Mirror/frr
0
0
Fork 1
mirror of https://github.com/FRRouting/frr.git synced 2025-04-30 13:37:17 +02:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity
frr/tests/topotests/bgp-basic-functionality-topo1/test_bgp_basic_functionality.py
whitespace 701a01920e *: reformat python files 
We are now using black.

Signed-off-by: Quentin Young <qlyoung@nvidia.com>
2020-10-07 17:22:26 -04:00

1154 lines
38 KiB
Python
Raw Blame History

#!/usr/bin/env python
#
# Copyright (c) 2019 by VMware, Inc. ("VMware")
# Used Copyright (c) 2018 by Network Device Education Foundation,
# Inc. ("NetDEF") in this file.
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND VMWARE DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
"""
Following tests are covered to test BGP basic functionality:
Test steps
- Create topology (setup module)
Creating 4 routers topology, r1, r2, r3 are in IBGP and
r3, r4 are in EBGP
- Bring up topology
- Verify for bgp to converge
- Modify/Delete and verify router-id
- Modify and verify bgp timers
- Create and verify static routes
- Modify and verify admin distance for existing static routes
- Test advertise network using network command
- Verify clear bgp
- Test bgp convergence with loopback interface
- Test advertise network using network command
- Verify routes not installed in zebra when /32 routes received
with loopback BGP session subnet
"""
import os
import sys
import json
import time
import pytest
from copy import deepcopy
# Save the Current Working Directory to find configuration files.
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
sys.path.append(os.path.join(CWD, "../lib/"))
# Required to instantiate the topology builder class.
# pylint: disable=C0413
# Import topogen and topotest helpers
from lib.topogen import Topogen, get_topogen
from mininet.topo import Topo
from lib.common_config import (
step,
start_topology,
write_test_header,
write_test_footer,
reset_config_on_routers,
create_static_routes,
verify_rib,
verify_admin_distance_for_static_routes,
check_address_types,
apply_raw_config,
addKernelRoute,
verify_fib_routes,
create_prefix_lists,
create_route_maps,
verify_bgp_community,
required_linux_kernel_version,
)
from lib.topolog import logger
from lib.bgp import (
verify_bgp_convergence,
create_router_bgp,
verify_router_id,
modify_as_number,
verify_as_numbers,
clear_bgp_and_verify,
verify_bgp_timers_and_functionality,
verify_bgp_rib,
)
from lib.topojson import build_topo_from_json, build_config_from_json
# Reading the data from JSON File for topology creation
jsonFile = "{}/bgp_basic_functionality.json".format(CWD)
try:
with open(jsonFile, "r") as topoJson:
topo = json.load(topoJson)
except IOError:
assert False, "Could not read file {}".format(jsonFile)
# Global Variable
KEEPALIVETIMER = 2
HOLDDOWNTIMER = 6
r1_ipv4_loopback = "1.0.1.0/24"
r2_ipv4_loopback = "1.0.2.0/24"
r3_ipv4_loopback = "1.0.3.0/24"
r4_ipv4_loopback = "1.0.4.0/24"
r1_ipv6_loopback = "2001:db8:f::1:0/120"
r2_ipv6_loopback = "2001:db8:f::2:0/120"
r3_ipv6_loopback = "2001:db8:f::3:0/120"
r4_ipv6_loopback = "2001:db8:f::4:0/120"
NETWORK = {
"ipv4": ["100.1.1.1/32", "100.1.1.2/32"],
"ipv6": ["100::1/128", "100::2/128"],
}
class CreateTopo(Topo):
"""
Test BasicTopo - topology 1
* `Topo`: Topology object
"""
def build(self, *_args, **_opts):
"""Build function"""
tgen = get_topogen(self)
# Building topology from json file
build_topo_from_json(tgen, topo)
def setup_module(mod):
"""
Sets up the pytest environment
* `mod`: module name
"""
# Required linux kernel version for this suite to run.
result = required_linux_kernel_version("4.15")
if result is not True:
pytest.skip("Kernel requirements are not met")
testsuite_run_time = time.asctime(time.localtime(time.time()))
logger.info("Testsuite start time: {}".format(testsuite_run_time))
logger.info("=" * 40)
logger.info("Running setup_module to create topology")
# This function initiates the topology build with Topogen...
tgen = Topogen(CreateTopo, mod.__name__)
