262 lines
7.4 KiB
Python
262 lines
7.4 KiB
Python
#!/usr/bin/python
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# SPDX-License-Identifier: ISC
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#
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# Copyright (c) 2020 by VMware, Inc. ("VMware")
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# Used Copyright (c) 2018 by Network Device Education Foundation, Inc.
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# ("NetDEF") in this file.
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#
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"""OSPF Basic Functionality Automation."""
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import ipaddress
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from lib.ospf import (
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verify_ospf_neighbor,
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verify_ospf_rib,
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create_router_ospf,
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redistribute_ospf,
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)
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from lib.topojson import build_config_from_json
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from lib.topolog import logger
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from lib.common_config import (
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start_topology,
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write_test_header,
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write_test_footer,
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reset_config_on_routers,
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verify_rib,
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create_static_routes,
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step,
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)
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from lib.topogen import Topogen, get_topogen
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import os
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import sys
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import time
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import pytest
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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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sys.path.append(os.path.join(CWD, "../lib/"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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pytestmark = [pytest.mark.ospfd, pytest.mark.staticd]
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# Global variables
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topo = None
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NETWORK = {
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"ipv4": [
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"11.0.20.1/32",
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"11.0.20.2/32",
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"11.0.20.3/32",
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"11.0.20.4/32",
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"11.0.20.5/32",
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]
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}
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"""
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TOPOOLOGY =
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Please view in a fixed-width font such as Courier.
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+---+ A1 +---+
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+R1 +------------+R2 |
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+-+-+- +--++
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| -- -- |
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| -- A0 -- |
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A0| ---- |
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| ---- | A2
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| -- -- |
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| -- -- |
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+-+-+- +-+-+
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+R0 +-------------+R3 |
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+---+ A3 +---+
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TESTCASES =
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1. OSPF Learning - Verify OSPF can learn different types of LSA and
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processes them.[Edge learning different types of LSAs]
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2. Verify that ospf non back bone area can be configured as NSSA area
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3. Verify that ospf NSSA area DUT is capable receiving & processing
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Type7 N2 route.
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"""
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def setup_module(mod):
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"""
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Sets up the pytest environment
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* `mod`: module name
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"""
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testsuite_run_time = time.asctime(time.localtime(time.time()))
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logger.info("Testsuite start time: {}".format(testsuite_run_time))
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logger.info("=" * 40)
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logger.info("Running setup_module to create topology")
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# This function initiates the topology build with Topogen...
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json_file = "{}/ospf_nssa.json".format(CWD)
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tgen = Topogen(json_file, mod.__name__)
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global topo
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topo = tgen.json_topo
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# ... and here it calls Mininet initialization functions.
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# Starting topology, create tmp files which are loaded to routers
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# to start daemons and then start routers
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start_topology(tgen)
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# Creating configuration from JSON
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build_config_from_json(tgen, topo)
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# Don't run this test if we have any failure.
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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# Api call verify whether OSPF is converged
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ospf_covergence = verify_ospf_neighbor(tgen, topo)
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assert ospf_covergence is True, "setup_module :Failed \n Error {}".format(
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ospf_covergence
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)
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logger.info("Running setup_module() done")
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def teardown_module(mod):
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"""
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Teardown the pytest environment.
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* `mod`: module name
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"""
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logger.info("Running teardown_module to delete topology")
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tgen = get_topogen()
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# Stop toplogy and Remove tmp files
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tgen.stop_topology()
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logger.info(
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"Testsuite end time: {}".format(time.asctime(time.localtime(time.time())))
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)
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logger.info("=" * 40)
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# ##################################
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# Test cases start here.
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# ##################################
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def test_ospf_learning_tc15_p0(request):
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"""Verify OSPF can learn different types of LSA and processes them.
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OSPF Learning : Edge learning different types of LSAs.
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"""
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tc_name = request.node.name
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write_test_header(tc_name)
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tgen = get_topogen()
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# Don't run this test if we have any failure.
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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global topo
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step("Bring up the base config as per the topology")
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step("Configure area 1 as NSSA Area")
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reset_config_on_routers(tgen)
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step("Verify that Type 3 summary LSA is originated for the same Area 0")
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ip = topo["routers"]["r1"]["links"]["r3-link0"]["ipv4"]
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ip_net = str(ipaddress.ip_interface("{}".format(ip)).network)
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dut = "r0"
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input_dict = {
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"r1": {
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"static_routes": [{"network": ip_net, "no_of_ip": 1, "routeType": "N IA"}]
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}
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}
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dut = "r0"
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result = verify_ospf_rib(tgen, dut, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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protocol = "ospf"
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result = verify_rib(tgen, "ipv4", dut, input_dict, protocol=protocol)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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input_dict = {
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"r2": {
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"static_routes": [
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{"network": NETWORK["ipv4"][0], "no_of_ip": 5, "next_hop": "Null0"}
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]
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}
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}
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result = create_static_routes(tgen, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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step("Redistribute static route in R2 ospf.")
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dut = "r2"
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redistribute_ospf(tgen, topo, dut, "static")
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step("Verify that Type 5 LSA is originated by R2.")
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dut = "r0"
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protocol = "ospf"
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result = verify_rib(tgen, "ipv4", dut, input_dict, protocol=protocol)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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step("Verify that R0 receives Type 4 summary LSA.")
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dut = "r0"
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input_dict = {
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"r1": {
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"static_routes": [
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{"network": NETWORK["ipv4"][0], "no_of_ip": 1, "routeType": "N E2"}
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]
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}
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}
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dut = "r1"
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result = verify_ospf_rib(tgen, dut, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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result = verify_rib(tgen, "ipv4", dut, input_dict, protocol=protocol)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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ospf_covergence = verify_ospf_neighbor(tgen, topo)
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assert ospf_covergence is True, "Testcase Failed \n Error {}".format(
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ospf_covergence
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)
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step("Change area 1 as non nssa area (on the fly changing area type on DUT).")
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for rtr in ["r1", "r2", "r3"]:
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input_dict = {
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rtr: {"ospf": {"area": [{"id": "0.0.0.2", "type": "nssa", "delete": True}]}}
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}
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result = create_router_ospf(tgen, topo, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result
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)
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step("Verify that OSPF neighbours are reset after changing area type.")
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step("Verify that ABR R2 originates type 5 LSA in area 1.")
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step("Verify that route is calculated and installed in R1.")
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input_dict = {
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"r1": {
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"static_routes": [
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{"network": NETWORK["ipv4"][0], "no_of_ip": 1, "routeType": "N E2"}
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]
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}
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}
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dut = "r1"
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result = verify_ospf_rib(tgen, dut, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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result = verify_rib(tgen, "ipv4", dut, input_dict, protocol=protocol)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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write_test_footer(tc_name)
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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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