Second, due to introducing switch cluster concept in Floodlight Controller, I will provide a simple example to give switch clusters in topology.
my_topology.py
|
from mininet.topo import Topo
class MyTopo( Topo ):
"Simple topology example."
def __init__( self ):
"Create custom topo."
# Initialize topology
Topo.__init__( self )
h1 = self.addHost( 'h1' )
h2 = self.addHost( 'h2' )
h3 = self.addHost( 'h3' )
h4 = self.addHost( 'h4' )
h5 = self.addHost( 'h5' )
h6 = self.addHost( 'h6' )
s1 = self.addSwitch( 's1' )
s2 = self.addSwitch( 's2' )
s3 = self.addSwitch( 's3' )
s4 = self.addSwitch( 's4' )
s5 = self.addSwitch( 's5' )
s6 = self.addSwitch( 's6' )
s7 = self.addSwitch( 's7' )
self.addLink( s1, s2 )
self.addLink( s1, s3 )
self.addLink( s2, s3 )
self.addLink( s2, s4 )
self.addLink( s2, s5 )
self.addLink( s3, s4 )
self.addLink( s3, s5 )
self.addLink( s4, h1 )
self.addLink( s4, h2 )
self.addLink( s5, s3 )
self.addLink( s5, s4 )
self.addLink( s6, h5 )
self.addLink( s7, h6 )
topos = { 'mytopo': ( lambda: MyTopo() ) }
|
Testing
Use the REST API in Floodlight Controller to query the related information as follows:
> curl -s http://localhost:8080/wm/topology/switchclusters/json
{
"00:00:00:00:00:00:00:06": [
"00:00:00:00:00:00:00:06",
"00:00:00:00:00:00:00:07"
],
"00:00:00:00:00:00:00:01": [
"00:00:00:00:00:00:00:05",
"00:00:00:00:00:00:00:02",
"00:00:00:00:00:00:00:01",
"00:00:00:00:00:00:00:03",
"00:00:00:00:00:00:00:04"
]
}
> curl -s http://localhost:8080/wm/topology/links/json
[
{
"src-switch": "00:00:00:00:00:00:00:05",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:02",
"dst-port": 4,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:02",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:01",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:04",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:02",
"dst-port": 3,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:05",
"src-port": 2,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:03",
"dst-port": 4,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:02",
"src-port": 3,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:04",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:06",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:07",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:07",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:06",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:03",
"src-port": 3,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:04",
"dst-port": 2,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:03",
"src-port": 4,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:05",
"dst-port": 2,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:03",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:01",
"dst-port": 2,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:03",
"src-port": 2,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:02",
"dst-port": 2,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:02",
"src-port": 4,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:05",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:04",
"src-port": 2,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:03",
"dst-port": 3,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:02",
"src-port": 2,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:03",
"dst-port": 2,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:01",
"src-port": 2,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:03",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
},
{
"src-switch": "00:00:00:00:00:00:00:01",
"src-port": 1,
"src-port-state": 0,
"dst-switch": "00:00:00:00:00:00:00:02",
"dst-port": 1,
"dst-port-state": 0,
"type": "internal"
}
]
> curl -s http://localhost:8080/wm/device/
[
{
"entityClass": "DefaultEntityClass",
"mac": [
"82:da:cd:82:03:13"
],
"ipv4": [
"10.0.0.6"
],
"vlan": [],
"attachmentPoint": [
{
"port": 2,
"switchDPID": "00:00:00:00:00:00:00:07",
"errorStatus": null
}
],
"lastSeen": 1363763792481
},
{
"entityClass": "DefaultEntityClass",
"mac": [
"62:76:b0:43:51:c7"
],
"ipv4": [
"10.0.0.1"
],
"vlan": [],
"attachmentPoint": [
{
"port": 3,
"switchDPID": "00:00:00:00:00:00:00:04",
"errorStatus": null
}
],
"lastSeen": 1363763762405
},
{
"entityClass": "DefaultEntityClass",
"mac": [
"4a:77:dc:12:86:50"
],
"ipv4": [
"10.0.0.3"
],
"vlan": [],
"attachmentPoint": [
{
"port": 3,
"switchDPID": "00:00:00:00:00:00:00:05",
"errorStatus": null
}
],
"lastSeen": 1363763762427
},
{
"entityClass": "DefaultEntityClass",
"mac": [
"de:42:94:b1:24:a7"
],
"ipv4": [
"10.0.0.2"
],
"vlan": [],
"attachmentPoint": [
{
"port": 4,
"switchDPID": "00:00:00:00:00:00:00:04",
"errorStatus": null
}
],
"lastSeen": 1363763762417
},
{
"entityClass": "DefaultEntityClass",
"mac": [
"02:ee:63:f6:65:ea"
],
"ipv4": [
"10.0.0.4"
],
"vlan": [],
"attachmentPoint": [
{
"port": 4,
"switchDPID": "00:00:00:00:00:00:00:05",
"errorStatus": null
}
],
"lastSeen": 1363763767429
},
{
"entityClass": "DefaultEntityClass",
"mac": [
"42:a4:fd:b6:62:b9"
],
"ipv4": [
"10.0.0.5"
],
"vlan": [],
"attachmentPoint": [
{
"port": 2,
"switchDPID": "00:00:00:00:00:00:00:06",
"errorStatus": null
}
],
"lastSeen": 1363763792493
}
]
P.S: Here is a more complete example of mininet for you to refer to: http://blog.sflow.com/2013/06/flow-collisions.html
It also contains the setting of sFlow. Awesome!
