THE FEUTEX TOOLKIT

Packet Train Pipeline Completion

Estimate when the last packet clears a store-and-forward pipeline.

Networking workspace● Runs in your browser

01 Your input

Equal packet sizebytesPacket countLink countEqual link ratebit/sTotal propagation delays

02 Your result

View or copy raw result data

Result data

Formulalast=(hops+packets−1)packetBits/rate+propagation

Sources and model references

https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/5125-delay-details.html

Worked example

Inputs

Equal packet size: 1000 bytes
Packet count: 100
Link count: 4
Equal link rate: 10000000 bit/s
Total propagation delay: 0.01 s

Expected results

First-packet arrival: 0.0132 s
Last-packet arrival: 0.0924 s

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

Enter the labeled inputs in the indicated units.
Calculate and compare every output against the stated model assumptions.

Try this example

{
  "bytes": 1000,
  "packets": 100,
  "hops": 4,
  "rate": 10000000,
  "prop": 0.01
}

Accuracy and scope

Identical packets and equal-capacity links; no contention or per-packet processing. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.