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ospf: added convergence test for IPv4

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Added a convergence test for OSPF (IPv4) using the new topology
builder Topogen.
This commit is contained in:
Rafael Zalamena 2017-06-19 16:18:25 -03:00 committed by Donald Sharp
parent 812e38a94d
commit 6024e0b5de
16 changed files with 426 additions and 0 deletions
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0
tests/topotests/ospf-topo1/__init__.py Executable file
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tests/topotests/ospf-topo1/r1/ospfd.conf Normal file
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log file /tmp/r1-ospfd.log
!
router ospf
ospf router-id 10.0.255.1
redistribute kernel
redistribute connected
redistribute static
network 10.0.1.0/24 area 0
network 10.0.3.0/24 area 0
!

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tests/topotests/ospf-topo1/r1/ospfroute.txt Normal file
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============ OSPF network routing table ============
N 10.0.1.0/24 [10] area: 0.0.0.0
directly attached to r1-eth0
N 10.0.2.0/24 [20] area: 0.0.0.0
via 10.0.3.3, r1-eth1
N 10.0.3.0/24 [10] area: 0.0.0.0
directly attached to r1-eth1
N 10.0.10.0/24 [20] area: 0.0.0.0
via 10.0.3.1, r1-eth1
N IA 172.16.0.0/24 [20] area: 0.0.0.0
via 10.0.3.1, r1-eth1
N IA 172.16.1.0/24 [30] area: 0.0.0.0
via 10.0.3.1, r1-eth1
============ OSPF router routing table =============
R 10.0.255.2 [10] area: 0.0.0.0, ASBR
via 10.0.3.3, r1-eth1
R 10.0.255.3 [10] area: 0.0.0.0, ABR, ASBR
via 10.0.3.1, r1-eth1
R 10.0.255.4 IA [20] area: 0.0.0.0, ASBR
via 10.0.3.1, r1-eth1
============ OSPF external routing table ===========

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tests/topotests/ospf-topo1/r1/zebra.conf Normal file
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!
hostname r1
log file /tmp/r1-zebra.log
!
interface r1-eth0
ip address 10.0.1.1/24
!
interface r1-eth1
ip address 10.0.3.2/24
!
ip forwarding
!
line vty
!

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tests/topotests/ospf-topo1/r2/ospfd.conf Normal file
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log file /tmp/r1-ospfd.log
!
router ospf
ospf router-id 10.0.255.2
redistribute kernel
redistribute connected
redistribute static
network 10.0.2.0/24 area 0
network 10.0.3.0/24 area 0
!

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tests/topotests/ospf-topo1/r2/ospfroute.txt Normal file
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============ OSPF network routing table ============
N 10.0.1.0/24 [20] area: 0.0.0.0
via 10.0.3.2, r2-eth1
N 10.0.2.0/24 [10] area: 0.0.0.0
directly attached to r2-eth0
N 10.0.3.0/24 [10] area: 0.0.0.0
directly attached to r2-eth1
N 10.0.10.0/24 [20] area: 0.0.0.0
via 10.0.3.1, r2-eth1
N IA 172.16.0.0/24 [20] area: 0.0.0.0
via 10.0.3.1, r2-eth1
N IA 172.16.1.0/24 [30] area: 0.0.0.0
via 10.0.3.1, r2-eth1
============ OSPF router routing table =============
R 10.0.255.1 [10] area: 0.0.0.0, ASBR
via 10.0.3.2, r2-eth1
R 10.0.255.3 [10] area: 0.0.0.0, ABR, ASBR
via 10.0.3.1, r2-eth1
R 10.0.255.4 IA [20] area: 0.0.0.0, ASBR
via 10.0.3.1, r2-eth1
============ OSPF external routing table ===========

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tests/topotests/ospf-topo1/r2/zebra.conf Normal file
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!
hostname r2
log file /tmp/r2-zebra.log
!
interface r2-eth0
ip address 10.0.2.1/24
!
interface r2-eth1
ip address 10.0.3.3/24
!
ip forwarding
!
line vty
!

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tests/topotests/ospf-topo1/r3/ospfd.conf Normal file
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log file /tmp/r3-ospfd.log
!
router ospf
ospf router-id 10.0.255.3
redistribute kernel
redistribute connected
redistribute static
network 10.0.3.0/24 area 0
network 10.0.10.0/24 area 0
network 172.16.0.0/24 area 1
!

