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===================================
Testing OF-config support with LINC
===================================
This page describes how to setup LINC and test Ryu OF-config with it.
The procedure is as follows.
Although all the procedure is written for reader's convenience,
please refer to LINC document for latest informations of LINC.
https://github.com/FlowForwarding/LINC-Switch
The test procedure
* install Erlang environment
* build LINC
* configure LINC switch
* setup for LINC
* run LINC switch
* run Ryu test_of_config app
For getting/installing Ryu itself, please refer to https://ryu-sdn.org/
Install Erlang environment
==========================
Since LINC is written in Erlang, you need to install Erlang execution
environment. Required version is R15B+.
The easiest way is to use binary package from
https://www.erlang-solutions.com/downloads/download-erlang-otp
The distribution may also provide Erlang package.
build LINC
==========
install necessary packages for build
------------------------------------
install necessary build tools
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
On Ubuntu::
# apt-get install git-core bridge-utils libpcap0.8 libpcap-dev libcap2-bin uml-utilities
On RedHat/CentOS::
# yum install git sudo bridge-utils libpcap libpcap-devel libcap tunctl
Note that on RedHat/CentOS 5.x you need a newer version of libpcap::
# yum erase libpcap libpcap-devel
# yum install flex byacc
# wget http://www.tcpdump.org/release/libpcap-1.2.1.tar.gz
# tar xzf libpcap-1.2.1.tar.gz
# cd libpcap-1.2.1
# ./configure
# make && make install
get LINC repo and built
^^^^^^^^^^^^^^^^^^^^^^^
Clone LINC repo::
% git clone git://github.com/FlowForwarding/LINC-Switch.git
Then compile everything::
% cd LINC-Switch
% make
.. NOTE::
At the time of this writing, test_of_config fails due to a bug of LINC. You can try this test with LINC which is built by the following methods.
::
% cd LINC-Switch
% make
% cd deps/of_config
% git reset --hard f772af4b765984381ad024ca8e5b5b8c54362638
% cd ../..
% make offline
Setup LINC
==========
edit LINC switch configuration file. ``rel/linc/releases/0.1/sys.config``
Here is the sample sys.config for test_of_config.py to run.
::
[{linc,
[{of_config,enabled},
{capable_switch_ports,
[{port,1,[{interface,"linc-port"}]},
{port,2,[{interface,"linc-port2"}]},
{port,3,[{interface,"linc-port3"}]},
{port,4,[{interface,"linc-port4"}]}]},
{capable_switch_queues,
[
{queue,991,[{min_rate,10},{max_rate,120}]},
{queue,992,[{min_rate,10},{max_rate,130}]},
{queue,993,[{min_rate,200},{max_rate,300}]},
{queue,994,[{min_rate,400},{max_rate,900}]}
]},
{logical_switches,
[{switch,0,
[{backend,linc_us4},
{controllers,[{"Switch0-Default-Controller","127.0.0.1",6633,tcp}]},
{controllers_listener,{"127.0.0.1",9998,tcp}},
{queues_status,enabled},
{ports,[{port,1,{queues,[]}},{port,2,{queues,[991,992]}}]}]}
,
{switch,7,
[{backend,linc_us3},
{controllers,[{"Switch7-Controller","127.0.0.1",6633,tcp}]},
{controllers_listener,disabled},
{queues_status,enabled},
{ports,[{port,4,{queues,[]}},{port,3,{queues,[993,994]}}]}]}
]}]},
{enetconf,
[{capabilities,
[{base,{1,0}},
{base,{1,1}},
{startup,{1,0}},
{'writable-running',{1,0}}]},
{callback_module,linc_ofconfig},
{sshd_ip,{127,0,0,1}},
{sshd_port,1830},
{sshd_user_passwords,[{"linc","linc"}]}]},
{lager,
[{handlers,
[{lager_console_backend,debug},
{lager_file_backend,
[{"log/error.log",error,10485760,"$D0",5},
{"log/console.log",info,10485760,"$D0",5}]}]}]},
{sasl,
[{sasl_error_logger,{file,"log/sasl-error.log"}},
{errlog_type,error},
{error_logger_mf_dir,"log/sasl"},
{error_logger_mf_maxbytes,10485760},
{error_logger_mf_maxfiles,5}]},
{sync,[{excluded_modules,[procket]}]}].
setup for LINC
==============
As the above sys.config requires some network interface, create them::
# ip link add linc-port type veth peer name linc-port-peer
# ip link set linc-port up
# ip link add linc-port2 type veth peer name linc-port-peer2
# ip link set linc-port2 up
# ip link add linc-port3 type veth peer name linc-port-peer3
# ip link set linc-port3 up
# ip link add linc-port4 type veth peer name linc-port-peer4
# ip link set linc-port4 up
After stopping LINC, those created interfaces can be deleted::
# ip link delete linc-port
# ip link delete linc-port2
# ip link delete linc-port3
# ip link delete linc-port4
Starting LINC OpenFlow switch
=============================
Then run LINC::
# rel/linc/bin/linc console
Run Ryu test_of_config app
==========================
Run test_of_config app::
# ryu-manager --verbose ryu.tests.integrated.test_of_config ryu.app.rest
If you don't install ryu and are working in the git repo directly::
# PYTHONPATH=. ./bin/ryu-manager --verbose ryu.tests.integrated.test_of_config ryu.app.rest
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