Simple Dashing job (and associated dash html) to display SNMP interface percentages
##Dependencies
Add it to dashing's gemfile:
gem 'snmp'
and run bundle install. Everything should work now :)
##Usage
To use this widget, copy snmp.rb into the /jobs directory. Add the html code from dash.erb into your dashboard file.
| <li data-row="1" data-col="1" data-sizex="1" data-sizey="1"> | |
| <div data-id="out-percent" data-view="Meter" data-title="Bandwidth Out %" data-min="0" data-max="100"></div> | |
| </li> | |
| <li data-row="1" data-col="1" data-sizex="1" data-sizey="1"> | |
| <div data-id="in-percent" data-view="Meter" data-title="Bandwidth In %" data-min="0" data-max="100"></div> | |
| </li> |
| require 'snmp' | |
| include SNMP | |
| @results = Array.new | |
| #Interface speed in mbps -- 10G | |
| interface_speed = 10000 | |
| def get_snmp | |
| #Interface index for WS-C3750E Te1/0/1 running Cisco IOS 15.0(2)SE4 | |
| interface_index = 10201 | |
| #SNMP OID values for IF-MIB::ifHCOutOctets and IF-MIB::ifHCInOctets | |
| lookup_values = [ "1.3.6.1.2.1.31.1.1.1.10", "1.3.6.1.2.1.31.1.1.1.6" ] | |
| Manager.open(:Host => 'localhost', :Version => :SNMPv2c, :Community => 'Public') do |manager| | |
| manager.walk(lookup_values) do |row| | |
| row.each { |vb| | |
| if vb.name.to_s == "IF-MIB::ifHCOutOctets.#{interface_index.to_s}" || vb.name.to_s == "IF-MIB::ifHCInOctets.#{interface_index.to_s}" | |
| @results.push(vb.value.to_i) | |
| end} | |
| end | |
| end | |
| end | |
| SCHEDULER.every '15s' do | |
| #Run get_snmp method to fetch the data | |
| get_snmp; sleep(10); get_snmp; out_delta = @results[2] - @results[0]; in_delta = @results[3] - @results[1]; | |
| #Calculate Mbps from fetched delta's | |
| out_mbps = out_delta / 10 * 8 / 1024 / 1024; in_mbps = in_delta / 10 * 8 / 1024 / 1024 ; | |
| #Calculate percentages from fetched delta's | |
| out_percent = out_mbps.to_f / interface_speed * 100; in_percent = in_mbps.to_f / interface_speed * 100; | |
| #Clear @results array brfore the next run | |
| @results.clear | |
| #Update widgets with percentage vaules, use out_mbps and in_mbps to sent data as Mbps | |
| send_event('out-percent', { value: out_percent.round(2) }) | |
| send_event('in-percent', { value: in_percent.round(2) }) | |
| end | |
HI, yes sorry, that's what I get for copy and past from the bash window :-|
all fixed now
Did your code at the end of line 17 get cut off by chance? Should this be the full line or is there more?