mrmicks / sflow

parses sflow samples and sends it to logstash

Sflow

Tiny sflow collector and parser script based on eventmachine. It listens for sflow v5 samples, parses them and sends it to logstash.

Installation

Clone this repository

$ git clone http://github.com/netways/sflow

Change directory

$ cd sflow

Install dependencies using bundler

$ bundle install

Configure your logstash endpoint

$ vi ./etc/config.yaml

And then execute:

$ bundle exec ./bin/sflow.rb

Logstash Configuration

A complete logstash installation is a prerequisite.

For getting the parsed sflow-packets as JSON via UDP into logstash you have to configure a input, filter and a output accordingly:

input {
 udp {
  port => 6543
  type => "sflow"
  codec => 'json'
 }
}

filter {
 json {
  source => "message"
  type => "json"
 }
}

output {
 elasticsearch_http {
  workers => 8
  host => "elasticsearch.host"
 }
}

Kibana

You can create your very own kibana dashboard for viewing the information and graphs you are interested in. For a quick start you'll find a dashboard in the misc folder, which can be imported via the kibana webinterface.

Contributing

1. Fork it ( http://github.com/netways/sflow/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request