1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
# Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
from itertools import chain
import sys
import time
import unittest
from fabric.api import local
import nose
from lib.noseplugin import OptionParser, parser_option
from lib import base
from lib.base import (
BGP_FSM_ACTIVE,
BGP_FSM_ESTABLISHED,
)
from lib.gobgp import GoBGPContainer
class GoBGPTestBase(unittest.TestCase):
@classmethod
def setUpClass(cls):
gobgp_ctn_image_name = parser_option.gobgp_image
base.TEST_PREFIX = parser_option.test_prefix
g1 = GoBGPContainer(name='g1', asn=65000, router_id='192.168.0.1',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g2 = GoBGPContainer(name='g2', asn=65001, router_id='192.168.0.2',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g3 = GoBGPContainer(name='g3', asn=65002, router_id='192.168.0.3',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g4 = GoBGPContainer(name='g4', asn=65003, router_id='192.168.0.4',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
ctns = [g1, g2, g3, g4]
initial_wait_time = max(ctn.run() for ctn in ctns)
time.sleep(initial_wait_time)
g1.add_peer(g2, graceful_restart=True, llgr=True)
g2.add_peer(g1, graceful_restart=True, llgr=True)
g1.add_peer(g3, graceful_restart=True, llgr=True)
g3.add_peer(g1, graceful_restart=True, llgr=True)
g1.add_peer(g4, graceful_restart=True)
g4.add_peer(g1, graceful_restart=True)
cls.bgpds = {'g1': g1, 'g2': g2, 'g3': g3, 'g4': g4}
# test each neighbor state is turned establish
def test_01_neighbor_established(self):
g1 = self.bgpds['g1']
g2 = self.bgpds['g2']
g3 = self.bgpds['g3']
g4 = self.bgpds['g4']
g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=g2)
g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=g3)
g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=g4)
def test_02_graceful_restart(self):
g1 = self.bgpds['g1']
g2 = self.bgpds['g2']
g3 = self.bgpds['g3']
g4 = self.bgpds['g4']
g2.local('gobgp global rib add 10.0.0.0/24')
g2.local('gobgp global rib add 10.10.0.0/24 community no-llgr')
time.sleep(1)
g2.stop_gobgp()
g1.wait_for(expected_state=BGP_FSM_ACTIVE, peer=g2)
time.sleep(1)
self.assertTrue(len(g1.get_global_rib('10.0.0.0/24')) == 1)
# 10.10.0.0/24 is announced with no-llgr community
# must not exist in the rib
self.assertTrue(len(g1.get_global_rib('10.10.0.0/24')) == 0)
for d in g1.get_global_rib():
for p in d['paths']:
self.assertTrue(p['stale'])
self.assertTrue(len(g3.get_global_rib('10.0.0.0/24')) == 1)
# check llgr-stale community is added to 10.0.0.0/24
r = g3.get_global_rib('10.0.0.0/24')[0]['paths'][0]
comms = list(chain.from_iterable([attr['communities'] for attr in r['attrs'] if attr['type'] == 8]))
self.assertTrue(0xffff0006 in comms)
# g4 is not llgr capable, llgr-stale route must be
# withdrawn
self.assertTrue(len(g4.get_global_rib('10.0.0.0/24')) == 0)
g2.start_gobgp(graceful_restart=True)
g2.local('gobgp global rib add 10.0.0.0/24')
g2.local('gobgp global rib add 10.10.0.0/24')
def test_03_neighbor_established(self):
g1 = self.bgpds['g1']
g2 = self.bgpds['g2']
# g3 = self.bgpds['g3']
# g4 = self.bgpds['g4']
g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=g2)
time.sleep(1)
self.assertTrue(len(g1.get_global_rib('10.0.0.0/24')) == 1)
self.assertTrue(len(g1.get_global_rib('10.10.0.0/24')) == 1)
for d in g1.get_global_rib():
for p in d['paths']:
self.assertFalse(p.get('stale', False))
def test_04_llgr_stale_route_depreferenced(self):
g1 = self.bgpds['g1']
g2 = self.bgpds['g2']
g3 = self.bgpds['g3']
g4 = self.bgpds['g4']
g4.local('gobgp global rib add 10.0.0.0/24 med 100')
time.sleep(1)
# check g2's path is chosen as best and advertised
rib = g3.get_global_rib('10.0.0.0/24')
self.assertTrue(len(rib) == 1)
self.assertTrue(g2.asn in rib[0]['paths'][0]['aspath'])
g2.stop_gobgp()
g1.wait_for(expected_state=BGP_FSM_ACTIVE, peer=g2)
time.sleep(1)
# llgr_stale route depreference must happend
# check g4's path is chosen as best and advertised
rib = g3.get_global_rib('10.0.0.0/24')
self.assertTrue(len(rib) == 1)
self.assertTrue(g4.asn in rib[0]['paths'][0]['aspath'])
# if no candidate exists, llgr_stale route will be chosen as best
rib = g3.get_global_rib('10.10.0.0/24')
self.assertTrue(len(rib) == 1)
self.assertTrue(g2.asn in rib[0]['paths'][0]['aspath'])
def test_05_llgr_restart_timer_expire(self):
time.sleep(35)
g3 = self.bgpds['g3']
rib = g3.get_global_rib('10.10.0.0/24')
self.assertTrue(len(rib) == 0)
if __name__ == '__main__':
output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True)
if int(output) is not 0:
print "docker not found"
sys.exit(1)
nose.main(argv=sys.argv, addplugins=[OptionParser()],
defaultTest=sys.argv[0])
|
