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topotests: add new bfd topology with IPv6

Browse Source 
New BFD topology using IPv6 and multi hop peer to cover more daemon
features. This topology also tests BFD integration with BGP, OSPF and
OSPF6.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2019-03-07 16:44:08 -03:00
parent 261e0ba94d
commit 812f5a3d3b
28 changed files with 986 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

0
tests/topotests/bfd-topo2/__init__.py Normal file
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5
tests/topotests/bfd-topo2/r1/bfdd.conf Normal file
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bfd
peer 2001:db8:4::1 multihop local-address 2001:db8:1::1
no shutdown
!
!

13
tests/topotests/bfd-topo2/r1/bgpd.conf Normal file
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router bgp 101
bgp router-id 10.254.254.1
neighbor r2g peer-group
neighbor r2g remote-as external
neighbor r2g bfd
neighbor r1-eth0 interface peer-group r2g
address-family ipv4 unicast
redistribute connected
exit-address-family
address-family ipv6 unicast
neighbor r2g activate
exit-address-family
!

68
tests/topotests/bfd-topo2/r1/ipv4_routes.json Normal file
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{
"10.0.3.0/24": [
{
"distance": 20,
"protocol": "bgp",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.0.3.0/24",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r1-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv6"
}
]
}
],
"10.254.254.2/32": [
{
"distance": 20,
"protocol": "bgp",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.2/32",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r1-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv6"
}
]
}
],
"10.254.254.1/32": [
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.1/32",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "lo",
"interfaceIndex": 1,
"fib": true,
"flags": 3,
"active": true
}
]
}
]
}

63
tests/topotests/bfd-topo2/r1/ipv6_routes.json Normal file
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{
"2001:db8:4::/64": [
{
"distance": 20,
"protocol": "bgp",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "2001:db8:4::/64",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r1-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv6"
}
]
}
],
"2001:db8:1::/64": [
{
"distance": 20,
"protocol": "bgp",
"internalFlags": 0,
"metric": 0,
"internalStatus": 2,
"prefix": "2001:db8:1::/64",
"nexthops": [
{
"interfaceName": "r1-eth0",
"interfaceIndex": 2,
"flags": 1,
"active": true,
"afi": "ipv6"
}
]
},
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "2001:db8:1::/64",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r1-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true
}
]
}
]
}

29
tests/topotests/bfd-topo2/r1/peers.json Normal file
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[
{
"multihop":true,
"peer":"2001:db8:4::1",
"local":"2001:db8:1::1",
"status":"up",
"diagnostic":"ok",
"remote-diagnostic":"ok",
"receive-interval":300,
"transmit-interval":300,
"echo-interval":0,
"remote-receive-interval":300,
"remote-transmit-interval":300,
"remote-echo-interval":50
},
{
"multihop":false,
"interface":"r1-eth0",
"status":"up",
"diagnostic":"ok",
"remote-diagnostic":"ok",
"receive-interval":300,
"transmit-interval":300,
"echo-interval":0,
"remote-receive-interval":300,
"remote-transmit-interval":300,
"remote-echo-interval":50
}
]

6
tests/topotests/bfd-topo2/r1/zebra.conf Normal file
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interface lo
ip address 10.254.254.1/32
!
interface r1-eth0
ipv6 address 2001:db8:1::1/64
!

16
tests/topotests/bfd-topo2/r2/bgpd.conf Normal file
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router bgp 102
bgp router-id 10.254.254.2
neighbor r2g peer-group
neighbor r2g remote-as external
neighbor r2g bfd
neighbor r2-eth0 interface peer-group r2g
!
address-family ipv4 unicast
redistribute connected
exit-address-family
!
address-family ipv6 unicast
redistribute connected
neighbor r2g activate
exit-address-family
!