# ... and here it calls Mininet initialization functions.
# Starting topology, create tmp files which are loaded to routers
# to start deamons and then start routers
start_topology(tgen)
# Creating configuration from JSON
build_config_from_json(tgen, topo)
global ADDR_TYPES
global BGP_CONVERGENCE
ADDR_TYPES = check_address_types()
BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo)
assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error: {}".format(
BGP_CONVERGENCE
)
logger.info("Running setup_module() done")
def teardown_module():
"""Teardown the pytest environment"""
logger.info("Running teardown_module to delete topology")
tgen = get_topogen()
# Stop toplogy and Remove tmp files
tgen.stop_topology()
logger.info(
"Testsuite end time: {}".format(time.asctime(time.localtime(time.time())))
)
logger.info("=" * 40)
#####################################################
#
# Testcases
#
#####################################################
def test_modify_and_delete_router_id(request):
""" Test to modify, delete and verify router-id. """
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Modify router id
input_dict = {
"r1": {"bgp": {"router_id": "12.12.12.12"}},
"r2": {"bgp": {"router_id": "22.22.22.22"}},
"r3": {"bgp": {"router_id": "33.33.33.33"}},
}
result = create_router_bgp(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Verifying router id once modified
result = verify_router_id(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Delete router id
input_dict = {
"r1": {"bgp": {"del_router_id": True}},
"r2": {"bgp": {"del_router_id": True}},
"r3": {"bgp": {"del_router_id": True}},
}
result = create_router_bgp(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Verifying router id once deleted
# Once router-id is deleted, highest interface ip should become
# router-id
result = verify_router_id(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_bgp_config_with_4byte_as_number(request):
"""
Configure BGP with 4 byte ASN and verify it works fine
"""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
input_dict = {
"r1": {"bgp": {"local_as": 131079}},
"r2": {"bgp": {"local_as": 131079}},
"r3": {"bgp": {"local_as": 131079}},
"r4": {"bgp": {"local_as": 131080}},
}
result = modify_as_number(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
result = verify_as_numbers(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_BGP_config_with_invalid_ASN_p2(request):
"""
Configure BGP with invalid ASN(ex - 0, reserved ASN) and verify test case
ended up with error
"""
tgen = get_topogen()
global BGP_CONVERGENCE
if BGP_CONVERGENCE != True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Api call to modify AS number
input_dict = {
"r1": {"bgp": {"local_as": 0,}},
"r2": {"bgp": {"local_as": 0,}},
"r3": {"bgp": {"local_as": 0,}},
"r4": {"bgp": {"local_as": 64000,}},
}
result = modify_as_number(tgen, topo, input_dict)
try:
assert result is True
except AssertionError:
logger.info("Expected behaviour: {}".format(result))
logger.info("BGP config is not created because of invalid ASNs")
write_test_footer(tc_name)
def test_BGP_config_with_2byteAS_and_4byteAS_number_p1(request):
"""
Configure BGP with 4 byte and 2 byte ASN and verify BGP is converged
"""
tgen = get_topogen()
global BGP_CONVERGENCE
if BGP_CONVERGENCE != True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Api call to modify AS number
input_dict = {
"r1": {"bgp": {"local_as": 131079}},
"r2": {"bgp": {"local_as": 131079}},
"r3": {"bgp": {"local_as": 131079}},
"r4": {"bgp": {"local_as": 111}},
}
result = modify_as_number(tgen, topo, input_dict)
if result != True:
assert False, "Testcase " + tc_name + " :Failed \n Error: {}".format(result)
result = verify_as_numbers(tgen, topo, input_dict)
if result != True:
assert False, "Testcase " + tc_name + " :Failed \n Error: {}".format(result)
# Api call verify whether BGP is converged
result = verify_bgp_convergence(tgen, topo)
if result != True:
assert False, "Testcase " + tc_name + " :Failed \n Error: {}".format(result)
write_test_footer(tc_name)
def test_bgp_timers_functionality(request):
"""
Test to modify bgp timers and verify timers functionality.
