What is difference – network automation / configuration management

There are lots of network automation tools around. But do you know what is the difference of each tools? I’m going to introduce what you can achieve with each tools.

First of all, I want to classify this network automation into three categories:

  1. Network Operation Automation … in the old days, you need to log in to each devices via ssh / telnet to change configuration. Tools in this category aims to automate these processes.
  2. Configuration Management … this includes not only version management(e.g. RANCID, Oxidized), but also host grouping(e.g. AS numbers)
  3. Service Management … In the previous categories, each configurations are stored separately. In this category, configuration is separated into each services(e.g. snmp-community, ntp server settings) rather than each device. You can control all the devices by services.
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