Author name: Andrew Walding

Andrew Walding is the founder and president of CellStream, Inc., bringing more than 30 years of experience in telecommunications, broadband networking, Internet technologies, and technical education. His expertise spans network engineering, wireless and wireline communications, packet analysis, network operations, emerging technologies, and the design and delivery of advanced technical training programs. A Cisco-certified professional, IPv6-certified specialist, and CBRS Certified Professional Installer (CPI), he helps organizations and technology professionals understand, deploy, troubleshoot, and optimize modern communications networks.

What does the BGP Next-Hop-Self Command Actually do?

Post Views: 2,285 I got this question the other day: “What does the BGP Next-Hop-Self command actually do?” It is a great question that I tried to answer in a brief description without success, and actually repeated my answer several times.  It was clear to me that my answer was not being understood in terms

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Seven Awesome Linux Terminal Utilities for Everyone

Post Views: 3,052 If you are a Linux user, you know how important the Terminal is to your compute world.  Here are Seven Awesome Linux Terminal Utilities for Everyone. Now there are a bunch of different Terminals in Linux, this article is not about that, but I like Tilix the best: sudo apt install tilix

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How do I install / upgrade Wireshark in Ubuntu Linux?

Post Views: 3,708 How do I install / upgrade Wireshark in Ubuntu Linux?  First things first – the Wireshark downloads page is here: https://www.wireshark.org/download.html I know I have put the answer to this in other articles over the years (like this one), but I think it is appropriate to answer the question directly and specifically.

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CSI-HO-020-M – Wireshark QUIC Analysis in a Day – 1 Day

Post Views: 13,924 CellStream, Inc. – Telecom Consulting and Training! 1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students are saying about this class:wireshark “[The instructor] explains things in a way that any of us can understand.” “Seeing scenarios

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CSI-HO-028-C – BGP Routing in a Day – 1 Day

Post Views: 21,695    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students   What Students are Saying About this Class: “[Instructor] covered the information incredibly well and all

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CSI-HO-028-B – OSPF Routing in a Day – 1 Day

Post Views: 22,246 CellStream, Inc. – Telecom Consulting and Training!  1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students are Saying About this Class: “[Instructor] covered the information incredibly well and all of it was applicable to my job.

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CSI-HO-016-D – IPv6 in a Day – 1 Day

Post Views: 11,842    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students say about this course: “Like how the instructor provided context and “why” behind the way

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CSI-HO-020-J – Wireshark TCP Analysis in a Day – 1 Day

Post Views: 14,020 CellStream, Inc. – Telecom Consulting and Training!  1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students are saying about this class: “[The instructor] explains things in a way that any of us can understand.” “Seeing scenarios

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CSI-HO-020-I – Wireshark Wi-Fi Analysis in a Day – 1 Day

Post Views: 14,722    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students are saying about this class: “[The instructor] explains things in a way that any

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CSI-HO-020-H – Wireshark IPv6 Analysis in a Day – 1 Day

Post Views: 14,045    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 8 students – Maximum 16 students What Students are saying about this class: “[The instructor] explains things in a way that any

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