What is SD-WAN?
Software-Defined Wide Area Networking (SD-WAN) is a modern networking solution that intelligently routes business internet traffic across multiple connections, such as fiber, cable, 5G/LTE, and cloud services. SD-WAN continuously monitors network performance and automatically selects the best available path to ensure optimal application performance, reliability, and uptime.
Unlike traditional networks that rely on a single internet connection, SD-WAN provides redundancy, failover protection, centralized management, and improved visibility into network performance across multiple locations.
Managed SD-WAN Solutions
Keep your business connected with intelligent SD-WAN solutions, internet failover, network monitoring, and proactive network management. TTI helps organizations maximize uptime, improve application performance, and maintain secure connectivity across offices, remote workers, and cloud environments.
Replace Costly MPLS with Flexible Internet Connections
SD-WAN lets businesses securely connect branch offices, remote employees, and cloud applications using almost any available internet connection.
Instead of paying for expensive private MPLS circuits, you can use business broadband, fiber, cable, and wireless service, often at a much lower monthly cost, while keeping the reliability and performance your business depends on.
Why Businesses Use SD-WAN
Modern businesses depend on cloud applications, remote workers, VoIP phone systems, and reliable internet connectivity. Even a brief outage can impact productivity, customer service, and revenue.
Internet Failover
Automatically switches to a secondary internet connection if the primary connection fails, minimizing downtime and keeping employees connected.
Multi-Location Connectivity
Connect headquarters, branch offices, remote workers, and cloud applications through a centralized network architecture.
Improved Application Performance
Prioritizes critical business applications such as Microsoft 365, VoIP phone systems, video conferencing, CRM platforms, and cloud services.
Business Continuity
Maintains connectivity during ISP outages, network disruptions, and other unexpected events.
Centralized Network Management
Monitor and manage all business locations from a single dashboard, simplifying troubleshooting and reducing IT complexity.
Enhanced Security
Securely connects offices, users, and cloud applications while providing visibility into network traffic and performance.
How TTI Helps
TTI designs, deploys, and manages SD-WAN solutions that improve network reliability, performance, and business continuity. Whether your organization operates from a single office or multiple locations across the country, we help ensure your employees, customers, and applications stay connected.
Key Benefits
- ✓ Automatic Internet Failover
- ✓ Multi-WAN Connectivity
- ✓ Cloud Application Optimization
- ✓ Network Monitoring & Alerting
- ✓ Remote Worker Connectivity
- ✓ Secure Site-to-Site Networking
- ✓ Centralized Management
- ✓ Improved Business Continuity
Cut Costs Without Losing Reliability
Case Study
The Challenge
A healthcare client with 7 locations, a headquarters and six smaller offices, was supporting 150 IP phones and workstations on a legacy network built on traditional MPLS circuits. Monthly network costs were high, and bandwidth was limited.
The legacy infrastructure restricted day-to-day operations due to rigid bandwidth caps:
• Primary Links: Limited to 40 Mbps dedicated fiber at the main sites, and just 20 Mbps fiber at the remaining offices.
• Secondary Links: Fragmented backup circuits using standard consumer-tier Comcast and Verizon FiOS lines.
The TTI Managed Solution
TTI designed and deployed a high-performance, highly resilient SD-WAN network, replacing the costly MPLS circuits:
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High-Capacity Routing & Connectivity: We upgraded the main sites with Gigabit-capable business routers configured for Dual-WAN Failover over high-speed, business-class FiOS and Comcast service. Branch offices were provisioned with 400 Mbps primary service backed by a 100 Mbps secondary connection.
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Cellular Integration: Branch offices were equipped with multi-carrier cellular hardware managed directly by TTI, adding a third layer of network redundancy.
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Peplink SpeedFusion Bonding: Peplink Balance 20X routers allowed TTI to bond separate internet connections into a single connection. SpeedFusion provides seamless failover designed to keep voice calls and active remote sessions connected during ISP disruptions.
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Secure vMPLS Overlay: To keep inter-office data and internal voice traffic encrypted, TTI deployed a secure virtual MPLS (vMPLS) overlay network across all seven locations.
The Results & Financial Impact
$52,200
3-Year Savings (7 Locations)
7 Sites
Moved Off MPLS
3 Layers
Of Connection Redundancy
- • Lower Monthly Costs: Replacing MPLS with business broadband and SD-WAN lowered recurring network costs, with savings of about $52,200 over three years across all seven locations.
- • More Bandwidth: Offices moved from 20 to 40 Mbps circuits to connections of 400 Mbps and up, with backup connections at every site.
- • Performance & Compliance Gains: The new network greatly reduced packet drops and jitter. Calls are now optimized for clear voice quality, protected against single-ISP outages, and designed to support the client's HIPAA compliance requirements.
SD-WAN is WAN VirtualizationIn the same way server virtualization abstracts the underlying physical hardware from the logical virtual servers that run on it, WAN virtualization allows a logical WAN connection (either to the Internet or between branch offices) to utilize multiple underlying connectivity technologies—such as xDSL, MPLS, cellular, and fiber—simultaneously. This connectivity is seamlessly presented to users and applications as a single, direct connection to the Internet or a secure site-to-site connection. |
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SD-WAN is IntelligentSD-WAN enabled networks are capable of continuously monitoring WAN health and connection quality, then automatically utilizing those measurements to make intelligent routing decisions for your real-time application traffic.
Best of all, once configured, all internal traffic management happens natively. Your network is dynamically governed by the automated software-defined rules set directly on the device—requiring absolutely zero human interaction or manual IT troubleshooting. |
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SD-WAN is Secure VPNBy utilizing encrypted VPN tunnels, branch offices gain secure, seamless local network access to critical cloud resources. SD-WAN dramatically increases the speed and affordability of these branch office networks by combining the total bandwidth of multiple disparate connections into a single cohesive, logical WAN pipe. Additionally, SD-WAN provides the intelligence to safely offload public Internet traffic at the network edge, maximizing overall performance and reducing unnecessary traffic strain sent through your core VPN. |
Explore potential benefits for your business
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Agility and Flexibility
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Application Performance
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SD-WAN FAQ
Can SD-WAN reduce Ethernet circuit costs?
In many cases, yes. SD-WAN can let businesses replace or supplement costly dedicated Ethernet circuits with broadband, fiber and LTE or 5G connections, which can lower monthly expenses.
What connection types does SD-WAN support?
SD-WAN can use MPLS, broadband, fiber and LTE or 5G connections, and chooses the best path for each application based on performance, cost and priority.
Is SD-WAN secure for business use?
SD-WAN uses encryption and centrally managed security policies to help protect traffic across your locations. TTI can pair it with firewall and managed security services for added protection.