108
tests/topotests/bfd-topo2/r2/ipv4_routes.json Normal file
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{
"10.0.3.0/24": [
{
"distance": 110,
"protocol": "ospf",
"internalFlags": 0,
"metric": 10,
"internalStatus": 2,
"prefix": "10.0.3.0/24",
"nexthops": [
{
"active": true,
"directlyConnected": true,
"flags": 1,
"interfaceIndex": 3,
"interfaceName": "r2-eth1"
}
]
},
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.0.3.0/24",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r2-eth1",
"interfaceIndex": 3,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"10.254.254.3/32": [
{
"distance": 110,
"protocol": "ospf",
"internalFlags": 8,
"metric": 20,
"selected": true,
"installed": true,
"prefix": "10.254.254.3/32",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r2-eth1",
"ip": "10.0.3.1",
"interfaceIndex": 3,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv4"
}
]
}
],
"10.254.254.2/32": [
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.2/32",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "lo",
"interfaceIndex": 1,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"10.254.254.1/32": [
{
"distance": 20,
"protocol": "bgp",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.1/32",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r2-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv6"
}
]
}
]
}

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tests/topotests/bfd-topo2/r2/ipv6_routes.json Normal file
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{
"2001:db8:4::/64": [
{
"distance": 110,
"protocol": "ospf6",
"internalFlags": 0,
"metric": 10,
"internalStatus": 2,
"prefix": "2001:db8:4::/64",
"nexthops": [
{
"active": true,
"directlyConnected": true,
"flags": 1,
"interfaceIndex": 4,
"interfaceName": "r2-eth2"
}
]
},
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "2001:db8:4::/64",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r2-eth2",
"interfaceIndex": 4,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"2001:db8:1::/64": [
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "2001:db8:1::/64",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r2-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true
}
]
}
]
}

9
tests/topotests/bfd-topo2/r2/ospf6d.conf Normal file
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interface r2-eth2
ipv6 ospf6 bfd
!
router ospf6
ospf6 router-id 10.254.254.2
redistribute connected
redistribute bgp
interface r2-eth2 area 0.0.0.1
!

9
tests/topotests/bfd-topo2/r2/ospfd.conf Normal file
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interface r2-eth1
ip ospf area 0.0.0.1
ip ospf bfd
!
router ospf
ospf router-id 10.254.254.2
redistribute connected
redistribute bgp
!

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tests/topotests/bfd-topo2/r2/peers.json Normal file
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[
{
"status": "up",
"transmit-interval": 300,
"remote-receive-interval": 300,
"echo-interval": 0,
"diagnostic": "ok",
"multihop": false,
"interface": "r2-eth0",
"remote-transmit-interval": 300,
"receive-interval": 300,
"remote-echo-interval": 50,
"remote-diagnostic": "ok"
},
{
"status": "up",
"transmit-interval": 300,
"remote-receive-interval": 300,
"echo-interval": 0,
"diagnostic": "ok",
"multihop": false,
"interface": "r2-eth2",
"remote-transmit-interval": 300,
"receive-interval": 300,
"remote-echo-interval": 50,
"remote-diagnostic": "ok"
},
{
"status": "up",
"transmit-interval": 300,
"remote-receive-interval": 300,
"echo-interval": 0,
"diagnostic": "ok",
"multihop": false,
"interface": "r2-eth1",
"remote-transmit-interval": 300,
"receive-interval": 300,
"remote-echo-interval": 50,
"remote-diagnostic": "ok",
"peer": "10.0.3.1"
}
]

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tests/topotests/bfd-topo2/r2/zebra.conf Normal file
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ip forwarding
ipv6 forwarding
!
interface lo
ip address 10.254.254.2/32
!
interface r2-eth0
ipv6 address 2001:db8:1::2/64
!
interface r2-eth1
ip address 10.0.3.2/24
!
interface r2-eth2
ipv6 address 2001:db8:4::2/64
!

109
tests/topotests/bfd-topo2/r3/ipv4_routes.json Normal file
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{
"10.0.3.0/24": [
{
"distance": 110,
"protocol": "ospf",
"internalFlags": 0,
"metric": 10,
"internalStatus": 0,
"prefix": "10.0.3.0/24",
"nexthops": [
{
"active": true,
"directlyConnected": true,
"flags": 1,
"interfaceIndex": 2,
"interfaceName": "r3-eth0"
}
]
},
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.0.3.0/24",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r3-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"10.254.254.3/32": [
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.3/32",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "lo",
"interfaceIndex": 1,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"10.254.254.2/32": [
{
"distance": 110,
"protocol": "ospf",
"internalFlags": 8,
"metric": 20,
"selected": true,
"installed": true,
"prefix": "10.254.254.2/32",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r3-eth0",
"ip": "10.0.3.2",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv4"
}
]
}
],
"10.254.254.1/32": [
{
"distance": 110,
"protocol": "ospf",
"internalFlags": 8,
"metric": 20,
"selected": true,
"installed": true,
"prefix": "10.254.254.1/32",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r3-eth0",
"ip": "10.0.3.2",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv4"
}
]
}
]
}

