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#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# test_high_ecmp.py
#
# Copyright (c) 2024 by
# Nvidia Corporation
# Donald Sharp
#
"""
test_high_ecmp.py: Testing two routers with 256 interfaces and BGP setup
on it.
"""
import os
import re
import sys
import pytest
import json
pytestmark = [pytest.mark.bgpd]
# 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.
#####################################################
##
## Network Topology Definition
##
#####################################################
def build_topo(tgen):
tgen.add_router("r1")
tgen.add_router("r2")
r1 = tgen.gears["r1"]
r2 = tgen.gears["r2"]
# Let's create 257 interfaces between the two switches
for switch in range(1, 257):
switch = tgen.add_switch("sw{}".format(switch))
switch.add_link(r1)
switch.add_link(r2)
#####################################################
##
## Tests starting
##
#####################################################
def setup_module(module):
"Setup topology"
tgen = Topogen(build_topo, module.__name__)
tgen.start_topology()
# This is a sample of configuration loading.
router_list = tgen.routers()
for rname, router in router_list.items():
router.load_frr_config(
os.path.join(CWD, "{}/frr.conf".format(rname)),
[
(TopoRouter.RD_ZEBRA, "-s 180000000"),
(TopoRouter.RD_BGP, None),
(TopoRouter.RD_SHARP, None),
],
)
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 test_nothing():
"Do Nothing"
tgen = get_topogen()
# Don't run this test if we have any failure.
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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