Vyatta NOS documentation

Learn how to install, configure, and operate Vyatta Network Operating System (Vyatta NOS), which helps to drive our virtual networking and physical platforms portfolio.

Advantages of BFD

BFD was devised as an fault-detection mechanism because most modern routing protocols cannot detect failures in milliseconds (ms).

BFD has some other advantages as listed here:
  • BFD is not tied to any particular routing protocol; it can be used as a generic and consistent failure-detection mechanism for all kinds of routing protocols.
  • The periodic transmission and reception of BFD packets works from the data plane. It is less CPU intensive than routing protocols that exist only on the control plane.
  • The timing of the BFD control packets can be adjusted dynamically to avoid the pitfalls of false failure messages.