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50 posts categorized "Protocol Analysis"

May 14, 2008

Rising Above ... Wireshark University (by Denny K Miu)

Welcome to another episode of “Rising Above … America TECH Heroes” showcasing individuals who choose to “rise above” all that life can throw at them and be successful in spite of all odds and adversities.

I write regularly about entrepreneurship (particularly survival skills needed for “bootstrapping” entrepreneurs) and I enjoy talking about determined and successful entrepreneurs (as we did with Cahaba Data). Today we are featuring Laura Chappell, Founder of Wireshark University.

Chappell_lauraWiresharkuI met Laura for the first time during the recent Sharkfest Conference. Laura and her colleagues (Betty DuBois and Tony Fortunato) were teaching a series of introductory and advanced courses on network monitoring and troubleshooting (the PowerPoint presentations can be downloaded here). Since then I have learned more about Laura and her company and come to respect her immensely for what she has accomplished and her reputation among her peers.

As I have discussed in the past, entrepreneurship is fundamentally about wealth creation, for ourselves and our family. Entrepreneurship is far from rocket science. As one of my former Board members once told me (who was an early investor of Sun Microsystems and now spend his retirement racing BMW's when he is not on his yacht), “If you could take something that is previously a hassle for someone and turn it into a routine, then you have a business. And if in addition, you could convince your customers that what you have created is so valuable to them that they are willing to pay you more than what it takes for you to deliver your creation, then you have a 'profitable' business.”

Too often, especially in the Silicon Valley, we forget this simple truth and entrepreneurs (especially first-time entrepreneurs) confuse valuation with value-building (with no shortage of misinformation and generalization from VC's and from the popular media). They mistakenly believe that success is about getting investment from investors as opposed to building a sustainable and viable business.

It is nice to see counter examples such as Laura who didn't wait for the cavalry but instead choose to lift themselves by their bootstraps. Laura's success is built entirely on her deep believe that business is about providing values to her customers and her community.

A lot has been written already about Laura Chappell including her bio, a short video showing her entertaining lecture on ways that one can be attacked through cyberspace (everything you want to know but afraid to ask), her famous book on Internet Safety for Kids, her own account on how she started Wireshark University with blessing from Gerald Combs (creator of Wireshark) and finally, and her very popular blog (A bit of humor, a bit of technology - 0x10 bits in all).

Recently, Laura also started her YouTube video series (Bitsplitters) with episodes on many technical issues including Trace Files Time Stamp, etc. Never one afraid to provide entertainment while educating, she recently posted some advises on how **not** to buy gifts for Mother's day. Having been married for twenty plus years, her advise came at a most opportune time for me. Enjoy.



May 06, 2008

Monitoring and Managing VoIP (by Charles Thompson)

Charles_thompsonNetworkinstruments_logoVendor Profile - Network Instruments provides in-depth network intelligence and continuous network availability through innovative analysis solutions. Enterprise network professionals depend on Network Instruments’ Observer product line for unparalleled network visibility to efficiently solve network problems and manage deployments. By combining a powerful management console with high-performance analysis appliances, Observer simplifies problem resolution and optimizes network and application performance. The company continues to lead the industry in ROI with its advanced Distributed Network Analysis (NI-DNA™) architecture, which successfully integrates comprehensive analysis functionality across heterogeneous networks through a single monitoring interface. Network Instruments is headquartered in Minneapolis with sales offices worldwide and distributors in over 50 countries.

Charles Thompson is the Manager of Sales Engineering for Network Instruments.


Voip


Overview

As with most new technologies, Voice over Internet Protocol (VoIP) brings new challenges along with the benefits. The main challenge is VoIP’s extreme sensitivity to delay and packet loss compared with other network applications such as web and e-mail services. A basic understanding of VoIP traffic and of the quality metrics provided by VoIP monitoring tools will help you keep your VoIP network running smoothly.

Continue reading "Monitoring and Managing VoIP (by Charles Thompson)" »

May 05, 2008

Network Intruments @ Interop Vegas 2008

interop_las_vegas


Networkinstruments_logoVendor Profile - Network Instruments provides in-depth network intelligence and continuous network availability through innovative analysis solutions. Enterprise network professionals depend on Network Instruments’ Observer product line for unparalleled network visibility to efficiently solve network problems and manage deployments. By combining a powerful management console with high-performance analysis appliances, Observer simplifies problem resolution and optimizes network and application performance. The company continues to lead the industry in ROI with its advanced Distributed Network Analysis (NI-DNA™) architecture, which successfully integrates comprehensive analysis functionality across heterogeneous networks through a single monitoring interface. Network Instruments is headquartered in Minneapolis with sales offices worldwide and distributors in over 50 countries.

Sam Wang is the Central Region Territory Manager for Network Instruments.