"""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
# Api call to modfiy BGP timerse
input_dict = {
"r1": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {
"neighbor": {
"r2": {
"dest_link": {
"r1": {
"keepalivetimer": KEEPALIVETIMER,
"holddowntimer": HOLDDOWNTIMER,
}
}
}
}
}
}
}
}
}
}
result = create_router_bgp(tgen, topo, deepcopy(input_dict))
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Api call to clear bgp, so timer modification would take place
clear_bgp_and_verify(tgen, topo, "r1")
# Verifying bgp timers functionality
result = verify_bgp_timers_and_functionality(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_static_routes(request):
""" Test to create and verify static routes. """
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
# Api call to create static routes
input_dict = {
"r1": {
"static_routes": [
{
"network": "10.0.20.1/32",
"no_of_ip": 9,
"admin_distance": 100,
"next_hop": "10.0.0.2",
}
]
}
}
result = create_static_routes(tgen, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Api call to redistribute static routes
input_dict_1 = {
"r1": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {
"redistribute": [
{"redist_type": "static"},
{"redist_type": "connected"},
]
}
}
}
}
}
}
result = create_router_bgp(tgen, topo, input_dict_1)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Verifying RIB routes
dut = "r3"
protocol = "bgp"
next_hop = ["10.0.0.2", "10.0.0.5"]
result = verify_rib(
tgen, "ipv4", dut, input_dict, next_hop=next_hop, protocol=protocol
)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_admin_distance_for_existing_static_routes(request):
""" Test to modify and verify admin distance for existing static routes."""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
input_dict = {
"r1": {
"static_routes": [
{
"network": "10.0.20.1/32",
"admin_distance": 10,
"next_hop": "10.0.0.2",
}
]
}
}
result = create_static_routes(tgen, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Verifying admin distance once modified
result = verify_admin_distance_for_static_routes(tgen, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_advertise_network_using_network_command(request):
""" Test advertise networks using network command."""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
# Api call to advertise networks
input_dict = {
"r1": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {
"advertise_networks": [
{"network": "20.0.0.0/32", "no_of_network": 10},
{"network": "30.0.0.0/32", "no_of_network": 10},
]
}
}
}
}
}
}
result = create_router_bgp(tgen, topo, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Verifying RIB routes
dut = "r2"
protocol = "bgp"
result = verify_rib(tgen, "ipv4", dut, input_dict, protocol=protocol)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_clear_bgp_and_verify(request):
"""
Created few static routes and verified all routes are learned via BGP
cleared BGP and verified all routes are intact
"""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
# clear ip bgp
result = clear_bgp_and_verify(tgen, topo, "r1")
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_BGP_attributes_with_vrf_default_keyword_p0(request):
"""
TC_9:
Verify BGP functionality for default vrf with
"vrf default" keyword.
"""
tc_name = request.node.name
write_test_header(tc_name)
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# reset_config_on_routers(tgen)
step("Configure static routes and redistribute in BGP on R3")
for addr_type in ADDR_TYPES:
input_dict = {
"r3": {
"static_routes": [
{
"network": NETWORK[addr_type][0],
"no_of_ip": 4,
"next_hop": "Null0",
}
]
}
}
