The advantages of SDN for VoIP

  • Software Defined Networking (SDN) is changing the way networks are managed and designed. In this article, we take a look at how an SDN approach can be of great benefit to VoIP and video telephony deployments in particular.

    Quick overview of SDN

    SDN represents a major paradigm shift in the way networks are designed and administered. As we noted in a previous article, in an SDN deployment, individual network devices are not configured independently, but are simply added to the network and are managed from a central location.

    SDN Business Advantages

    Not only is the network managed centrally, but a network automation capability allows various parameters to be adjusted dynamically based on particular changes in network behavior. The powerful flexibility that SDN offers is ideal for the specific requirements of both voice and video systems.

    Before continuing, it should be made clear that SDN is not for everyone. SDN is of no benefit to most small-to-medium-sized businesses, and may not be cost effective for certain medium-to-large businesses. In order for SDN to be a valuable asset, the organization’s network must be large enough to warrant it, and it must be running applications that can benefit from it. For the former, an appropriate cost analysis should be conducted to determine SDN’s viability. VoIP and video telephony are applications that can benefit greatly from SDN. The following are the most lauded advantages that SDN technology provides for VoIP deployments.