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Expert Advice: Benefits of Implementing Traffic Engineering by Using SDN In a Service Provider Network

By Erdem posted 09-07-2016 13:11


The following list includes a few of the benefits of implementing traffic engineering (TE) by using software-defined networking (SDN) in a service provider network:


  • Ability to obtain a centralized view of the entire TE tunnel structure, which makes it possible to place TE tunnels optimally rather than on the basis of a routing decision made by each router
  • Possibility of viewing a clear graphical representation of the TE tunnel structure in the network
  • Possibility to introduce additional criteria for TE tunnel placements---for example, path cost optimized, delay optimized, and monetary cost optimized
  • Possibility to introduce many additional TE tunnel services or features; for example:
    • Bandwidth calendaring (that is, you can reserve tunnel bandwidth in advance for a specific period of time) 
    • Diverse paths (to ensure that Stream Control Transmission Protocol [SCTP] multihoming paths are completely diverse)

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09-23-2016 22:33

Software-Defined Networking (SDN) is an umbrella concept that means many things —probably, too many things. Depending on whom you ask, you will hear a completely different definition of what SDN is. Every new solution is wrapped with the
SDN-ready mention and every new project is immediately overvalued when one says we will do it with SDN. 'smart route analytics tool' is a software that influences (defines) the network beahvior. So, it is SDN in that sense.


For example, PCE (Path Computation Element) can be seen as 'smart route analytics tool', or simply SDN Controller.

09-15-2016 11:42

@kszarkowicz would you like to comment on the above? Thanks.

09-15-2016 11:38

Yes agreed. But this can achieve from some smart route analytics tool as well, what additional SDN can help here?