Mininet + Ryu + Faucet + Gauge + Influxdb

First, to install faucet proceed to download it:

pip install https://pypi.python.org/packages/a3/5a/197046b6fbad2f129e108358d7ba9674ebae638a227e6a1680cd77c7bd13/ryu-faucet-1.1.tar.gz

or from the github:

git clone https://github.com/onfsdn/faucet.git

I had a problem to run gauge with this installer (maybe dependencies or something else). When I run gauge I got this error:

raise SystemError('__init__ called too many times')
SystemError: __init__ called too many times

If you have the same issue reported as #19 or you want ot avoid it, they recommend to download the ryu-faucet VM to work on it:

https://susestudio.com/a/ENQFFD/ryu-faucet/download/vmx

The user is root and password is faucet
I prefer work with byobu, to manage a lot tabs. To install on the VM just run:

zypper install byobu

If you try to run the ./test_config.py including in the faucet folder, you will see the following error:

Traceback (most recent call last):
  File "./test_config.py", line 29, in <module>
    from config_parser import dp_parser, watcher_parser
  File "/root/faucet/src/ryu_faucet/org/onfsdn/faucet/config_parser.py", line 21, in <module>
    from dp import DP
  File "/root/faucet/src/ryu_faucet/org/onfsdn/faucet/dp.py", line 20, in <module>
    import networkx
ImportError: No module named networkx

To fix it, install networkx

pip install networkx

Now, go to /etc/ryu/faucet folder. Here you must have faucet.yaml and gauge.yaml

My faucet.yaml content is a extract from the shown in sdn-workshop:

dp_id: 0x0000000000000001   # The id of the datapath to be controlled
name: "test-faucet-1" # The name of the datapath for use with logging
description: "Initial Test Faucet"    # Purely informational
hardware: "Open_vSwitch"  # used to determine which valve implementation to use
interfaces:
    1:
        native_vlan: 100
        name: "port1"   # name for this port, used for logging/monitoring
        description: "Port 1"    # informational
    2:
        native_vlan: 100
        name: "port2"
        description: "Port 2"
vlans:
    100:
        description: "Test vlan" # informational
        name: "test_vlan"  # used for logging/monitoring
        max_hosts: 3 # Maxium of 3 hosts can go on this VLAN 

My gauge.yaml configuration is:

faucet_configs:
    - '/etc/ryu/faucet/faucet.yaml'
watchers:
    port_stats_poller:
        type: 'port_stats'
        dps: ['test-faucet-1']
        interval: 10
        db: 'influx'
dbs:
    influx:
        type: 'influx'
        influx_db: 'faucet'
        influx_host: 'localhost'
        influx_port: 8086
        influx_user: 'faucet'
        influx_pwd: ''
        influx_timeout: 10

First, run ryu-manager with faucet app:

ryu-manager --ofp-tcp-listen-port=6633 faucet/src/ryu_faucet/org/onfsdn/faucet/faucet.py ryu.app.simple_switch_13 ryu.app.ofctl_rest

To run gauge as a second controller, with a different port, you must run the following code:

ryu-manager --verbose  --ofp-tcp-listen-port=6663 /root/faucet/src/ryu_faucet/org/onfsdn/faucet/gauge.py

Now, run mininet on other machine (mininet doesn't have an installer for suse) and connect the first switch to both controllers:

sudo mn --mac --controller remote,ip=${FAUCET_IP}

sh ovs-vsctl set-controller s1 tcp:${FAUCET_IP}:6633 tcp:${FAUCET_IP}:6663

If you see /var/log/ryu/faucet/gauge.log content, you can see the following:

Oct 12 18:17:28 gauge.config WARNING  Version 1 config is UNSUPPORTED. Please move to version 2

Oct 12 18:17:28 gauge.config INFO     test-faucet-1

Oct 12 18:17:31 gauge  INFO     DPID 1 (0x1) up

To avoid the warning, change faucet.yaml to version 2 format:

version: 2
dps:
    test-faucet-1:
        dp_id: 0x0000000000000001   # The id of the datapath to be controlled
        description: "Initial Test Faucet"    # Purely informational
        hardware: "Open_vSwitch"  # used to determine which valve implementation to use
        interfaces:
            1:  
                native_vlan: 100 
                name: "port1"   # name for this port, used for logging/monitoring
                description: "Port 1"    # informational
            2:
                native_vlan: 100 
                name: "port2"
                description: "Port 2"
vlans:
    100:
        description: "Test vlan" # informational
        name: "test_vlan"  # used for logging/monitoring

        max_hosts: 3 # Maxium of 3 hosts can go on this VLAN

In your influxdb you can see these information:

If you don't have created previosly a faucet database, you'll see this errror in gauge:

Starting new HTTP connection (1): localhost 

"POST /write?db=faucet&precision=s HTTP/1.1" 404 53  

Killed 

You can checkout the same information from dump-flows throught this mininet command:

dpctl dump-flows -O OpenFlow13