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Download SPRING-OPEN VM here: http://downloads.onosproject.org/spring-open/SPRING-OPEN.ova
Use VirtualBox to import and run the SPRING-OPEN VM.

From a terminal on your host machine, use ssh to login to the VM using the following username (mininet) and password (mininet). Yes, it is a Mininet VM where we have loaded other stuff, which is why the username@host will show up as 'mininet@mininet-vm'. Of course, you have to replace the ip-address shown below '10.1.9.125' with the IP address assigned to the VM during startup.

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$ ssh -X mininet@10.1.9.125
mininet@10.1.9.125's password: 
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-24-generic x86_64)
 * Documentation:  https://help.ubuntu.com/
Last login: Mon Dec  1 20:11:46 2014

mininet@mininet-vm:~$ ls -l
total 1592
drwxrwxr-x 13 mininet mininet    4096 Jul 18 05:47 mininet
drwxrwxr-x 11 mininet mininet    4096 Jan 10  2013 nbeesrc-jan-10-2013
drwxrwxr-x 16 mininet mininet    4096 Nov 27 15:16 ofsoftswitch13
-rw-rw-r--  1 mininet mininet 1605450 Nov 25 15:26 openflow.lua
drwxrwxr-x 16 mininet mininet    4096 Dec  4 15:55 spring-open
drwxrwxr-x 11 mininet mininet    4096 Dec  4 15:50 spring-open-cli
drwxr-xr-x 10 mininet mininet    4096 Feb 20  2014 zookeeper-3.4.6
mininet@mininet-vm:~$

Pull the latest controller code. When pulling code, another screen may pop up declaring a merge operation – just hit Control-X to get rid of it.
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mininet@mininet-vm:~$ cd spring-open mininet@mininet-vm:~/spring-open$ git pull
When pulling code, another screen may pop up declaring a merge operation – just hit Control-X to get rid of it.

Make sure that the network-configuration file to be loaded on the controller says 'sr-ecmp10-demo.conf' — see the last line below

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mininet@mininet-vm:~/spring-open$ cat conf/onos.properties 
floodlight.modules = net.floodlightcontroller.core.FloodlightProvider,\
net.floodlightcontroller.threadpool.ThreadPool,\
net.onrc.onos.core.topology.TopologyPublisher, \
net.onrc.onos.core.datagrid.HazelcastDatagrid,\
net.onrc.onos.core.flowprogrammer.FlowProgrammer,\
net.onrc.onos.core.intent.runtime.PathCalcRuntimeModule,\
net.onrc.onos.core.intent.runtime.PlanInstallModule,\
net.onrc.onos.core.registry.ZookeeperRegistry, \
net.onrc.onos.core.metrics.OnosMetricsModule, \
net.onrc.onos.apps.websocket.WebSocketModule, \
net.onrc.onos.core.main.config.DefaultConfiguration, \
net.onrc.onos.apps.segmentrouting.SegmentRoutingManager
net.floodlightcontroller.restserver.RestApiServer.port = 8080
net.floodlightcontroller.core.FloodlightProvider.openflowport = 6633
net.floodlightcontroller.core.FloodlightProvider.workerthreads = 16
net.floodlightcontroller.core.FloodlightProvider.cpqdUsePipeline13 = true
net.floodlightcontroller.forwarding.Forwarding.idletimeout = 5
net.floodlightcontroller.forwarding.Forwarding.hardtimeout = 0
net.onrc.onos.apps.websocket.WebSocketModule.port = 8081
net.floodlightcontroller.core.FloodlightProvider.cpqdUsePipeline13 = true
# NOTE: Do NOT modify or remove the line below. This value will be overwritten by onos.sh script.
net.onrc.onos.core.datagrid.HazelcastDatagrid.datagridConfig = 
# Uncomment and list all the ZooKeeper instances after localhost on multi-instance deployment.
#net.onrc.onos.core.registry.ZookeeperRegistry.connectionString = localhost:2181,otherhost:2181
# Specify a network configuration file to be used by the NetworkConfigManager
net.onrc.onos.core.configmanager.NetworkConfigManager.networkConfigFile = conf/sr-ecmp10-demo.conf

Run the SPRING-OPEN version of the ONOS controller

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mininet@mininet-vm:~/spring-open$ ./onos.sh start
Starting ZooKeeper ... ls: cannot access /home/mininet/spring-open/onos-logs/zk.mininet-vm.log*: No such file or directory
JMX enabled by default
Using config: /home/mininet/spring-open/conf/zoo.cfg
Starting zookeeper ... STARTED
Starting ONOS controller ...  STARTED