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tests/topotests/ospf-topo1/r3/ospfroute.txt Normal file
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============ OSPF network routing table ============
N 10.0.1.0/24 [20] area: 0.0.0.0
via 10.0.3.2, r3-eth0
N 10.0.2.0/24 [20] area: 0.0.0.0
via 10.0.3.3, r3-eth0
N 10.0.3.0/24 [10] area: 0.0.0.0
directly attached to r3-eth0
N 10.0.10.0/24 [10] area: 0.0.0.0
directly attached to r3-eth1
N 172.16.0.0/24 [10] area: 0.0.0.1
directly attached to r3-eth2
N 172.16.1.0/24 [20] area: 0.0.0.1
via 172.16.0.1, r3-eth2
============ OSPF router routing table =============
R 10.0.255.1 [10] area: 0.0.0.0, ASBR
via 10.0.3.2, r3-eth0
R 10.0.255.2 [10] area: 0.0.0.0, ASBR
via 10.0.3.3, r3-eth0
R 10.0.255.4 [10] area: 0.0.0.1, ASBR
via 172.16.0.1, r3-eth2
============ OSPF external routing table ===========

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tests/topotests/ospf-topo1/r3/zebra.conf Normal file
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!
hostname r3
log file /tmp/r3-zebra.log
!
interface r3-eth0
ip address 10.0.3.1/24
!
interface r3-eth1
ip address 10.0.10.1/24
!
interface r3-eth2
ip address 172.16.0.2/24
!
ip forwarding
!
line vty
!

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tests/topotests/ospf-topo1/r4/ospfd.conf Normal file
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log file /tmp/r4-ospfd.log
!
router ospf
ospf router-id 10.0.255.4
redistribute kernel
redistribute connected
redistribute static
network 172.16.0.0/24 area 1
network 172.16.1.0/24 area 1
!

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tests/topotests/ospf-topo1/r4/ospfroute.txt Normal file
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============ OSPF network routing table ============
N IA 10.0.1.0/24 [30] area: 0.0.0.1
via 172.16.0.2, r4-eth0
N IA 10.0.2.0/24 [30] area: 0.0.0.1
via 172.16.0.2, r4-eth0
N IA 10.0.3.0/24 [20] area: 0.0.0.1
via 172.16.0.2, r4-eth0
N IA 10.0.10.0/24 [20] area: 0.0.0.1
via 172.16.0.2, r4-eth0
N 172.16.0.0/24 [10] area: 0.0.0.1
directly attached to r4-eth0
N 172.16.1.0/24 [10] area: 0.0.0.1
directly attached to r4-eth1
============ OSPF router routing table =============
R 10.0.255.1 IA [20] area: 0.0.0.1, ASBR
via 172.16.0.2, r4-eth0
R 10.0.255.2 IA [20] area: 0.0.0.1, ASBR
via 172.16.0.2, r4-eth0
R 10.0.255.3 [10] area: 0.0.0.1, ABR, ASBR
via 172.16.0.2, r4-eth0
============ OSPF external routing table ===========

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tests/topotests/ospf-topo1/r4/zebra.conf Normal file
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!
hostname r4
log file /tmp/r4-zebra.log
!
interface r4-eth0
ip address 172.16.0.1/24
!
interface r4-eth1
ip address 172.16.1.100/24
!
ip forwarding
!
line vty
!

