Post Views: 5,204 What exactly is the purpose of the IP ID field? This is actually a great question. While many have tried to answer the question in various articles on the Internet, I thought the question deserved a clear answer to the question. RFC 6864 updated RFC’s 791, 1122, and 2003 to clarify the […]
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Post Views: 1,490 We are proud to be, or have been, members and/or work closely with the following Telephone/Broadband Associations: Telephone Association of New England
Telephone/Broadband Association Memberships Read More »
Post Views: 1,775 This question (really two questions) has been popping up quite a bit lately. Let me see if I can explain. First, let’s define what SD-WAN is. SD-WAN leverages the SDN concept of separating the control plane from the data plane and creating a controller running software that can enact control and policies
What is SD-WAN? Does it replace MPLS? Read More »
Post Views: 6,369 If you have been living in a cave or an island or a mountainside somewhere and have not heard, the new weapon of choice is cyber-security based. Attacking a company by wiping out it’s databases and computer files and/or spreading a virus and/or creating malware seems to be the most lethal and
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Post Views: 1,500 That’s right! ARIN formally announced today that IPv4 Adresses are gone – gone – gone in North America: That means that everyone is down to whatever they have. It also means that if your organization is not prepped to convert to IPv6 with a solid plan, it ought to be! Plus you
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Post Views: 12,797 CellStream, Inc. – Telecom Consulting and Training! 2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students Course Description: As more and more networks undertake the Internet Protocol Version 6 (IPv6), details of implementation are vital to anyone who
CSI-HO-018 – Hands On Advanced IPv6 Read More »
Post Views: 1,304 For those of you who run GNS3 and/or Virtual Box or VMware and would like to have a free legitimate Windows image, Microsoft Internet Explorer team has provided an answer! Did I mention it is free? Don’t believe me? Go here and look. You can download different versions of Windows with different
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Post Views: 1,370 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 When using Wireshark, on some computers, the number of interfaces present due to things like virtualization and other configurations can be overwhelming. Some times, like when we
Controlling Displayed Network Interfaces in Wireshark Read More »
Post Views: 1,535 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 A common question I get is how can I set up a custom local name resolution file for IP and MAC addresses in Wireshark. We discussed basic
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Post Views: 1,718 Many folks have heard about “Flipping the Classroom”. The Internet and the online learning tools are opening new doors to traditional training and teaching models. We have leveraged these same tools and have redefined the traditional certification training model – we call it “Flipping the Certification Model”. Let’s start with what
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Post Views: 1,227 This is a great question, and there is a building pile of learning SDN courses out there. Perhaps the most technical one we found, we loved, and thanks to the great folks at Georgia Tech, the lectures were placed in the public domain. We assembled those video lectures and added our own
Where can I learn SDN? Read More »
Post Views: 2,419 Hi Everyone! If you support MPLS operations in your network, then you need to have an MPLS profile for Wireshark. In this case, we have an LDP profile for you to use. This is great for fundamental MPLS operations involving LDP. As with any Profile for Wireshark, to add this profile, within
Basic MPLS LDP Profile for Wireshark Read More »
Post Views: 1,241 What I have always loved about technology is that what we take as given is not necessarily going to be a given in 3 or 6 or 12 months time. A great example of this is the constant evolution of Data Center technology. The most incredible growth and change has happened in
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Post Views: 3,319 Welcome to our Cisco IOS Classic Command Cheat Sheet! Cisco switches and routers use the Internetwork Operating System (IOS), which configures and controls the device’s performance and behavior. Cisco’s IOS defines an interface called the Command Line Interface (CLI), which enables administrators to enter commands into a terminal emulation program. The CLI
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Post Views: 1,528 We are always adding to, and updating the technical “how to’s” contained here. When it comes to configuring a new Cisco router, much of the configuration depends on what type of router it is as well as the purpose it will serve. However, there are certain things you should configure on every
Top 10 Cisco IOS Classic Commands Read More »