result = create_static_routes(tgen, input_dict)
assert result is True, "Testcase {} : Failed \n Error: {}".format(
tc_name, result
)
input_dict_2 = {
"r3": {
"bgp": {
"address_family": {
"ipv4": {"unicast": {"redistribute": [{"redist_type": "static"}]}},
"ipv6": {"unicast": {"redistribute": [{"redist_type": "static"}]}},
}
}
}
}
result = create_router_bgp(tgen, topo, input_dict_2)
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
step(
"Create a route-map to match a specific prefix and modify"
"BGP attributes for matched prefix"
)
input_dict_2 = {
"r3": {
"prefix_lists": {
"ipv4": {
"ABC": [
{
"seqid": 10,
"action": "permit",
"network": NETWORK["ipv4"][0],
}
]
},
"ipv6": {
"XYZ": [
{
"seqid": 100,
"action": "permit",
"network": NETWORK["ipv6"][0],
}
]
},
}
}
}
result = create_prefix_lists(tgen, input_dict_2)
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
for addr_type in ADDR_TYPES:
if addr_type == "ipv4":
pf_list = "ABC"
else:
pf_list = "XYZ"
input_dict_6 = {
"r3": {
"route_maps": {
"BGP_ATTR_{}".format(addr_type): [
{
"action": "permit",
"seq_id": 10,
"match": {addr_type: {"prefix_lists": pf_list}},
"set": {
"aspath": {"as_num": 500, "as_action": "prepend"},
"localpref": 500,
"origin": "egp",
"community": {"num": "500:500", "action": "additive"},
"large_community": {
"num": "500:500:500",
"action": "additive",
},
},
},
{"action": "permit", "seq_id": 20},
]
},
"BGP_ATTR_{}".format(addr_type): [
{
"action": "permit",
"seq_id": 100,
"match": {addr_type: {"prefix_lists": pf_list}},
"set": {
"aspath": {"as_num": 500, "as_action": "prepend"},
"localpref": 500,
"origin": "egp",
"community": {"num": "500:500", "action": "additive"},
"large_community": {
"num": "500:500:500",
"action": "additive",
},
},
},
{"action": "permit", "seq_id": 200},
],
}
}
result = create_route_maps(tgen, input_dict_6)
assert result is True, "Testcase {} : Failed \n Error: {}".format(
tc_name, result
)
step("Apply the route-map on R3 in outbound direction for peer R4")
input_dict_7 = {
"r3": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {
"neighbor": {
"r4": {
"dest_link": {
"r3": {
"route_maps": [
{
"name": "BGP_ATTR_ipv4",
"direction": "out",
}
]
}
}
}
}
}
},
"ipv6": {
"unicast": {
"neighbor": {
"r4": {
"dest_link": {
"r3": {
"route_maps": [
{
"name": "BGP_ATTR_ipv6",
"direction": "out",
}
]
}
}
}
}
}
},
}
}
}
}
result = create_router_bgp(tgen, topo, input_dict_7)
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
step(
"verify modified attributes for specific prefix with 'vrf default'"
"keyword on R4"
)
for addr_type in ADDR_TYPES:
dut = "r4"
input_dict = {
"r3": {
"static_routes": [
{
"network": NETWORK[addr_type][0],
"vrf": "default",
"largeCommunity": "500:500:500",
}
]
}
}
result = verify_bgp_rib(tgen, addr_type, dut, input_dict)
assert result is True, "Testcase : Failed \n Error: {}".format(tc_name, result)
result = verify_rib(tgen, addr_type, dut, input_dict)
assert result is True, "Testcase : Failed \n Error: {}".format(tc_name, result)
for addr_type in ADDR_TYPES:
dut = "r4"
input_dict = {
"r3": {
"static_routes": [
{
"network": NETWORK[addr_type][0],
"vrf": "default",
"community": "500:500",
}
]
}
}
result = verify_bgp_rib(tgen, addr_type, dut, input_dict)
assert result is True, "Testcase : Failed \n Error: {}".format(tc_name, result)
result = verify_rib(tgen, addr_type, dut, input_dict)
assert result is True, "Testcase : Failed \n Error: {}".format(tc_name, result)
input_dict_4 = {"largeCommunity": "500:500:500", "community": "500:500"}
result = verify_bgp_community(
tgen, addr_type, dut, [NETWORK[addr_type][0]], input_dict_4
)
