Everything you wanted to know about NTP

Network Time Protocol (NTP) is a service that can be used to synchronize time on network connected devices.   Before we dive into what NTP is, we need to understand why we need accurate time. The obvious thing is network devices need an accurate clock.  Things like log files with the proper time stamp are important … Read more

From the archives – Evolution of a network guy part 4

In 2006 I was hired on part-time for Purdue University. My days would consist of mornings on Campus at Purdue doing I.T. support for the Agronomy Department and afternoons, evenings, and weekends doing support and build-outs for NDWave.  We were in the mode of dumping everything back into the company to get to a solid … Read more

Some WISP CPE grounding

A discussion which comes up over and over in the WISP space is grounding and proper installation of customer CPE. The folks at perfect-10 (https://www.perfect-10.tv/) were a vendor at #WISPAPALOOZA2018.  One of the best things I have seen them in a long time is the below photo they created. This is a great illustration of … Read more

Understanding Cisco Optics

This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more