the IPv4 address from rt4's eth-rt2-1 interface")
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt2-1" -c "no ip address 10.0.2.4/24"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step10/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step10():
logger.info("Test (step 10): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step10/show_ip_route.ref"
)
def test_rib_ipv6_step10():
logger.info("Test (step 10): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step10/show_ipv6_route.ref"
)
def test_mpls_lib_step10():
logger.info("Test (step 10): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step10/show_mpls_table.ref"
)
#
# Step 11
#
# Action(s):
# -Enter invalid SR configuration
#
# Expected changes:
# -All commands should be rejected
#
def test_isis_invalid_config_step11():
logger.info("Test (step 11): check if invalid configuration is rejected")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Entering invalid Segment Routing configuration...")
ret = tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 1.1.1.1/32 index 10000"'
)
assert (
re.search("Configuration failed", ret) is not None
), "Invalid SR configuration wasn't rejected"
ret = tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing global-block 16000 14999"'
)
assert (
re.search("Configuration failed", ret) is not None
), "Invalid SR configuration wasn't rejected"
ret = tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing global-block 16000 16001"'
)
assert (
re.search("Configuration failed", ret) is not None
), "Invalid SR configuration wasn't rejected"
#
# Step 12
#
# Action(s):
# -Restore the original network setup
#
# Expected changes:
# -All routes, Prefix-SIDs and Adj-SIDs should be the same as they were after the initial network convergence (step 1)
#
def test_isis_adjacencies_step12():
logger.info("Test (step 12): check IS-IS adjacencies")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info("Restoring the original network setup")
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "ip router isis 1"'
)
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "ipv6 router isis 1"'
)
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "isis network point-to-point"'
)
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt5" -c "isis hello-interval 1" -c "isis hello-multiplier 10"'
)
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing global-block 16000 23999"'
)
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 1.1.1.1/32 index 10"'
)
tgen.net["rt1"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 2001:db8:1000::1/128 index 11"'
)
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 6.6.6.6/32 index 60 explicit-null"'
)
tgen.net["rt6"].cmd(
'vtysh -c "conf t" -c "router isis 1" -c "segment-routing prefix 2001:db8:1000::6/128 index 61 explicit-null"'
)
tgen.net["rt4"].cmd(
'vtysh -c "conf t" -c "interface eth-rt2-1" -c "ip address 10.0.2.4/24"'
)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname,
"show yang operational-data /frr-interface:lib isisd",
"step1/show_yang_interface_isis_adjacencies.ref",
)
def test_rib_ipv4_step12():
logger.info("Test (step 12): verify IPv4 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ip route isis json", "step1/show_ip_route.ref"
)
def test_rib_ipv6_step12():
logger.info("Test (step 12): verify IPv6 RIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show ipv6 route isis json", "step1/show_ipv6_route.ref"
)
def test_mpls_lib_step12():
logger.info("Test (step 12): verify MPLS LIB")
tgen = get_topogen()
# Skip if previous fatal error condition is raised
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
for rname in ["rt1", "rt2", "rt3", "rt4", "rt5", "rt6"]:
router_compare_json_output(
rname, "show mpls table json", "step1/show_mpls_table.ref"
)
# Memory leak test template
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))
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