SDWAN - Deployments

  • In fact, SD-WAN has rapidly become the standard in enterprise deployments. An SD-WAN network can manage multiple types of connections, from LTE to broadband to multiprotocol label switching (MPLS) links. This means that traffic can be routed over the most cost-effective services, such as broadband. Services that require high quality, such as video or voice, or high security, with sensitive information, can still be routed over remaining MPLS lines, although many enterprises are freeing themselves of MPLS entirely. Because of this flexibility, SD-WANs can dramatically lessen the cost and minimise the complexity of traditional WANs

    However, the use of SD-WAN can also introduce points of failure to the branch office network. In traditional branch networking, often branch routers go for years without needing any intervention like configuration changes or firmware updates. But SD-WAN routers are more sophisticated and run a larger software stack. Firmware updates are common which means that there are many more opportunities for things to go wrong.

    Updates can leave organisations vulnerable to potential downtime ; and visibility blind spots can decrease the effectiveness of deployments, creating security challenges. In a SD-WAN network, for example, it is difficult for engineers using traditional network management tools to find unauthorised IoT devices. Added to this, the fact that SD-WAN doesn’t provide the visibility that organisations need to ensure these IT applications work as required, makes it equally difficult to monitor or troubleshoot sites and underlay networks. And while Cloud-Based Provisioning makes provisioning and configuration of an SD-WAN router easier, ultimately it is still in-band management, with all access to your network dependent on the same router.

    More info @ sd wans