Continue reading other LoveMyTool “It's Show Time” posts »

April 25, 2008

OSTU - Quickstart Guide for Wireshark (by Tony Fortunato)

Tony_fortunatoThe_tech_firmInstructor Profile - Tony Fortunato is a Senior Network Specialist with experience in design, implementation, and troubleshooting of LAN/WAN/Wireless networks, desktops and servers since 1989. His background in financial networks includes design and implementation of trading floor networks. Tony has taught at local high schools, Colleges/Universities, Networld/Interop and many onsite private classroom settings to thousands of analysts. Tony is an authorized and certified Fluke Networks and Wireshark Instructor. His Pine Mountain Group CNA Level I and II certification demonstrates his vendor neutral approach to network design, support and implementations. Tony has architected, installed and supported various types of Residential Wireless High Speed as well as hundreds of WIFI hotspots. Tony uses a variety of technologies from Powerline, Wireless and wired technologies to find the most cost-efficient and reliable solution for his customers. Tony combines custom programs, open source and commercial software to ensure a simple support infrastructure.


YoutubeThe following presentation can also be viewed on YouTube.


Note: To view above presentation in full screen mode, click on "View" above which will take you to the Slideshare website, then click on "full" on lower right corner.


Continue viewing other LoveMyTool "Open Source Tools University (OSTU)" lectures »

April 24, 2008

Network Troubleshooting with Open Source Tools (by Mike Pennacchi)

Mike_pennacchiNetwork_protocol_specialists_2Instructor Profile - Mike Pennacchi is one of the world's leading experts on pinpointing the causes of network and application performance issues. Unlike most companies that only identify the cause, Mike’s company, Network Protocol Specialists in Seattle, Washington, works with companies to solve performance issues. When Mike is not analyzing networks, he can be found lecturing or offering training on the topic for Server and Network Admins. During November 2007, Mike was appointed as the Lead Network Engineer for InteropNet which is the mission critical show network for Interop New York 2007, leading a team of networking professionals, volunteers and vendors support personnel.


"Improve your network monitoring and analysis success potential! This is a must for every serious network manager, VERY COOL!"

-- Oldcommguy


InteropInterop is approaching rapidly and we are excited with the classes we will be presenting this year. In addition to our long running Ethernet and Application Analysis classes, we are teaching another class on how to use Open Source tools (GNU) that are free and readily available to help monitor, analyze and troubleshoot today’s complex networks.

This will be the second year that we are presenting this class in Las Vegas. Based on the success of last year, we have added a whole new dimension to help you take advantage of more powerful and dynamic tools.

“Don’t miss this class” says Oldcommguy!

The idea for a class on how to use Open Source Tools successfully came from our own consulting experiences where we find that many of the customers we have met are not employing any type of comprehensive network management solutions within their networks. Sadly, in many cases they are simply waiting for the users to notify them when problem occur.

While this reactive approach works, it does not help the credibility of the network department and their ability to detect problems and resolve them “before” they impact the business. We believe that it is possible to assemble a set of free tools that are readily available and could be easily deployed by anyone. In this year’s class, we will share our findings with you.

Continue reading "Network Troubleshooting with Open Source Tools (by Mike Pennacchi)" »

April 23, 2008

OSTU - Tutorial on SmokePing & Cacti (by Mike Pennacchi)

Mike_pennacchiNetwork_protocol_specialists_2Instructor Profile - Mike Pennacchi is one of the world's leading experts on pinpointing the causes of network and application performance issues. Unlike most companies that only identify the cause, Mike’s company, Network Protocol Specialists in Seattle, Washington, works with companies to solve performance issues. When Mike is not analyzing networks, he can be found lecturing or offering training on the topic for Server and Network Admins. During November 2007, Mike was appointed as the Lead Network Engineer for InteropNet which is the mission critical show network for Interop New York 2007, leading a team of networking professionals, volunteers and vendors support personnel.


YoutubeThe following presentation can also be viewed on YouTube.


Note: To view above presentation in full screen mode, click on "View" above which will take you to the Slideshare website, then click on "full" on lower right corner.


Continue viewing other LoveMyTool "Open Source Tools University (OSTU)" lectures »

April 14, 2008

Gerald Combs @ Sharkfest 2008

Sharkfestbanner


WiresharkEditor's Note - I have accomplished something that has never been accomplished in the past which is to get Gerald Combs to sit down, relax and talk about himself for 11 minutes and 27 seconds. For those who don't know Gerald, he is the creator (or what Gerald prefers to say, the lead developer) of Ethereal/Wireshark, the most widely used network analysis software, with about 300,000 unique downloads per month or 1.1 download every 10 seconds!!!

As far as I can tell, this is the first time that Gerald has appeared in an interview. And probably for millions who have downloaded his software and benefited from his creation for years, this is the first time that they are seeing him live. There is almost no personal information available on Gerald except for the following which is partly from Wikipedia.