You can check if the controller is running correctly as following

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mininet@mininet-vm:~/spring-open$ ./onos.sh status
[ZooKeeper]
JMX enabled by default
Using config: /home/mininet/spring-open/conf/zoo.cfg
Mode: standalone
[RAMCloud coordinator]
0 RAMCloud coordinator running
[RAMCloud server]
0 RAMCloud server running
[ONOS core]
1 instance of onos running

You can watch the controller logs if you wish

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mininet@mininet-vm:~/spring-open$ tail -f onos-logs/onos.mininet-vm.log
2014-12-04 18:03:48,435 DEBUG [main] n.f.c.i.Controller [Controller.java:832] OFMessageListeners for FLOW_REMOVED: planInstall,
2014-12-04 18:03:48,436 DEBUG [main] n.f.c.i.Controller [Controller.java:832] OFMessageListeners for BARRIER_REPLY: flowpusher,
2014-12-04 18:03:48,436 DEBUG [main] n.f.c.i.Controller [Controller.java:832] OFMessageListeners for PACKET_IN: linkdiscovery,hostmanager,packetmodule,
2014-12-04 18:03:48,438 DEBUG [main] n.f.c.i.Controller [Controller.java:832] OFMessageListeners for PORT_STATUS: linkdiscovery,
2014-12-04 18:03:48,438 DEBUG [main] n.f.c.i.Controller [Controller.java:840] SwitchUpdate Listeners: FlowProgrammer,linkdiscovery,topologyPublisher,
2014-12-04 18:03:48,802 INFO [main] n.f.c.i.Controller [Controller.java:1126] Listening for switch connections on 0.0.0.0/0.0.0.0:6633

On another terminal run the SPRING-OPEN CLI

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mininet@mininet-vm:~$ cd spring-open-cli/
mininet@mininet-vm:~/spring-open-cli$ source ./workspace/ve/bin/activate
(ve)mininet@mininet-vm:~/spring-open-cli$ sudo make start-sdncon
if ! lsof -iTCP:8000 -sTCP:LISTEN >/dev/null; then \
	( \
	  cd /home/mininet/spring-open-cli/sdncon; \
	  [ -d /home/mininet/spring-open-cli/workspace/ve/cassandra/data/sdncon ] || python manage.py syncdb --noinput; \
	  /home/mininet/spring-open-cli/build/start-and-wait-for-port.sh -p 8000 -l /home/mininet/spring-open-cli/workspace/ve/log/sdncon.log python manage.py runserver 0.0.0.0:8000; \
	); \
	fi
Creating tables ...
Installing custom SQL ...
Installing indexes ...
No fixtures found.
Launching python manage.py runserver 0.0.0.0:8000 (log: /home/mininet/spring-open-cli/workspace/ve/log/sdncon.log)
Waiting for port 8000.... OK
+++ sdncon running
(ve)mininet@mininet-vm:~/spring-open-cli$ cd cli/
(ve)mininet@mininet-vm:~/spring-open-cli/cli$ ./cli.py 
version200
default controller: 127.0.0.1:8000, SDN OS 1.0 - custom version
mininet-vm> enable
mininet-vm#

Open another terminal to run Mininet

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mininet@mininet-vm:~$ cd mininet/
mininet@mininet-vm:~/mininet$ cd custom/
mininet@mininet-vm:~/mininet/custom$ sudo ./testEcmp_10sw.py 
*** Creating network
*** Adding controller
*** Adding hosts:
h1 h2 h3 h4 
*** Adding switches:
s1 s2 s3 s4 s5 s6 s7 s8 s9 s10 
*** Adding links:
(h1, s1) (h2, s6) (h3, s7) (h4, s10) (s1, s2) (s1, s3) (s2, s3) (s2, s5) (s2, s8) (s2, s9) (s3, s4) (s4, s5) (s4, s6) (s5, s6) (s5, s8) (s5, s9) (s7, s8) (s7, s9) (s8, s9) (s8, s10) (s9, s10) 
*** Configuring hosts
h1 h2 h3 h4 
*** Starting controller
*** Starting 10 switches
s1 s2 s3 s4 s5 s6 s7 s8 s9 s10 
*** Starting CLI:
mininet>

Check if all the switches are connected to SPRING-OPEN controller using CLI.

