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Developer's Description

A Calculator for Packets

Ridding the world of uncalculated packets, one engineer at a time.

PacketCalc answers questions like:

- What size payload does a 128 byte ethernet frame carry?

- My work VPN allows only 512 byte packets. How long will it take to upload a 5GB file over IPv4 + TCP (assuming a good connection)?

- Our new data center deployed a 100Gb/s IPv6 fabric with top of rack switch support for VXLAN (IPv6 VTEPs). Our fabric MTU is 9216 bytes, but BULK class of service is throttled to 70%. What's the maximum throughout we can achieve in BULK tagged IPv4 UDP packets sent over this fabric?


- VXLAN, 802.1Q, IPv4, IPv6, TCP, UDP

- All RFC2544 frame sizes, plus common Jumbo sizes

- Frame Duration

- Percent Throughput, Overhead, Load

- Toggle between L1 and L2 values

- Adjustable IFG, including easy selection of Standard and IEEE MIN (based on media speed)

- Adjustable MTU

- Percent Load adjustments in 1000ths of a percent of line rate

- Media Speed adjustments include all popular ethernet speeds

- Frame Rate in Frames per Second

- Export all internal values to Text, Soulver, and JSON using the standard iOS Share Sheet

- Tap any label in the UI for inline help on that item

- Tap the Headers display to toggle Full Screen Headers view

- Help Tab includes more extensive help

- iOS Dark and Light mode

- iPad Multi-Window

- iPad SplitView and SlideOver

- Honors iOS System Font Size

- Dynamic Font Size adjustment

- Hide values that you rarely use (Tile Show / Hide state is saved across App launches)

- Written entirely in Swift and SwiftUI

- Made with Aloha on the Big Island

Full Specifications

What's new in version 2020.7(3)


Release July 30, 2020
Date Added July 30, 2020
Version 2020.7(3)

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 13.4 or later. Compatible with iPhone, iPad, and iPod touch.


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