Gerald Combs, a computer science graduate of the University of Missouri-Kansas City, is the creator and lead developer of Ethereal, now Wireshark, which was first released in 1998. Recently Wireshark was selected as the the winner of the 2007 BOSSIE (Best of Open Source Software) award for network protocol analysis. Combs worked for Network Integration Services (NIS) until mid 2006 when he moved to a new job at CACE Technologies. In June 2006, he created Wireshark from the Ethereal codebase ... In 2003, Gerald received the prestigious Alumni Achievement Award from his Alma mater.

In addition to this video, I have also uploaded a slightly edited Youtube version. Please feel free to visit and embed into your own blog and web pages. As I said at the end of the interview, all of us are grateful and appreciative of Gerald's technical contribution but also in awe of his integrity, humanity and generosity as a person. Let's make this the most popular Youtube video and bring visibility to our greater community.



Continue reading other LoveMyTool Sharkfest 2008 posts »

April 11, 2008

Scott Haugdahl @ Sharkfest 2008

Sharkfestbanner


BitcricketlogoVendor Profile - J. Scott Haugdahl is the founder and CTO of his new venture, Bitcricket. He was former Chief Technology Officer at WildPackets and holds a degree in Computer Science from the University of Minnesota, Institute of Technology. He has extensive experience in the network analysis industry in the areas of speaking, writing, competitive analysis, on-site training and network troubleshooting, and expert systems design and implementation. Industry vertical expertise include 802.11 wireless, VoIP, performance analysis and Apdex (Application Performance Index), and good old fashioned protocol analyzer detective work (including forensics). His past entrepreneur experience includes founding Net3 Group, where he wrote the industry’s first analyzer agnostic expert system. He continues writing his popular blog and can be reached by email at scott (at) bitcricket (dot) com.



Continue reading other LoveMyTool Sharkfest 2008 posts »

April 01, 2008

CACE Technologies @ Sharkfest 2008

Sharkfestbanner


Cace_logoVendor Profile - CACE (Creative, Advanced Communication Engineering) Technologies is dedicated to enhancing the Wireshark user experience. Our staff of accomplished computer scientists and engineers has created Wireshark®, the world’s most popular network analyzer, WinPcap™, the industry-standard open source packet capture library for Windows, and AirPcap™ Product Family 802.11 WLAN packet capture devices for Wireshark. Our collective experience and talents combine to offer exciting networking products as well as a broad range of engineering, development, and consulting services.

Dr. John Bruno is the Co-Founder and CEO of CACE Technologies and CACE is the sponsor/organizer of Sharkfest 2008.



Continue reading other LoveMyTool Sharkfest 2008 posts »

March 28, 2008

Fallon Clinic on Network Instruments

"I have been able to cut troubleshooting down from about five hours ... to merely minutes."

-- Hamid Ali, Network Engineer, Fallon Clinic


Fallon_clinicCustomer Profile - Founded in 1929 by Dr. John Fallon and a team of local physicians, Fallon Clinic was central Massachusetts’ first group practice. As one of the most dynamic and progressive health care organizations in the country today, Fallon Clinic continues to achieve some of the highest quality of care ratings in the country. They are leaders in health care delivery innovation, transforming patient care paradigms, and establishing a new “gold standard” in patient care service. With more than 250 physicians practicing in nearly 30 locations, Fallon Clinic provides comprehensive care for more than one million patient visits a year, and is the largest private, multi-specialty group in central Massachusetts.

Networkinstruments_logoVendor Profile - Network Instruments provides in-depth network intelligence and continuous network availability through innovative analysis solutions. Enterprise network professionals depend on Network Instruments’ Observer product line for unparalleled network visibility to efficiently solve network problems and manage deployments. By combining a powerful management console with high-performance analysis appliances, Observer simplifies problem resolution and optimizes network and application performance. The company continues to lead the industry in ROI with its advanced Distributed Network Analysis (NI-DNA™) architecture, which successfully integrates comprehensive analysis functionality across heterogeneous networks through a single monitoring interface. Network Instruments is headquartered in Minneapolis with sales offices worldwide and distributors in over 50 countries.


Network_instruments


Challenge

Fallon Clinic’s quality of service has close ties to its network health. If the network fails or slows down, customer service suffers. Patients don’t like to wait, so it’s important for Network Engineer Hamid Ali to stay on top of his network.

Fallon Clinic has more than 250 physicians across nearly 30 locations throughout Massachusetts. A total of 2,500 users depend on the network, which has its backbone at the West Boylston site. The core communicates with remote offices via point-to-point WAN links, and local networks are built using Fast Ethernet switches. Although the current network is exclusively wired, Fallon plans to implement wireless soon.

Ali previously used Network General’s Sniffer to monitor the local network. However, as the company grew, he needed greater WAN visibility. Purchasing another costly product from Network General to manage the WAN wasn’t an option. Even if he made the purchase, Sniffer wouldn’t provide the flexibility to analyze both the WAN and LAN simultaneously, from one console. This would mean having to choose whether to focus on the WAN or the LAN, and yet again having problems go undetected and undiagnosed until users complained.

Continue reading "Fallon Clinic on Network Instruments" »

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