Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & 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.