4 posts categorized "Garland Technology" Feed

LMTV LIVE | How to Create Scalable Visibility in your Data Center (with Chris Bihary of Garland Technology)



YouTube LIVE event start time: Wednesday, July 19, 2017, 9:30 AM PST


Garland170x200How do you scale your network infrastructure to support multiple monitoring tools - while ensuring 100% packet capture?

This is the problem we have been hearing in the last few years. Data centers (D1 & D2) and enterprise networks have many challenges and two of the big ones are providing the IT department anytime access to full-duplex traffic, while guaranteeing full packet capture. Now layer on top of that a stack of 1G legacy monitoring tools in addition to the migration to 10G/40G and 100G speeds.

Join us for to learn about the latest visibility solution from Garland Technology’s as they introduce and demonstrate their Passive Fiber Modular Chassis System, a flexible, scalable and affordable high density solution for managing up to 24 links in a 1U box at network speeds of 1G/10G/40G/100G.


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Are My Packets Lying? – Four Things To Look For In Packet Traces (by Chris Greer)

Blog-Are my Packets Lying

Packets don’t lie – well, most of the time.

Packets will tell you the truth unless they have been captured incorrectly. In those cases, packets can tell bold-faced lies.

When digging through trace files, we can come upon symptoms in the packets that may raise an eyebrow. These are events that look strange on the surface and may even divert our troubleshooting focus for a time. In fact, some of these issues have misdirected engineers for hours, if not days, causing them to chase down issues and events that simply did not exist on the wire.

Most of these examples can be avoided simply by capturing the packets from a tap rather than on the machine generating the traffic. Come on, you know you have needed a tap for a while! Just spring for one and capture correctly next time. By the way, when you do make that decision, check out our buddies at Garland Technology. They make great stuff and they are nice people too!

  1. Very large packets

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Wireshark “Back to the Packet Trenches”: Live Free Webinar with Gerald Combs, Hansang Bae and Jasper Bongertz!

“Back to the Packet Trenches”: Live Webinars Hosted by: Hansang Bae, Riverbed CTO

First webinar is Thursday, March 9 from 9–10:30 a.m. Pacific/12–1:30 p.m. Eastern

Click here to register

Your host will be: Riverbed CTO Hansang Bae! As you probably know, Wireshark is a free and open source packet analyzer — a network troubleshooting tool that’s extremely popular. (Riverbed is Wireshark’s corporate host.)

Hansang, Gerald and Jasper, "the Wireshark Experts" have all been featured on WWW.Lovemytool.com and this series is not one you want to miss! We all need to get back to the basics and this will be an opportunity to see how three of the best use Wireshark to this end!

If you like In-Person training this trio and other Wireshark Network and Security Experts, like Laura Chappell, Betty DuBois  will be at Wireshark 2017 to be held June 19 through the 22nd at the Carnegie Mellon University in Pittsburgh, PA.

What if you cannot attend the U.S. Wireshark - Then check out SharkFest Europe, to be staged in Estoril, Portugal from November 6–10. Contact sharkfest@wireshark.org for conference details.

 

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POH: The Power Behind HDBaseT (by Mark Mullins)

POH: The Power Behind HDBaseT

Recently Fluke Networks posted a blog about HDBaseT that explained the application and how testing isn't really any different since standards-based Category 5e, 5 or 6A will support it. But maybe you've also heard about power over HDBaseT, or POH, and you're wondering how that differs from power over Ethernet (PoE).

An overview of HDBaseT and review of the evolution of power over Ethernet standards - HERE

A Little Bit More

Based on and backwards compatible with the IEEE 802.3at PoE Plus standard, POH delivers up to 100W of DC power over four pairs of Ethernet cable in conjunction with video signals to a distance of up to 100 meters (m) -- enough to power a typical LED TV.  In fact, Energy Star™ 6.1 restricts all TVs 60 inches or less to no more than 100W and that wattage is dropping.

POH technology opens the door for a cost-effective, easy way to deliver power to digital signage in airports, hotels, hospitals, cafeterias or any other environment in need of a video display--eliminating the need for AC power. This is especially appealing for applications near water where AC power presents a safety hazard. As you can imagine, customers across every market are therefore starting to demand POH.

One key difference compared to PoE is that instead of the powered device assuming worst-case cabling, POH allows the device itself to identify the cable length and draw more power as long as it does not exceed the 100W. That's pretty much where the difference ends (other than the capital "O" in the acronym).

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