assert result is True, "Test case {} : Should fail \n Error: {}".format(
tc_name, result
)
write_test_footer(tc_name)
def test_bgp_with_loopback_interface(request):
"""
Test BGP with loopback interface
Adding keys:value pair "dest_link": "lo" and "source_link": "lo"
peer dict of input json file for all router's creating config using
loopback interface. Once BGP neighboship is up then verifying BGP
convergence
"""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
for routerN in sorted(topo["routers"].keys()):
for bgp_neighbor in topo["routers"][routerN]["bgp"]["address_family"]["ipv4"][
"unicast"
]["neighbor"].keys():
# Adding ['source_link'] = 'lo' key:value pair
topo["routers"][routerN]["bgp"]["address_family"]["ipv4"]["unicast"][
"neighbor"
][bgp_neighbor]["dest_link"] = {"lo": {"source_link": "lo",}}
# Creating configuration from JSON
build_config_from_json(tgen, topo)
input_dict = {
"r1": {
"static_routes": [
{"network": "1.0.2.17/32", "next_hop": "10.0.0.2"},
{"network": "1.0.3.17/32", "next_hop": "10.0.0.6"},
]
},
"r2": {
"static_routes": [
{"network": "1.0.1.17/32", "next_hop": "10.0.0.1"},
{"network": "1.0.3.17/32", "next_hop": "10.0.0.10"},
]
},
"r3": {
"static_routes": [
{"network": "1.0.1.17/32", "next_hop": "10.0.0.5"},
{"network": "1.0.2.17/32", "next_hop": "10.0.0.9"},
{"network": "1.0.4.17/32", "next_hop": "10.0.0.14"},
]
},
"r4": {"static_routes": [{"network": "1.0.3.17/32", "next_hop": "10.0.0.13"}]},
}
result = create_static_routes(tgen, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
# Api call verify whether BGP is converged
result = verify_bgp_convergence(tgen, topo)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
write_test_footer(tc_name)
def test_bgp_with_loopback_with_same_subnet_p1(request):
"""
Verify routes not installed in zebra when /32 routes received
with loopback BGP session subnet
"""
tgen = get_topogen()
if BGP_CONVERGENCE is not True:
pytest.skip("skipped because of BGP Convergence failure")
# test case name
tc_name = request.node.name
write_test_header(tc_name)
# Creating configuration from JSON
reset_config_on_routers(tgen)
step("Delete BGP seesion created initially")
input_dict_r1 = {
"r1": {"bgp": {"delete": True}},
"r2": {"bgp": {"delete": True}},
"r3": {"bgp": {"delete": True}},
"r4": {"bgp": {"delete": True}},
}
result = create_router_bgp(tgen, topo, input_dict_r1)
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
step("Create BGP session over loop address")
topo_modify = deepcopy(topo)
for routerN in sorted(topo["routers"].keys()):
for addr_type in ADDR_TYPES:
for bgp_neighbor in topo_modify["routers"][routerN]["bgp"][
"address_family"
][addr_type]["unicast"]["neighbor"].keys():
# Adding ['source_link'] = 'lo' key:value pair
topo_modify["routers"][routerN]["bgp"]["address_family"][addr_type][
"unicast"
]["neighbor"][bgp_neighbor]["dest_link"] = {
"lo": {"source_link": "lo", "ebgp_multihop": 2}
}
result = create_router_bgp(tgen, topo_modify["routers"])
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
step("Disable IPv6 BGP nbr from ipv4 address family")
raw_config = {
"r1": {
"raw_config": [
"router bgp {}".format(topo["routers"]["r1"]["bgp"]["local_as"]),
"address-family ipv4 unicast",
"no neighbor {} activate".format(
topo["routers"]["r2"]["links"]["lo"]["ipv6"].split("/")[0]
),
"no neighbor {} activate".format(
topo["routers"]["r3"]["links"]["lo"]["ipv6"].split("/")[0]
),
]
},
"r2": {
"raw_config": [
"router bgp {}".format(topo["routers"]["r2"]["bgp"]["local_as"]),
"address-family ipv4 unicast",
"no neighbor {} activate".format(
topo["routers"]["r1"]["links"]["lo"]["ipv6"].split("/")[0]
),
"no neighbor {} activate".format(
