forked from Maxmawt/LINGI2142-IPMininet
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathtopo_med.py
128 lines (117 loc) · 5.46 KB
/
topo_med.py
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
from ipmininet.iptopo import IPTopo
from ipmininet.router.config import RouterConfig, BGP, ebgp_session, set_med, new_access_list
class MedBGPTopo(IPTopo):
"""This topology is composed of two AS connected in dual homing with different local pref"""
def build(self, *args, **kwargs):
"""
TODO slide 26 iBGP
+----------+ +--------+
| |
AS1 | AS2 | AS3
| |
| |
+-------+ eBGP | +-------+ iBGP +-------+ | eBGP +-------+
| as1r1 +------------+ as2r1 +-------------+ as2r2 +------------+ as3r1 |
+-------+ | +-------+ +-------+ | +-------+
| |
| |
| |
+------------+ +--------+
"""
# Add all routers
as1r1 = self.addRouter('as1r1')
as1r1.addDaemon(BGP)
as1r2 = self.addRouter('as1r2')
as1r2.addDaemon(BGP)
as1r3 = self.addRouter('as1r3')
as1r3.addDaemon(BGP)
as1r4 = self.addRouter('as1r4')
as1r4.addDaemon(BGP)
as1r5 = self.addRouter('as1r5')
as1r5.addDaemon(BGP)
as1r6 = self.addRouter('as1r6')
as1r6.addDaemon(BGP)
as4r1 = self.addRouter('as4r1')
as4r1.addDaemon(BGP)
as4r2 = self.addRouter('as4r2')
as4r2.addDaemon(BGP)
as3r1 = self.addRouter('as3r1')
as3r1.addDaemon(BGP)
as3r2 = self.addRouter('as3r2')
as3r2.addDaemon(BGP)
as2r1 = self.addRouter('as2r1')
as2r1.addDaemon(BGP, address_families=(_bgp.AF_INET6(networks=('dead:beef::/32',)),))
as2h1 = self.addHost("as2h1")
as1h1 = self.addHost("as1h1")
as1h2 = self.addHost("as1h2")
as1h3 = self.addHost("as1h3")
as1h4 = self.addHost("as1h4")
as1h5 = self.addHost("as1h5")
as1h6 = self.addHost("as1h6")
# Add Links
self.addLink(as1r1, as1r6, params1={"ip": ("fd00:1:1::1/48",)},
params2={"ip": ("fd00:1:1::2/48",)})
self.addLink(as1r1, as1r3, params1={"ip": ("fd00:1:2::1/48",)},
params2={"ip": ("fd00:1:2::2/48",)})
self.addLink(as1r3, as1r2, params1={"ip": ("fd00:1:4::1/48",)},
params2={"ip": ("fd00:1:4::2/48",)})
self.addLink(as1r3, as1r6, params1={"ip": ("fd00:1:3::1/48",)},
params2={"ip": ("fd00:1:3::2/48",)})
self.addLink(as1r2, as1r4, params1={"ip": ("fd00:1:5::1/48",)},
params2={"ip": ("fd00:1:5::2/48",)})
self.addLink(as1r4, as1r5, params1={"ip": ("fd00:1:6::1/48",)},
params2={"ip": ("fd00:1:6::2/48",)})
self.addLink(as1r5, as1r6, params1={"ip": ("fd00:1:7::1/48",)},
params2={"ip": ("fd00:1:7::2/48",)})
self.addLink(as4r1, as1r5, params1={"ip": ("fd00:4:2::1/48",)},
params2={"ip": ("fd00:4:2::2/48",)})
self.addLink(as4r2, as1r4, params1={"ip": ("fd00:4:1::1/48",)},
params2={"ip": ("fd00:4:1::2/48",)})
self.addLink(as3r2, as1r1, params1={"ip": ("fd00:3:1::1/48",)},
params2={"ip": ("fd00:3:1::2/48",)})
self.addLink(as3r1, as1r6; params1={"ip": ("fd00:3:2::1/48",)},
params2={"ip": ("fd00:3:2::2/48",)})
self.addLink(as3r1, as3r2, params1={"ip": ("fd00:3:3::1/48",)},
params2={"ip": ("fd00:3:3::2/48",)}, igp_cost=7)
self.addLink(as3r1, as2r1, params1={"ip": ("fd00:2:1::1/48",)},
params2={"ip": ("fd00:2:1::2/48",)})
self.addLink(as2r1, as4r1, params1={"ip": ("fd00:2:2::1/48",)},
params2={"ip": ("fd00:2:2::2/48",)})
self.addLink(as4r1, as4r2, params1={"ip": ("fd00:4:3::1/48",)},
params2={"ip": ("fd00:4:3::2/48",)}, igp_cost=2)
self.addLink(as2r1, as2h1, params1={"ip": ("dead:beef::1/32",)},
params2={"ip": ("dead:beef::2/32",)})
self.addLink(as1r1, as1h1)
self.addLink(as1r2, as1h2)
self.addLink(as1r3, as1h3)
self.addLink(as1r4, as1h4)
self.addLink(as1r5, as1h5)
self.addLink(as1r6, as1h6)
# Set Med
new_access_list(self, (as3r2, as1r1, as3r1, as1r6, as4r1, as1r5, as4r2, as1r4), 'all', ('any',))
set_med(self, as3r2, as1r1, 7, filter_type='access-list', filter_names=('all',))
set_med(self, as3r1, as1r6, 0, filter_type='access-list', filter_names=('all',))
set_med(self, as4r1, as1r5, 0, filter_type='access-list', filter_names=('all',))
set_med(self, as4r2, as1r4, 2, filter_type='access-list', filter_names=('all',))
# Add full mesh
self.addAS(2, (as2r1,))
self.addiBGPFullMesh(3, routers=[as3r1, as3r2])
self.addiBGPFullMesh(4, routers=[as4r1, as4r2])
self.addiBGPFullMesh(1, routers=[as1r1, as1r2, as1r3, as1r4, as1r5, as1r6])
# Add eBGP session
ebgp_session(self, as1r6, as3r1)
ebgp_session(self, as1r1, as3r2)
ebgp_session(self, as1r4, as4r2)
ebgp_session(self, as1r5, as4r1)
ebgp_session(self, as3r1, as2r1)
ebgp_session(self, as2r1, as4r1)
# Add test hosts ?
# for r in self.routers():
# self.addLink(r, self.addHost('h%s' % r))
super(MedBGPTopo, self).build(*args, **kwargs)
def bgp(self, name):
r = self.addRouter(name, config=RouterConfig)
r.addDaemon(BGP, address_families=(
_bgp.AF_INET(redistribute=('connected',)),
_bgp.AF_INET6(redistribute=('connected',))))
return r