2
tests/topotests/bfd-topo2/r3/ipv6_routes.json Normal file
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{
}

8
tests/topotests/bfd-topo2/r3/ospfd.conf Normal file
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interface r3-eth0
ip ospf area 0.0.0.1
ip ospf bfd
!
router ospf
ospf router-id 10.254.254.3
redistribute connected
!

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tests/topotests/bfd-topo2/r3/peers.json Normal file
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[
{
"status": "up",
"transmit-interval": 300,
"remote-receive-interval": 300,
"echo-interval": 0,
"diagnostic": "ok",
"multihop": false,
"interface": "r3-eth0",
"remote-transmit-interval": 300,
"receive-interval": 300,
"remote-echo-interval": 50,
"remote-diagnostic": "ok",
"peer": "10.0.3.2"
}
]

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tests/topotests/bfd-topo2/r3/zebra.conf Normal file
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interface lo
ip address 10.254.254.3/32
!
interface r3-eth0
ip address 10.0.3.1/24
!

5
tests/topotests/bfd-topo2/r4/bfdd.conf Normal file
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bfd
peer 2001:db8:1::1 multihop local-address 2001:db8:4::1
no shutdown
!
!

24
tests/topotests/bfd-topo2/r4/ipv4_routes.json Normal file
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@ -0,0 +1,24 @@
{
"10.254.254.4/32": [
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "10.254.254.4/32",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "lo",
"interfaceIndex": 1,
"fib": true,
"flags": 3,
"active": true
}
]
}
]
}

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tests/topotests/bfd-topo2/r4/ipv6_routes.json Normal file
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{
"2001:db8:4::/64": [
{
"distance": 110,
"protocol": "ospf6",
"internalFlags": 0,
"metric": 10,
"internalStatus": 2,
"prefix": "2001:db8:4::/64",
"nexthops": [
{
"active": true,
"directlyConnected": true,
"flags": 1,
"interfaceIndex": 2,
"interfaceName": "r4-eth0"
}
]
},
{
"distance": 0,
"protocol": "connected",
"internalFlags": 8,
"metric": 0,
"selected": true,
"installed": true,
"prefix": "2001:db8:4::/64",
"internalStatus": 32,
"nexthops": [
{
"directlyConnected": true,
"interfaceName": "r4-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true
}
]
}
],
"2001:db8:1::/64": [
{
"distance": 110,
"protocol": "ospf6",
"internalFlags": 8,
"metric": 10,
"selected": true,
"installed": true,
"prefix": "2001:db8:1::/64",
"internalStatus": 34,
"nexthops": [
{
"interfaceName": "r4-eth0",
"interfaceIndex": 2,
"fib": true,
"flags": 3,
"active": true,
"afi": "ipv6"
}
]
}
]
}

8
tests/topotests/bfd-topo2/r4/ospf6d.conf Normal file
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interface r4-eth0
ipv6 ospf6 bfd
!
router ospf6
ospf6 router-id 10.254.254.4
redistribute connected
interface r4-eth0 area 0.0.0.1
!

29
tests/topotests/bfd-topo2/r4/peers.json Normal file
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[
{
"multihop":true,
"peer":"2001:db8:1::1",
"local":"2001:db8:4::1",
"status":"up",
"diagnostic":"ok",
"remote-diagnostic":"ok",
"receive-interval":300,
"transmit-interval":300,
"echo-interval":0,
"remote-receive-interval":300,
"remote-transmit-interval":300,
"remote-echo-interval":50
},
{
"multihop":false,
"interface":"r4-eth0",
"status":"up",
"diagnostic":"ok",
"remote-diagnostic":"ok",
"receive-interval":300,
"transmit-interval":300,
"echo-interval":0,
"remote-receive-interval":300,
"remote-transmit-interval":300,
"remote-echo-interval":50
}
]

6
tests/topotests/bfd-topo2/r4/zebra.conf Normal file
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interface lo
ip address 10.254.254.4/32
!
interface r4-eth0
ipv6 address 2001:db8:4::1/64
!

