VPN & SD-WAN Calculators
19 free vpn & sd-wan calculators in Networking.
- Deduplication Savings CalculatorCalculate the data reduction, bandwidth saved and transfer time cut by WAN deduplication and compression.
- Encapsulation Overhead CalculatorStack VLAN tags, GRE, VXLAN and IPsec to see total per-packet overhead, goodput and remaining MTU.
- Geneve Overhead CalculatorWork out Geneve encapsulation bytes, the resulting inner MTU and the goodput lost to option TLVs.
- Internet Breakout CalculatorCompare local internet breakout with hub backhaul to see the bandwidth saved at the data centre edge.
- Multi-WAN Capacity CalculatorAggregate up to three WAN circuits and check the capacity that survives the loss of the largest link.
- OpenVPN Performance CalculatorEstimate OpenVPN tunnel throughput and MTU from cipher choice, transport protocol and instance count.
- Overlay Network CalculatorCount tunnels in a mesh or hub-and-spoke overlay and work out the goodput left after encapsulation.
- Packet Scheduling CalculatorTurn scheduler weights into a real bandwidth share and estimate serialisation and queueing delay per class.
- Path Health Score CalculatorScore a WAN path out of 100 from latency, jitter, loss and delivered throughput, with an estimated MOS.
- QoS Bandwidth Allocation CalculatorSplit a link into voice, video, business and best-effort classes and check the 33% low-latency queue guideline.
- SD-WAN Link CalculatorSize the SD-WAN circuit for a branch from user count, concurrency, growth and overlay overhead.
- SD-WAN Path Selection CalculatorScore two SD-WAN paths on latency, jitter and loss to see which one the policy engine should prefer.
- Traffic Policing CalculatorSplit offered traffic into conforming, exceeding and violating rates for a two-rate three-colour policer.
- Traffic Shaping CalculatorCompute token-bucket shaper parameters — committed burst, excess burst and interval — from CIR and Tc.
- Tunnel MTU CalculatorDerive the inner MTU and TCP MSS clamp for any tunnel type from the underlay path MTU.
- VPN Bandwidth CalculatorSize the WAN circuit a remote-access or site-to-site VPN needs once encryption and encapsulation overhead is added.
- VPN Health Score CalculatorGrade a VPN tunnel out of 100 using uptime, rekey failures, latency, loss and delivered throughput.
- WAN Failover CalculatorAdd up BFD detection, routing convergence and application recovery to get real WAN failover time and downtime.
- WireGuard Throughput CalculatorEstimate WireGuard tunnel throughput from link rate, packet size and per-core crypto performance.