One of the largest beverages company in the world, with around 45 manufacturing locations in India
The need for SD-WAN
The WAN connectivity was not reliable at the sites – and sometimes MPLS was not even feasible in remote locations where the manufacturing plants are located.
The turnaround time for fixing the problem over MPLS backbone was too long and disrupted supply chain for the company.
Internet connectivity at most of the plant locations was easily available and was desired due to cloud applications such as O365; and of course, was also lucrative because of cost savings involved.
Specific applications and traffic streams such as CCTV were considered critical and needed backup over the WAN – this called for the ability to steer the traffic based on the application.
The SD-WAN solution was implemented, but its advantages were not realized immediately due to the following factors:
The routing at the central datacenter was complex and resulted in asymmetric traffic flows resulting in poor user experience. It also resulted in partial connectivity in case of blackouts / brownouts.
The unreliable overlay due to asymmetric routing resulted in inefficient use of hybrid links (Internet and MPLS) at the remote sites.
The complete network infrastructure was mapped to specific VLANs locally at the sites, designed for the segmentation. However, over the SD-WAN network, this segmentation was not achieved – due to incorrect configurations.
The Application Aware Routing (AAR) was not being utilized optimally.
The IT staff was lacking the skill-set required to completely adopt and integrate the SD-WAN setup.