73
tests/topotests/bfd-topo2/test_bfd_topo2.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 template {
label="bfd-topo2";
# Routers
r1 [
shape=doubleoctagon,
label="r1",
fillcolor="#f08080",
style=filled,
];
r2 [
shape=doubleoctagon
label="r2",
fillcolor="#f08080",
style=filled,
];
r3 [
shape=doubleoctagon
label="r3",
fillcolor="#f08080",
style=filled,
];
r4 [
shape=doubleoctagon
label="r4",
fillcolor="#f08080",
style=filled,
];
# Switches
sw1 [
shape=oval,
label="sw1\n2001:db8:1::/64",
fillcolor="#d0e0d0",
style=filled,
];
sw2 [
shape=oval,
label="sw2\n10.0.3.0/24",
fillcolor="#d0e0d0",
style=filled,
];
sw3 [
shape=oval,
label="sw3\n2001:db8:4::/64",
fillcolor="#d0e0d0",
style=filled,
];
# Connections
r1 -- sw1 [label="eth0"];
r2 -- sw1 [label="eth0"];
r2 -- sw2 [label="eth1"];
r3 -- sw2 [label="eth0"];
r2 -- sw3 [label="eth2"];
r4 -- sw3 [label="eth0"];
}

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tests/topotests/bfd-topo2/test_bfd_topo2.py Normal file
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#!/usr/bin/env python
#
# test_bfd_topo2.py
# Part of NetDEF Topology Tests
#
# Copyright (c) 2019 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_bfd_topo2.py: Test the FRR/Quagga BFD daemon with multihop and BGP
unnumbered.
"""
import os
import sys
import json
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 BFDTopo(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))
switch = tgen.add_switch('s1')
switch.add_link(tgen.gears['r1'])
switch.add_link(tgen.gears['r2'])
switch = tgen.add_switch('s2')
switch.add_link(tgen.gears['r2'])
switch.add_link(tgen.gears['r3'])
switch = tgen.add_switch('s3')
switch.add_link(tgen.gears['r2'])
switch.add_link(tgen.gears['r4'])
def setup_module(mod):
"Sets up the pytest environment"
tgen = Topogen(BFDTopo, 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_BFD,
os.path.join(CWD, '{}/bfdd.conf'.format(rname))
)
router.load_config(
TopoRouter.RD_BGP,
os.path.join(CWD, '{}/bgpd.conf'.format(rname))
)
router.load_config(
TopoRouter.RD_OSPF,
os.path.join(CWD, '{}/ospfd.conf'.format(rname))
)
router.load_config(
TopoRouter.RD_OSPF6,
os.path.join(CWD, '{}/ospf6d.conf'.format(rname))
)
# Initialize all routers.
tgen.start_router()
# Verify that we are using the proper version and that the BFD
# daemon exists.
for router in router_list.values():
# Check for Version
if router.has_version('<', '5.1'):
tgen.set_error('Unsupported FRR version')
break
def teardown_module(_mod):
"Teardown the pytest environment"
tgen = get_topogen()
tgen.stop_topology()
def test_protocols_convergence():
"""
Assert that all protocols have converged before checking for the BFD
statuses as they depend on it.
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Check IPv4 routing tables.
logger.info("Checking IPv4 routes for convergence")
for router in tgen.routers().values():
json_file = '{}/{}/ipv4_routes.json'.format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info('skipping file {}'.format(json_file))
continue
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ip route json', expected)
_, result = topotest.run_and_expect(test_func, None, count=160,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
# Check IPv6 routing tables.
logger.info("Checking IPv6 routes for convergence")
for router in tgen.routers().values():
json_file = '{}/{}/ipv6_routes.json'.format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info('skipping file {}'.format(json_file))
continue
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show ipv6 route json', expected)
_, result = topotest.run_and_expect(test_func, None, count=160,
wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_bfd_connection():
"Assert that the BFD peers can find themselves."
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
logger.info('waiting for bfd peers to go up')
for router in tgen.routers().values():
json_file = '{}/{}/peers.json'.format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(topotest.router_json_cmp,
router, 'show bfd peers json', expected)
_, result = topotest.run_and_expect(test_func, None, count=8, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
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))