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tests/topotests/ospf-topo1/test_ospf_topo1.dot Normal file
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## Color coding:
#########################
## Main FRR: #f08080 red
## Switches: #d0e0d0 gray
## RIP: #19e3d9 Cyan
## RIPng: #fcb314 dark yellow
## OSPFv2: #32b835 Green
## OSPFv3: #19e3d9 Cyan
## ISIS IPv4 #fcb314 dark yellow
## ISIS IPv6 #9a81ec purple
## BGP IPv4 #eee3d3 beige
## BGP IPv6 #fdff00 yellow
##### Colors (see http://www.color-hex.com/)
graph ospf_topo1 {
label="ospf topo1";
# Routers
r1 [
label="r1\nrtr-id 10.0.255.1/32",
shape=doubleoctagon,
fillcolor="#f08080",
style=filled,
];
r2 [
label="r2\nrtr-id 10.0.255.2/32",
shape=doubleoctagon,
fillcolor="#f08080",
style=filled,
];
r3 [
label="r3\nrtr-id 10.0.255.3/32",
shape=doubleoctagon,
fillcolor="#f08080",
style=filled,
];
r4 [
label="r4\nrtr-id 10.0.255.4/32",
shape=doubleoctagon,
fillcolor="#f08080",
style=filled,
];
# Switches
s1 [
label="s1\n10.0.1.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
s2 [
label="s2\n10.0.2.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
s3 [
label="s3\n10.0.3.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
s4 [
label="s4\n10.0.10.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
s5 [
label="s5\n172.16.0.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
s6 [
label="s6\n172.16.1.0/24",
shape=oval,
fillcolor="#d0e0d0",
style=filled,
];
# Connections
r1 -- s1 [label="eth0\n.1"];
r1 -- s3 [label="eth1\n.2"];
r2 -- s2 [label="eth0\n.1"];
r2 -- s3 [label="eth1\n.3"];
r3 -- s3 [label="eth0\n.1"];
r3 -- s4 [label="eth1\n.1"];
r3 -- s5 [label="eth2\n.2"];
r4 -- s5 [label="eth0\n.1"];
r4 -- s6 [label="eth1\n.100"];
}

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tests/topotests/ospf-topo1/test_ospf_topo1.jpg Normal file
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tests/topotests/ospf-topo1/test_ospf_topo1.py Executable file
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#!/usr/bin/env python
#
# test_ospf_topo1.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2017 by
# Network Device Education Foundation, Inc. ("NetDEF")
#
# 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 NETDEF DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF 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.
#
"""
test_ospf_topo1.py: Test the FRR/Quagga OSPF routing daemon.
"""
import os
import sys
from functools import partial
import pytest
# 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.
from mininet.topo import Topo
class OSPFTopo(Topo):
"Test topology builder"
def build(self, *_args, **_opts):
"Build function"
tgen = get_topogen(self)
# Create 4 routers
for routern in range(1, 5):
tgen.add_router('r{}'.format(routern))
# Create a empty network for router 1
switch = tgen.add_switch('s1')
switch.add_link(tgen.gears['r1'])
# Create a empty network for router 2
switch = tgen.add_switch('s2')
switch.add_link(tgen.gears['r2'])
# Interconect router 1, 2 and 3
switch = tgen.add_switch('s3')
switch.add_link(tgen.gears['r1'])
switch.add_link(tgen.gears['r2'])
switch.add_link(tgen.gears['r3'])
# Create empty netowrk for router3
switch = tgen.add_switch('s4')
switch.add_link(tgen.gears['r3'])
# Interconect router 3 and 4
switch = tgen.add_switch('s5')
switch.add_link(tgen.gears['r3'])
switch.add_link(tgen.gears['r4'])
# Create a empty network for router 4
switch = tgen.add_switch('s6')
switch.add_link(tgen.gears['r4'])
def setup_module(mod):
"Sets up the pytest environment"
tgen = Topogen(OSPFTopo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for rname, router in router_list.iteritems():
router.load_config(
TopoRouter.RD_ZEBRA,
os.path.join(CWD, '{}/zebra.conf'.format(rname))
)
router.load_config(
TopoRouter.RD_OSPF,
os.path.join(CWD, '{}/ospfd.conf'.format(rname))
)
# Initialize all routers.
tgen.start_router()
def teardown_module(mod):
"Teardown the pytest environment"
tgen = get_topogen()
tgen.stop_topology()
def test_ospf_convergence():
"Test OSPF daemon convergence"
tgen = get_topogen()
# Define test function
def compare_show_ip_ospf(rname, expected):
"""
Calls 'show ip ospf route' for router `rname` and compare the obtained
result with the expected output.
"""
current = tgen.gears[rname].vtysh_cmd('show ip ospf route')
return topotest.difflines(current, expected,
title1="Current output",
title2="Expected output")
# Run the file comparison for all routers
for rnum in range(1, 5):
router = 'r{}'.format(rnum)
# Load expected results from the command
reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
expected = open(reffile).read()
# Run test function until we get an result. Wait at most 60 seconds.
test_func = partial(compare_show_ip_ospf, router, expected)
result, diff = topotest.run_and_expect(test_func, '',
count=20, wait=3)
assert result, 'OSPF did not converge on {}:\n{}'.format(router, diff)
if __name__ == '__main__':
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))