topo["routers"]["r3"]["links"]["lo"]["ipv6"].split("/")[0]
),
]
},
"r3": {
"raw_config": [
"router bgp {}".format(topo["routers"]["r3"]["bgp"]["local_as"]),
"address-family ipv4 unicast",
"no neighbor {} activate".format(
topo["routers"]["r1"]["links"]["lo"]["ipv6"].split("/")[0]
),
"no neighbor {} activate".format(
topo["routers"]["r2"]["links"]["lo"]["ipv6"].split("/")[0]
),
"no neighbor {} activate".format(
topo["routers"]["r4"]["links"]["lo"]["ipv6"].split("/")[0]
),
]
},
"r4": {
"raw_config": [
"router bgp {}".format(topo["routers"]["r4"]["bgp"]["local_as"]),
"address-family ipv4 unicast",
"no neighbor {} activate".format(
topo["routers"]["r3"]["links"]["lo"]["ipv6"].split("/")[0]
),
]
},
}
step("Configure kernel routes")
result = apply_raw_config(tgen, raw_config)
assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
r1_ipv4_lo = topo["routers"]["r1"]["links"]["lo"]["ipv4"]
r1_ipv6_lo = topo["routers"]["r1"]["links"]["lo"]["ipv6"]
r2_ipv4_lo = topo["routers"]["r2"]["links"]["lo"]["ipv4"]
r2_ipv6_lo = topo["routers"]["r2"]["links"]["lo"]["ipv6"]
r3_ipv4_lo = topo["routers"]["r3"]["links"]["lo"]["ipv4"]
r3_ipv6_lo = topo["routers"]["r3"]["links"]["lo"]["ipv6"]
r4_ipv4_lo = topo["routers"]["r4"]["links"]["lo"]["ipv4"]
r4_ipv6_lo = topo["routers"]["r4"]["links"]["lo"]["ipv6"]
r1_r2 = topo["routers"]["r1"]["links"]["r2"]["ipv6"].split("/")[0]
r2_r1 = topo["routers"]["r2"]["links"]["r1"]["ipv6"].split("/")[0]
r1_r3 = topo["routers"]["r1"]["links"]["r3"]["ipv6"].split("/")[0]
r3_r1 = topo["routers"]["r3"]["links"]["r1"]["ipv6"].split("/")[0]
r2_r3 = topo["routers"]["r2"]["links"]["r3"]["ipv6"].split("/")[0]
r3_r2 = topo["routers"]["r3"]["links"]["r2"]["ipv6"].split("/")[0]
r3_r4 = topo["routers"]["r3"]["links"]["r4"]["ipv6"].split("/")[0]
r4_r3 = topo["routers"]["r4"]["links"]["r3"]["ipv6"].split("/")[0]
r1_r2_ipv4 = topo["routers"]["r1"]["links"]["r2"]["ipv4"].split("/")[0]
r2_r1_ipv4 = topo["routers"]["r2"]["links"]["r1"]["ipv4"].split("/")[0]
r1_r3_ipv4 = topo["routers"]["r1"]["links"]["r3"]["ipv4"].split("/")[0]
r3_r1_ipv4 = topo["routers"]["r3"]["links"]["r1"]["ipv4"].split("/")[0]
r2_r3_ipv4 = topo["routers"]["r2"]["links"]["r3"]["ipv4"].split("/")[0]
r3_r2_ipv4 = topo["routers"]["r3"]["links"]["r2"]["ipv4"].split("/")[0]
r3_r4_ipv4 = topo["routers"]["r3"]["links"]["r4"]["ipv4"].split("/")[0]
r4_r3_ipv4 = topo["routers"]["r4"]["links"]["r3"]["ipv4"].split("/")[0]
r1_r2_intf = topo["routers"]["r1"]["links"]["r2"]["interface"]
r2_r1_intf = topo["routers"]["r2"]["links"]["r1"]["interface"]
r1_r3_intf = topo["routers"]["r1"]["links"]["r3"]["interface"]
r3_r1_intf = topo["routers"]["r3"]["links"]["r1"]["interface"]
r2_r3_intf = topo["routers"]["r2"]["links"]["r3"]["interface"]
r3_r2_intf = topo["routers"]["r3"]["links"]["r2"]["interface"]
r3_r4_intf = topo["routers"]["r3"]["links"]["r4"]["interface"]
r4_r3_intf = topo["routers"]["r4"]["links"]["r3"]["interface"]
ipv4_list = [
("r1", r1_r2_intf, r2_ipv4_loopback),
("r1", r1_r3_intf, r3_ipv4_loopback),
("r2", r2_r1_intf, r1_ipv4_loopback),
("r2", r2_r3_intf, r3_ipv4_loopback),
("r3", r3_r1_intf, r1_ipv4_loopback),
("r3", r3_r2_intf, r2_ipv4_loopback),
("r3", r3_r4_intf, r4_ipv4_loopback),
("r4", r4_r3_intf, r3_ipv4_loopback),
]
ipv6_list = [
("r1", r1_r2_intf, r2_ipv6_loopback, r2_r1),
("r1", r1_r3_intf, r3_ipv6_loopback, r3_r1),
("r2", r2_r1_intf, r1_ipv6_loopback, r1_r2),
("r2", r2_r3_intf, r3_ipv6_loopback, r3_r2),
("r3", r3_r1_intf, r1_ipv6_loopback, r1_r3),
("r3", r3_r2_intf, r2_ipv6_loopback, r2_r3),
("r3", r3_r4_intf, r4_ipv6_loopback, r4_r3),
("r4", r4_r3_intf, r3_ipv6_loopback, r3_r4),
