EIGRP Feasibility Condition, Offset Lists, and Variance

This post and video lesson will help you fully understand EIGRP basics such as successor routes, feasible successors, EIGRP feasibility condition, variance for unequal cost multipathing, and more!

Hey hey! Today I made a video to keep from going quarantine crazy. Has the EIGRP feasibility condition ever confused you?

Have you ever wondered what the variance command is all about, or what a feasible successor is?

Well in this EIGRP Lesson we will discuss all of these things! First we go over some key EIGRP terms and then we have a lab exercise in using an offset list and variance command to implement unequal-cost multipathing.

To make the best use of this lesson, you should have a basic understanding of configuring EIGRP. This is great studying for CCNA, CNNP ENCOR / ENARSI.

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Automated Robocopy Backups With Email Notification

What happens is you schedule a task to run the first Robocopy script. Based on the error level output one of two things happen: a success or failure. If there is success you run one batch file, if it fails you run another.

The other week I was horsing around and came up with this method of backing up some files on Windows using Robocopy, and automatically sending an email of the results based on success or failure using Robocopy’s error level output codes.

There’s basically 3 parts that make this thing work:

  1. The Robocopy script or scripts
  2. Fail or Success send email script
  3. Powershell scripts to send the email based on success or failure

What happens is you schedule a task to run the first Robocopy script. Based on the error level output one of two things happen: a success or failure. If there is success you run one batch file, if it fails you run another.

That second batch file runs a PowerShell script that sends an email (saying success or fail in the subject) and attaches the Robocopy log.

Let’s dive in 🙂

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