Практичные инструменты для системных, сетевых, security- и operations-администраторов.

NET

Сетевой стол

Адресация, DNS, порты и тихая арифметика пакетов. Сначала калькуляторы; компактные справочники.

265–288 / 1037

VoIP Bandwidth Calculator

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Bandwidth per call by codec and overhead. The result stays on this page.

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VoIP MOS Estimator

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Estimate MOS from latency, jitter and loss. The result stays on this page.

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Erlang B Calculator

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Erlang B Calculator. Trunks needed for a grade of service. The result stays on this page.

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Erlang C Calculator

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Erlang C Calculator. Call-centre agents and wait times. The result stays on this page.

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SIP Trunk Sizing Calculator

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Concurrent calls and bandwidth for SIP trunks. The result stays on this page.

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Video Conferencing Bandwidth Calculator

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Video Conferencing Bandwidth Calculator. Bandwidth for Teams/Zoom/Webex users. The result stays on this page.

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Streaming Bandwidth Calculator

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Streaming Bandwidth Calculator. Bandwidth for live/VOD streams. The result stays on this page.

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Replication Bandwidth Calculator

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Bandwidth needed to replicate data in a window. The result stays on this page.

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Internet Link Sizing Calculator

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Internet Link Sizing Calculator. Size internet link by users and apps. The result stays on this page.

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Link Utilization Calculator

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Utilization % from traffic and capacity. The result stays on this page.

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95th Percentile Calculator

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95th Percentile Calculator. Burstable billing from samples. The result stays on this page.

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Packets per Second Calculator

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Packets per Second Calculator. PPS from bandwidth and packet size. The result stays on this page.

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Protocol Overhead Calculator

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Overhead of Ethernet/IP/TCP/UDP headers. The result stays on this page.

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QoS Bandwidth Allocation Planner

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QoS Bandwidth Allocation Planner. Allocate bandwidth % per class. The result stays on this page.

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Traffic Policing & Shaping Calculator

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Traffic Policing & Shaping Calculator. CIR, Bc, Be and Tc calculations. The result stays on this page.

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Network Capacity Forecast

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Network Capacity Forecast. Forecast when links hit capacity. The result stays on this page.

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Network Availability Calculator

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Availability for serial/parallel components. The result stays on this page.

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Fiber Loss Budget Calculator

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Link loss from length, connectors and splices. The result stays on this page.

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Fiber Attenuation Calculator

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Attenuation by wavelength and fiber type. The result stays on this page.

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Optical Power Budget Calculator

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TX/RX power and margin for transceivers. The result stays on this page.

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Transceiver Compatibility Finder

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Find compatible SFP/QSFP for switch models. The result stays on this page.

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Transceiver Type Reference

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SFP, SFP+, SFP28, QSFP28, QSFP-DD, OSFP specs. The result stays on this page.

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Fiber Type Selector

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Choose SMF/MMF and OM/OS grade by distance and speed. The result stays on this page.

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Ethernet Cable Category Selector

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Ethernet Cable Category Selector. Cat5e–Cat8 by speed and distance. The result stays on this page.

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