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Network Infrastructure Magazine | Monday, April 15, 2024
The ultimate version of managed WAN is a network-as-a-service (NaaS) option, providing redundancy, connectivity choices, policy-driven route optimization, and traffic prioritization.
Fremont, CA: Software-defined WAN (SD-WAN) adoption has evolved due to customer preferences and innovations. Early adopters shifted to manage deployments, while AI, cloud, remote work, 5G, and wireless technologies have boosted adoption. Future trends include SD-WAN as a service, secure remote access, and AI integration.
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SD-WAN As a Service
SD-WAN migration is a trend where IT shops transition from self-managed WAN to managed options. Over half of SD-WAN deployments now involve managed options, with providers offering various options. The ultimate version of managed WAN is a network-as-a-service (NaaS) option, providing redundancy, connectivity choices, policy-driven route optimization, and traffic prioritization. This shift is expected to drive wider adoption of full NaaS offerings across industries and companies.
SD-WAN and Secure Remote Access
Secure remote access (SD-WAN) is gaining popularity due to cloud-like models and services, enabling users to connect to data centers or cloud providers. Trends in SD-WAN include combining it with security remote access technology and replacing it. However, organizations are realizing the cloud revolution reduces the value of traditional WAN traffic, leading to an increasing number of conventional WAN or SD-WAN users dropping at some or all sites.
AI In SD-WAN
AI is integrated into SD-WAN services, enhancing traffic path selection, policy definition, virtual assistant troubleshooting, and performance and security monitoring. The promise is that AI applications will simplify network management for enterprises and service providers. However, network professionals must assess the benefits of AI in their evaluation and deployment of services. Trust in AI in network automation is likely to decline more slowly than the availability of AI-powered SD-WANs.
SD-WAN and WWAN
Wireless links are expected to be used for last-mile connectivity in SD-WAN, as 4G and 5G services are integrated into branch network architectures. This combination offers path diversity, carrier diversity, initial connectivity, failover, replacement of low-speed copper links, and cost-effectiveness. SD-WAN allow policy-based control, traffic balancing across providers, and traffic conditioning to improve service quality. As 5G standalone services expand in the U.S., implementing WWAN with SD-WAN becomes easier and more attractive.
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