def build(self, *args, **kwargs):
"""
+----------+ +--------+
| |
AS1 | AS2 | AS3
| |
| iBGP |
+-------+ eBGP | +-------+ +-------+ | eBGP +-------+
| as1r1 +------------+ as2r1 +--X-as2r3-Y--+ as2r2 +------------+ as3r1 |
+-------+ | +-------+ OSPF +-------+ | +-------+
1.2.3.0/24 | | 1.2.3.0/24
| |
| |
+------------+ +--------+
"""
# Add all routers
as1r1, as2r1, as2r2, as2r3, x, y, as3r1 = \
self.addRouters('as1r1', 'as2r1', 'as2r2', 'as2r3', 'x', 'y',
'as3r1', config=RouterConfig)
as1r1.addDaemon(
BGP, address_families=(_bgp.AF_INET(networks=('1.2.3.0/24', )), ))
as2r1.addDaemon(BGP, routerid='1.1.1.1')
as2r1.addDaemon(OSPF)
as2r2.addDaemon(BGP, routerid='1.1.1.2')
as2r2.addDaemon(OSPF)
as2r3.addDaemon(BGP)
as2r3.addDaemon(OSPF)
x.addDaemon(OSPF)
y.addDaemon(OSPF)
as3r1.addDaemon(
BGP, address_families=(_bgp.AF_INET(networks=('1.2.3.0/24', )), ))
self.addLink(as1r1, as2r1)
self.addLink(as2r1, x, igp_metric=1)
self.addLink(x, as2r3, igp_metric=10)
# as2r1 has preferred routerid but higher IGP cost
self.addLink(as2r3, y, igp_metric=1)
self.addLink(y, as2r2, igp_metric=self.other_cost)
self.addLink(as3r1, as2r2)
# Set AS-ownerships
self.addAS(1, (as1r1, ))
self.addiBGPFullMesh(2, (as2r1, as2r2, as2r3))
self.addAS(3, (as3r1, ))
# Add eBGP peering
ebgp_session(self, as1r1, as2r1)
ebgp_session(self, as3r1, as2r2)
# h1 = self.addHost("h1");
# h2 = self.addHost("h2");
# self.addSubnet((as1r1,h1), subnets=('1.1.1.0/24',));
# self.addSubnet((as2r1,as3r1,h2), subnets=('1.2.3.0/24',));
# self.addLink(as1r1,h1)
# self.addLink(as2r1,h2)
# self.addLink(as3r1,h2)
super().build(*args, **kwargs)
def build(self, *args, **kwargs):
"""
+----------+ +--------+
| |
AS1 | AS2 | AS3
| |
| iBGP |
+-------+ eBGP | +-------+ +-------+ | eBGP +-------+
| as1r1 +------------+ as2r1 +--X-as2r3-Y--+ as2r2 +------------+ as3r1 |
+-------+ | +-------+ OSPF +-------+ | +-------+
1.2.3.0/24 | | 1.2.3.0/24
| |
| |
+------------+ +--------+
"""
# Add all routers
as1r1 = self.addRouter('as1r1')
as1r1.addDaemon(
BGP, address_families=(_bgp.AF_INET(networks=('1.2.3.0/24', )), ))
as2r1 = self.addRouter('as2r1')
as2r1.addDaemon(BGP, routerid='1.1.1.1')
as2r1.addDaemon(OSPF)
as2r2 = self.addRouter('as2r2')
as2r2.addDaemon(BGP, routerid='1.1.1.2')
as2r2.addDaemon(OSPF)
as2r3 = self.addRouter('as2r3')
as2r3.addDaemon(BGP)
as2r3.addDaemon(OSPF)
x = self.addRouter('x')
x.addDaemon(OSPF)
y = self.addRouter('y')
y.addDaemon(OSPF)
as3r1 = self.addRouter('as3r1')
as3r1.addDaemon(
BGP, address_families=(_bgp.AF_INET(networks=('1.2.3.0/24', )), ))
self.addLink(as1r1, as2r1)
self.addLink(as2r1, x, igp_metric=1)
self.addLink(x, as2r3, igp_metric=10)
# as2r1 has preferred routerid but higher IGP cost
self.addLink(as2r3, y, igp_metric=1)
self.addLink(y, as2r2, igp_metric=self.other_cost)
self.addLink(as3r1, as2r2)
# Set AS-ownerships
self.addAS(1, (as1r1, ))
self.addiBGPFullMesh(2, (as2r1, as2r2, as2r3))
self.addAS(3, (as3r1, ))
# Add eBGP peering
ebgp_session(self, as1r1, as2r1)
ebgp_session(self, as3r1, as2r2)
super(BGPDecisionProcess, self).build(*args, **kwargs)
def bgp(self, name):
r = self.addRouter(name)
r.addDaemon(
BGP,
address_families=(_bgp.AF_INET(redistribute=('connected', )),
_bgp.AF_INET6(redistribute=('connected', ))))
return r
def __init__(self, node, *args, **kwargs):
defaults = {
'address_families': (_bgp.AF_INET(redistribute=('connected', )),
_bgp.AF_INET6(redistribute=('connected', )))
}
super(BGPConfig, self).__init__(node,
daemons=((BGP, defaults), ),
*args,
**kwargs)
def build(self, *args, **kwargs):
"""
+----------+ +--------+
| |
AS1 | AS2 | AS3
| |
| iBGP |
+-------+ eBGP | +-------+ +-------+ | eBGP +-------+
| as1r1 +------------+ as2r1 +--X-as2r3-Y--+ as2r2 +------------+ as3r1 |
+-------+ | +-------+ OSPF +-------+ | +-------+
1.2.3.0/24 | | 1.2.3.0/24
| |
| |
+------------+ +--------+
"""
# Add all routers
as1r1 = self.addRouter(
'as1r1',
config=(RouterConfig, {
'daemons': [(BGP, {
'address_families':
(_bgp.AF_INET(networks=('1.2.3.0/24', )), )
})]
}))
as2r1 = self.addRouter('as2r1',
config=(RouterConfig, {
'daemons': [(BGP, {
'routerid': '1.1.1.1'
}), OSPF]
}))
as2r2 = self.addRouter('as2r2',
config=(RouterConfig, {
'daemons': [(BGP, {
'routerid': '1.1.1.2'
}), OSPF]
}))
as2r3 = self.addRouter('as2r3',
config=(RouterConfig, {
'daemons': [OSPF, BGP]
}))
x = self.addRouter('x', config=(RouterConfig, {'daemons': [OSPF]}))
y = self.addRouter('y', config=(RouterConfig, {'daemons': [OSPF]}))
as3r1 = self.addRouter(
'as3r1',
config=(RouterConfig, {
'daemons': [(BGP, {
'address_families':
(_bgp.AF_INET(networks=('1.2.3.0/24', )), )
})]
}))
self.addLink(as1r1, as2r1)
self.addLink(as2r1, x, igp_metric=1)
self.addLink(x, as2r3, igp_metric=10)
# as2r1 has preferred routerid but higher IGP cost
self.addLink(as2r3, y, igp_metric=1)
self.addLink(y, as2r2, igp_metric=self.other_cost)
self.addLink(as3r1, as2r2)
# Set AS-ownerships
self.addOverlay(AS(1, (as1r1, )))
self.addOverlay(iBGPFullMesh(2, (as2r1, as2r2, as2r3)))
self.addOverlay(AS(3, (as3r1, )))
# Add eBGP peering
ebgp_session(self, as1r1, as2r1)
ebgp_session(self, as3r1, as2r2)
super(BGPDecisionProcess, self).build(*args, **kwargs)