Whether you augment existing MPLS with Internet, or replace it completely with low cost Internet and wireless links, Mosaic SoftWave SD-WAN can cost-effectively increase bandwidth, with no additional CapEx. Expanding bandwidth can be done in phases, to control costs, while managing capacity and performance on-demand.
Unfortunately, Internet and wireless links offer no quality guarantee, and are vulnerable to network delay, packet loss and jitter. Adding more links to an existing WAN creates additional complexity that can be disruptive in a large network with thousands of sites. For example, there are multiple negotiations for carrier contracts, and multiple invoices and payments to track. When maintenance problems arise, there are different support organizations from each service provider. These challenges can quickly undo the promise of SD-WAN easing complexity and lowering costs.
WAN Link Diversity With Greater Control
Adding new links brings many technical challenges, such as ensuring business-critical traffic stays on MPLS, identifying specific traffic for MPLS, and defining and applying rules, are some of the MPLS challenges. Ensuring non-critical traffic only goes over Internet links, and securing that traffic, when VPN is only on MPLS, are some of the challenges with Internet links.