]
for dut, intf, loop_addr in ipv4_list:
result = addKernelRoute(tgen, dut, intf, loop_addr)
assert result is True, "Testcase {}:Failed \n Error: {}".format(tc_name, result)
for dut, intf, loop_addr, next_hop in ipv6_list:
result = addKernelRoute(tgen, dut, intf, loop_addr, next_hop)
assert result is True, "Testcase {}:Failed \n Error: {}".format(tc_name, result)
step("Configure static routes")
input_dict = {
"r1": {
"static_routes": [
{"network": r2_ipv4_loopback, "next_hop": r2_r1_ipv4},
{"network": r3_ipv4_loopback, "next_hop": r3_r1_ipv4},
{"network": r2_ipv6_loopback, "next_hop": r2_r1},
{"network": r3_ipv6_loopback, "next_hop": r3_r1},
]
},
"r2": {
"static_routes": [
{"network": r1_ipv4_loopback, "next_hop": r1_r2_ipv4},
{"network": r3_ipv4_loopback, "next_hop": r3_r2_ipv4},
{"network": r1_ipv6_loopback, "next_hop": r1_r2},
{"network": r3_ipv6_loopback, "next_hop": r3_r2},
]
},
"r3": {
"static_routes": [
{"network": r1_ipv4_loopback, "next_hop": r1_r3_ipv4},
{"network": r2_ipv4_loopback, "next_hop": r2_r3_ipv4},
{"network": r4_ipv4_loopback, "next_hop": r4_r3_ipv4},
{"network": r1_ipv6_loopback, "next_hop": r1_r3},
{"network": r2_ipv6_loopback, "next_hop": r2_r3},
{"network": r4_ipv6_loopback, "next_hop": r4_r3},
]
},
"r4": {
"static_routes": [
{"network": r3_ipv4_loopback, "next_hop": r3_r4_ipv4},
{"network": r3_ipv6_loopback, "next_hop": r3_r4},
]
},
}
result = create_static_routes(tgen, input_dict)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
step("Verify BGP session convergence")
result = verify_bgp_convergence(tgen, topo_modify)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
step("Configure redistribute connected on R2 and R4")
input_dict_1 = {
"r2": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {"redistribute": [{"redist_type": "connected"}]}
},
"ipv6": {
"unicast": {"redistribute": [{"redist_type": "connected"}]}
},
}
}
},
"r4": {
"bgp": {
"address_family": {
"ipv4": {
"unicast": {"redistribute": [{"redist_type": "connected"}]}
},
"ipv6": {
"unicast": {"redistribute": [{"redist_type": "connected"}]}
},
}
}
},
}
result = create_router_bgp(tgen, topo, input_dict_1)
assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
step("Verify Ipv4 and Ipv6 network installed in R1 RIB but not in FIB")
input_dict_r1 = {
"r1": {
"static_routes": [
{"network": "1.0.2.17/32"},
{"network": "2001:db8:f::2:17/128"},
]
}
}
dut = "r1"
protocol = "bgp"
for addr_type in ADDR_TYPES:
result = verify_rib(tgen, addr_type, dut, input_dict_r1, protocol=protocol)
assert result is True, "Testcase {} :Failed \n Error: {}".format(
tc_name, result
)
result = verify_fib_routes(tgen, addr_type, dut, input_dict_r1, expected=False)
assert result is not True, "Testcase {} : Failed \n"
"Expected behavior: routes should not present in fib \n"
"Error: {}".format(tc_name, result)
step("Verify Ipv4 and Ipv6 network installed in r3 RIB but not in FIB")
input_dict_r3 = {
"r3": {
"static_routes": [
{"network": "1.0.4.17/32"},
{"network": "2001:db8:f::4:17/128"},
]
}
}
dut = "r3"
protocol = "bgp"
for addr_type in ADDR_TYPES:
result = verify_rib(
tgen, addr_type, dut, input_dict_r3, protocol=protocol, fib=None
)
assert result is True, "Testcase {} :Failed \n Error: {}".format(
tc_name, result
)
result = verify_fib_routes(tgen, addr_type, dut, input_dict_r1, expected=False)
assert result is not True, "Testcase {} : Failed \n"
"Expected behavior: routes should not present in fib \n"
"Error: {}".format(tc_name, result)
write_test_footer(tc_name)
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
Reference in a new issue View git blame Copy permalink