Category Archives: Tail-f

Netconf and Yang

Cisco’s acquisition of Tail-f prompted me to look deeper into what Tail-f does. That in-turn made me dig deeper into Netconf and Yang. Netconf is a device configuration and management protocol and Yang is a modeling language that’s used by Netconf. Yang modeling can also be used outside Netconf’s context. From looking at the history behind Netconf and Yang, I realized that Network management as a whole was a widely ignored topic for quite sometime. The current Network management techniques used by Operators seems to be very arcane and the recent SDN wave has triggered a renewed interest in simplifying Network management. In this blog, I will cover the following:

  • Shortcomings of SNMP.
  • Netconf and Yang overview with examples.
  • Comparison with Ovsdb and Openflow.
  • Opendaylight’s use of Yang model
  • Tail-f ┬áNCS system’s use of Netconf and Yang.

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