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mininet-vm# sh switch 
#  Switch DPID             Alias        Connected Since              Connected At    Type   Controller
--|-----------------------|------------|----------------------------|---------------|------|----------
1  00:00:00:00:00:00:00:01 SFO-ER1      Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60315 packet mininet-vm
2  00:00:00:00:00:00:00:02 SFO-CR2      Thu Dec 04 16:45:03 PST 2014 127.0.0.1:60311 packet mininet-vm
3  00:00:00:00:00:00:00:03 SFO-CR3      Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60319 packet mininet-vm
4  00:00:00:00:00:00:00:04 Dallas-CR4   Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60313 packet mininet-vm
5  00:00:00:00:00:00:00:05 Dallas-CR5   Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60320 packet mininet-vm
6  00:00:00:00:00:00:00:06 Dallas-ER6   Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60314 packet mininet-vm
7  00:00:00:00:00:00:00:07 NewYork-ER7  Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60316 packet mininet-vm
8  00:00:00:00:00:00:00:08 NewYork-CR8  Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60312 packet mininet-vm
9  00:00:00:00:00:00:00:09 NewYork-CR9  Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60317 packet mininet-vm
10 00:00:00:00:00:00:00:0a NewYork-ER10 Thu Dec 04 16:45:05 PST 2014 127.0.0.1:60318 packet mininet-vm
mininet-vm# sh link 
#  Src Switch DPID                        Src Port Dst Switch DPID                        Dst Port Type
--|--------------------------------------|--------|--------------------------------------|--------|------
1  00:00:00:00:00:00:00:01 (SFO-ER1)      3        00:00:00:00:00:00:00:03 (SFO-CR3)      1        packet
2  00:00:00:00:00:00:00:01 (SFO-ER1)      4        00:00:00:00:00:00:00:03 (SFO-CR3)      4        packet
3  00:00:00:00:00:00:00:02 (SFO-CR2)      1        00:00:00:00:00:00:00:01 (SFO-ER1)      2        packet
4  00:00:00:00:00:00:00:02 (SFO-CR2)      3        00:00:00:00:00:00:00:05 (Dallas-CR5)   1        packet
5  00:00:00:00:00:00:00:02 (SFO-CR2)      4        00:00:00:00:00:00:00:09 (NewYork-CR9)  3        packet
6  00:00:00:00:00:00:00:02 (SFO-CR2)      5        00:00:00:00:00:00:00:08 (NewYork-CR8)  3        packet
7  00:00:00:00:00:00:00:02 (SFO-CR2)      6        00:00:00:00:00:00:00:08 (NewYork-CR8)  6        packet
8  00:00:00:00:00:00:00:03 (SFO-CR3)      2        00:00:00:00:00:00:00:02 (SFO-CR2)      2        packet
9  00:00:00:00:00:00:00:03 (SFO-CR3)      3        00:00:00:00:00:00:00:04 (Dallas-CR4)   1        packet
10 00:00:00:00:00:00:00:04 (Dallas-CR4)   2        00:00:00:00:00:00:00:05 (Dallas-CR5)   2        packet
11 00:00:00:00:00:00:00:05 (Dallas-CR5)   4        00:00:00:00:00:00:00:08 (NewYork-CR8)  4        packet
12 00:00:00:00:00:00:00:05 (Dallas-CR5)   5        00:00:00:00:00:00:00:09 (NewYork-CR9)  5        packet
13 00:00:00:00:00:00:00:06 (Dallas-ER6)   2        00:00:00:00:00:00:00:04 (Dallas-CR4)   3        packet
14 00:00:00:00:00:00:00:06 (Dallas-ER6)   3        00:00:00:00:00:00:00:05 (Dallas-CR5)   3        packet
15 00:00:00:00:00:00:00:08 (NewYork-CR8)  1        00:00:00:00:00:00:00:07 (NewYork-ER7)  2        packet
16 00:00:00:00:00:00:00:08 (NewYork-CR8)  2        00:00:00:00:00:00:00:09 (NewYork-CR9)  1        packet
17 00:00:00:00:00:00:00:08 (NewYork-CR8)  5        00:00:00:00:00:00:00:0a (NewYork-ER10) 3        packet
18 00:00:00:00:00:00:00:09 (NewYork-CR9)  4        00:00:00:00:00:00:00:07 (NewYork-ER7)  3        packet
19 00:00:00:00:00:00:00:0a (NewYork-ER10) 2        00:00:00:00:00:00:00:09 (NewYork-CR9)  2        packet

Test connections in mininet

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mininet> pingall
*** Ping: testing ping reachability
h1 -> h2 h3 h4 
h2 -> h1 h3 h4 
h3 -> h1 h2 h4 
h4 -> h1 h2 h3 
*** Results: 0% dropped (12/12 received)

Done. Here are some things you could do next:

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