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.

CSI-OL-005 – Understanding IPv4 Addressing and Subnetting

Online Self Paced Courses / By

Post Views: 12,129 4-Hour Online, Self-Paced CourseFind the course here at our Online School IPv4 addressing remains one of the most important foundational skills in networking. Whether you are configuring a network, troubleshooting connectivity, interpreting routing information, or analyzing packets, you need to understand how IPv4 addresses and network masks work together. Understanding IPv4 Addressing

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CSI-OL-004 – Ethernet 101 – The Basics of Ethernet

Online Self Paced Courses / By

Post Views: 12,121     4-Hour Online, Self-Paced CourseYou will find the course here on our Online School Ethernet is the foundation of virtually every modern Local Area Network (LAN) and an essential technology for anyone working with broadband, enterprise networks, Wi-Fi, TCP/IP, or the Internet. Ethernet 101 – The Basics of Ethernet provides a

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CSI-OL-003 – Data Networking 101 – the packet networking essentials

Online Self Paced Courses / By

Post Views: 11,889 4-Hour Online, Self-Paced Course Click Here to go to our Online Courses category at our online school Understanding how data moves across a network is fundamental to working with Ethernet, TCP/IP, the Internet, and virtually every modern communications system. Data Networking 101 provides a clear introduction to the essential concepts behind packet-based

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CSI-OL-002 – Wireshark 101 Fundamentals

Online Self Paced Courses / By

Post Views: 11,954   4–6 Hour Online, Self-Paced CourseFind the course here at our Online School. Wireshark is one of the most powerful tools available for understanding what is actually happening on a network. Whether you are troubleshooting connectivity, investigating application performance, studying protocols, or learning how networks operate, packet analysis provides visibility that many

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CSI-SP-005 – Telecom 101

Service Provider/General Courses, Online Self Paced Courses / By

Post Views: 23,949 1-Day Instructor-Led CourseOn Site, Instructor LedAlso Available for Web-Based and Self-Paced Online Delivery as an 8 hour online class which must be completed in 30 days of beginning the course: click here to go to the Online Classes category at our online school. What Students are Saying about this class: Understanding the

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CSI-TB-002 – Virtualization Technology Overview/Briefing

Technology Overviews/Briefings / By

Post Views: 19,857    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Technology Overview/Briefing Available in either Web Based Delivery or On-Site Delivery Web Based Delivery: Max class size is 50 On Site Delivery: Max class size is 30     Course Description: Virtualization is the main technolopgy

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CSI-OL-008 – Getting to Know IPv6 – An Overview

Online Self Paced Courses / By

Post Views: 12,522 4-Hour Online, Self-Paced CourseFind the course here at our Online School IPv6 is no longer a technology for some distant future. It is an important part of today’s Internet, broadband, mobile, cloud, enterprise, and service-provider networks. Networking professionals increasingly need to understand IPv6 even when they are working in environments where IPv4

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Basic Wireshark Layer 3 Name Resolution

Networking and Computing Tips and Tricks / By

Post Views: 2,445 Check out these great references as well:  Our custom profiles repository for Wireshark  Our Udemy course on Wireshark   Our Udemy course on Wireless Packet capture Here is another Wireshark (TM) usage tip! Normally, and by default, Wireshark captures packets and displays IP addresses of the devices that are sources and destinations: During

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Wireshark Display Filter Cheat Sheet

Networking and Computing Tips and Tricks / By

Post Views: 2,077 Check out these great references as well:  Our custom profiles repository for Wireshark  Our Udemy course on Wireshark   Our Udemy course on Wireless Packet capture Calling all Wireshark Users! Feel free to download our Wireshark Display Filter Cheat Sheet right here! This cheat sheet organizes the display filters by Layer of the

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Why Use CellStream

CellStream Consulting / By

Post Views: 1,873 Why use CellStream for your technology, telecommunication and computing learning needs? The simple answer to that is three words: Value We aspire to provide industry leading learning experiences by offering the best materials, the best instructors, the best flexibility to meet your needs at the most competitive prices.  Because we are focused

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Where we are in the USF?

Frequently Asked Questions / By

Post Views: 1,896 In short, things are advancing quickly. Readers may also be interested in watching the Senate hearing on the subject. http://commerce.senate.gov/public/index.cfm?p=Hearings&ContentRecord_id=fc757765-b147-4f14-9e01-754721a5cffd&ContentType_id=14f995b9-dfa5-407a-9d35-56cc7152a7ed&Group_id=b06c39af-e033-4cba-9221-de668ca1978a   Further, I offer the following: Dear OPASTCO Member, Last week, the Federal Communications Commission (FCC) delivered its first Notice of Inquiry (NOI) and Notice of Proposed Rulemaking (NPRM) on the recommendations

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Where can I find the information on securing a home network?

Frequently Asked Questions / By

Post Views: 1,718 This procedure has moved from our Online School and is now described in an article at this site. We actually have several articles! Here is the original article: click here. Here is an article on securing Wi-Fi in your home or small business:  Click here to browse the article! I hope you

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Where can I find information on writing secure code?

Frequently Asked Questions / By

Post Views: 2,555 Great question received just before the holidays. The security of software is paramount, especially in any communications systems (routers, switches, servers).  We are all fimiliar with “patch Tuesdays” as efforts to thwart security holes in software are a constant. Surprisingly, few Computer Science majors include skills on secure coding.  Furthermore, policies and

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