It was Inevitable…
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The post It was Inevitable… appeared first on Packet Pushers Podcast and was written by Russ White.
Show 186 – The Silicon Inside Your Network Device – Part 1
This is Part 1 in a special series looking at the inside of your network device. Although software will be at heart of network innovation, it will still run on hardware and it’s time to expose the internals of our network hardware and understand the hardware architecture inside a typical device. Many people are surprised […]
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The post Show 186 – The Silicon Inside Your Network Device – Part 1 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Why Internet Standards are Still Important
Vidya Narayana, in a piece at Gigaom, said recently: So, why did I actually stop contributing to standards definitions? The primary one is the fact that while the pace at which standards are written hasn’t changed in many years, the pace at which the real world adopts software has become orders of magnitude faster. Standards, unfortunately, […]
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HTIRW: Overview
Okay, so we all know some little slice or another of the Internet. But how do all these slices really fit together? How does each player in the system make money by getting your device to connect to someone else’s server to grab content (whether or not you just asked for it)? Let’s put it […]
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Twitter War !
Through a court-mandated decision, access to Twitter has officially been blocked across all of Turkey. Weather or not this was the right decision; it is evident that people are not happy about it at all. As you already may know, I am originally from Turkey but have been living elsewhere for many years now while […]
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The post Twitter War ! appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Windows ISATAP Client, Part 1
Last month I had the opportunity to work with a company to perform an IPv6 pilot. There are a lot of elements to light up for an organization to use IPv6, most of them (but not all) being technical in nature. One of the mechanism I used was ISATAP. In the past I have not […]
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The post Windows ISATAP Client, Part 1 appeared first on Packet Pushers Podcast and was written by Dan Massameno.
OUTAGES: They Suck, But Let’s Share the After-Action Reports
“It’s impossible to solve significant problems using the same level of knowledge that created them!” –Albert Einstein Outages happen- it’s a simple fact of running any type of system, be it network, server, application, aviation, nuclear, etc. Urs Hölzle, a Distinguished Fellow at Google and it’s first vice president of engineering, plainly states it this […]
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The Packet Pushers At Dell’s Interop Booth Tuesday & Wednesday @ 3:45pm
The Dell networking team has asked the Packet Pushers to co-host a couple of Interop sessions at their booth. Greg Ferro and Ethan Banks will be at the Dell booth on Tuesday, 1-April and Wednesday, 2-April at 3:45pm. In the Tuesday session, we’ll be discussing the new Dell Z9500. In the Wednesday session, we’ll discuss […]
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The post The Packet Pushers At Dell’s Interop Booth Tuesday & Wednesday @ 3:45pm appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Show 185 – Vendor Product Management
How do vendors decide to make network products ? What is the process and thinking behind what happens inside the wall of the vendor ? Today, Greg is join by Omar Sultan from Cisco to talk broadly about how vendors make big decisions
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The post Show 185 – Vendor Product Management appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Healthy Paranoia Show 23: Phone Phreaking, Hacking and Fraud, Oh My!
That’s right listeners, you’re not in Kansas anymore! It’s time to follow that Yellow Brick Road to another episode of Healthy Paranoia. Today, we’ll be discussing phone phreaking, hacking and fraud, oh my! So we’re off to see Wizard, the Wonderful Wizard of VoIP security, Patrick McNeil. Joining me over the rainbow for this trip […]
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The post Healthy Paranoia Show 23: Phone Phreaking, Hacking and Fraud, Oh My! appeared first on Packet Pushers Podcast and was written by Mrs. Y.
When Good NICs Do Bad Things: A Blast of IPv6 Multicast Listener Discovery Queries
This is the write-up of a recent event we experienced on our network. This will be combination of a journal of symptoms, troubleshooting steps taken, and a brief overview of the environment and platforms involved. This isn’t a forensic analysis of the cause or of different behaviors in various environments. Rather, it’s meant to be […]
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Cisco Internal VLAN Usage
About a month ago I worked on an old CatOS switch. Working on this switch reminded me about some of the differences between CatOS and IOS. One of the big differences is how a Layer 3 routed interface is configured between the two OS versions. On a Catalyst running IOS, it is almost identical as […]
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The post Cisco Internal VLAN Usage appeared first on Packet Pushers Podcast and was written by Charles Galler.
Ordered FIB
In a past post, we’ve discussed microloops in link state protocols. If we examine a small ring topology (if you come to my Interop talk, you’ll discover that ring topologies are the heart of network convergence), we can see where and how a microloop forms. If the link between A and B fails, A and […]
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Restoring Trust in the Internet – Part 2
In my last post I talked about the broken trust in the Internet. Now let’s talk about steps we need to take to restore that trust. First, we need to realize that trust is regained by proving we are trustworthy. There is nothing we can do, or say, that will instantly restore trust; it is […]
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The post Restoring Trust in the Internet – Part 2 appeared first on Packet Pushers Podcast and was written by Jonathan Strine.
Show 184 – The Future of Networking Part 2 as Inspired by #NFD7
At Networking Field Day 7, the delegates were treated to vendor demonstrations that challenged our thinking about the future of networking. Perhaps the industry is not agreed on just how we’ll implement and operate our networks in the coming years, but one thing is for certain. The landscape will be different. In this and the previously […]
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The post Show 184 – The Future of Networking Part 2 as Inspired by #NFD7 appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Review: Hadoop Operations
Hadoop Operations Eric Sammer Hadoop is one of those applications all data centers seem to need to support – and there is a lot of information out there about how Hadoop works, how to use it, and how to build Hadoop systems. From these, it’s pretty easy to glean a general set of requirements for […]
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Secret CEF Attributes Part 6, The BGP Connection
In the first five parts of this series we covered all the steps necessary to distribute QoS and monitoring to a large backbone. I guess at this point I should mention that this technology has a name (and acronym, of course.) Cisco calls it QoS Policy Propagation through BGP (QPPB.) I hope these blog posts […]
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The post Secret CEF Attributes Part 6, The BGP Connection appeared first on Packet Pushers Podcast and was written by Dan Massameno.
TCP/IP over VXLAN Bandwidth Overheads
A recent ‘conversation’ around VXLAN encapsulation and MTU with Matt Oswalt got me thinking about this subject recently. My calculations were mostly wrong (Matt’s were not) and I also found a shocking amount of incorrect information on the subject out on the ‘net too. So, let’s let the maths do the talking. TL;DR – As […]
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The post TCP/IP over VXLAN Bandwidth Overheads appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Show 183 – Storage Network Design
This week, the Packet Pushers talk about storage network design mostly in the context of converged infrastructure. Guests J Metz, Chris Wahl, and Russ White do all the heavy lifting of those storage-related packets from one end of the data center to the other. Show Outline When traditional network engineers think about designing for storage, […]
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The post Show 183 – Storage Network Design appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Using Next Generation MVPN to optimize your MPLS core – Part 1
Like many network engineers I have had difficulties with multicast, the logic is all messed up right!? The only implementation of mVPN I had seen in test or production was Draft Rosen (RFC6037). Now I know Draft Rosen works well but it does have its limitations and I’m a firm believer in getting unnecessary junk […]
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The post Using Next Generation MVPN to optimize your MPLS core – Part 1 appeared first on Packet Pushers Podcast and was written by Keith Humphreys.