Traceroute – A Small Tool for Big Problems
Basics is must for Network Engineer.Traceroute is an imp and handy tool while troubleshooting any network issue.How Traceroute works ? Whats the concept behind it ? Its task is to determine the path taken by packet to reach its destination .Before going further ,lets see the IP header . 0 1 2 3 0 1 […]
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The post Traceroute – A Small Tool for Big Problems appeared first on Packet Pushers Podcast and was written by Anurudh Dubey.
Now that We’ve Buried the Seven Layer Model…
“But the seven layer model is still useful for teaching networking…” So ran the most common reaction to my post last week about the seven layer model being dead. But let me ask something — how useful is the seven layer model for teaching networking? It doesn’t match the TCP/IP stack, it doesn’t account for […]
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Show 207 – Cisco Nexus Unified Fabric – Sponsored
What’s new with Cisco Nexus Unified Fabric (formerly Dynamic Fabric Automation), you ask? Well, an integrated end-to-end solution that builds on four fundamental pillars is what’s new. The pillars are… Fabric management. Workload automation. Optimized networking. Virtual fabrics. These features are applicable across the Nexus product line from the Nexus 7K down to the Nexus 1K […]
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The post Show 207 – Cisco Nexus Unified Fabric – Sponsored appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Traveling Light – 15 Things in an Engineer’s Bag (including the bag)
My day job involves traveling around northern Europe and occasionally further afield. I often get little notice of where I’m going, or how long I’m going for. This makes for a lot of trudging along train platforms and across departure lounges. Hauling too much stuff around is guaranteed to ruin my day. Traveling light becomes a necessity, […]
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The post Traveling Light – 15 Things in an Engineer’s Bag (including the bag) appeared first on Packet Pushers Podcast and was written by Glen Kemp.
What The Heck Is SPDY?
A10‘s presentation at NFD8 seemed to generate a bit of interest (dare I say excitement) and many a question around the SPDY (pronounced ‘speedy’) protocol. I promised Lindsey Hill (@northlandboy) on Twitter that I’d write a blog post about it and here it is. It took me rather longer to write than I thought and […]
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The post What The Heck Is SPDY? appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Show 206 – Brocade’s OpenDaylight-Based Vyatta Controller – Sponsored
If you watch the software defined networking space, you might have noticed that Brocade has been quietly hiring a sharp group of actual (not self-proclaimed) thought leaders and developers. The question has been, “To what end? What’s Brocade going to do with all of these capable folks?” Today, we can answer that question. Brocade has built an […]
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The post Show 206 – Brocade’s OpenDaylight-Based Vyatta Controller – Sponsored appeared first on Packet Pushers Podcast and was written by Ethan Banks.
The Seven Layer Model is Dead
Whether we have the funeral in New Orleans style (with a lot of brass and, well, other stuff), or in the more somber style we’re all so accustomed to– or even perhaps dance down the road singing, “ding dong, the model’s dead” — it’s time to pack the seven layer model into a virtual coffin […]
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PQ Show 33 – Intel Rack Scale Architecture – Real or Impractical ?
At the IDF 2014 conference, Intel made a big song and dance about their Rack Scale Architecture which removes the need for “top of rack” networking and changes the nature of servers in a big way. My initial impression is that this has limited application in the enterprise or cloud providers but might be useful […]
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The post PQ Show 33 – Intel Rack Scale Architecture – Real or Impractical ? appeared first on Packet Pushers Podcast and was written by Greg Ferro.
IPv6 Networking Detection Case #141 – Part 2: The Solution
Part 2: The Solution Ready for part 2? Have you read part 1 w/ the facts and clues? If not, go read that now before you continue. Part 1: The Facts and Clues Review the Facts and Clues Again Last we played we were ON R1 and unable to ping the IPv6 address […]
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The post IPv6 Networking Detection Case #141 – Part 2: The Solution appeared first on Packet Pushers Podcast and was written by Denise "Fish" Fishburne.
Network Break 17
Take a stroll through the Intel IDF 2014 conference which was all about the Software Defined Network/Storage/Infrastructure/Architecture ......
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The post Network Break 17 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
IPv6 Networking Detection Case #141 – Part 1: The Facts and Clues
Part #1 – I give you the facts and the clues. Part #2 – I give you what the problem ended up being. Ready to play? This is the IPv6 troubleshooting blog that started off as something else entirely. I was going to do a post on IPv6 Multicasting, so I grabbed 3 ASR1K and […]
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The post IPv6 Networking Detection Case #141 – Part 1: The Facts and Clues appeared first on Packet Pushers Podcast and was written by Denise "Fish" Fishburne.
Community Show – Killing the Spanning Tree with Anthony Sequeira and Orhan Ergun
No country for old men !!. This week in the Orhan Show, Anthony Sequeira and Orhan Ergun are talking about spanning tree , its drawbacks, spanning tree modes, technologies which can eliminate the spanning tree’s drawbacks or completely do not use it. Orhan recommends all audience to read this blog post about spanning tree which […]
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The post Community Show – Killing the Spanning Tree with Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Community Show – Killing the Spanning Tree with SPB,TRILL,Fabricpath from Anthony Sequeira and Orhan Ergun
[player] No country for old men !!. This week in the Orhan Show, Anthony Sequeira and Orhan Ergun are talking about spanning tree , its drawbacks, spanning tree modes, technologies which can eliminate the spanning tree’s drawbacks or completely do not use it. Orhan recommends all audience to read this blog post about spanning tree […]
The post Community Show – Killing the Spanning Tree with SPB,TRILL,Fabricpath from Anthony Sequeira and Orhan Ergun appeared first on Packet Pushers.
Show 205 – Open Source Network Monitoring with OMDistro.org
Network monitoring is one of our most requested topics on Packet Pushers, and this week we take on open source monitoring solutions. Why open source? Because commercial NMS solutions are all over the place in functionality and price. So, if it’s possible to put a solid NMS in place based on open source, then it’s […]
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The post Show 205 – Open Source Network Monitoring with OMDistro.org appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Viewing HTTP Headers Using Browser Developer Tools
I often find myself viewing HTTP headers (request and response) at the ‘client side’, which are often much quicker (and safer) than decrypting SSL/TLS traffic on a load balancer/ADC. With the use of SSL/TLS growing rapidly even within private networks and the inability to decrypt PFS/DHE protected traffic, this can often be the only way to troubleshoot. The reasons I […]
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The post Viewing HTTP Headers Using Browser Developer Tools appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Network Break 16
This week, EVO:RAIL & Converged thingies, Cisco's multiple SDN strategies, Don't be a precious snowflake and Congress open source project.
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The post Network Break 16 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Show 204 – Reducing Your Attack Surface with Avaya Stealth Networks – Sponsored
“The problem with ‘covering your tracks’ in network security is that your ‘covering’ becomes more conspicuous than your ‘tracks’,” says Ed Koehler, Distinguished Engineer for Avaya’s Networking Division. Ed joins Greg Ferro and Ethan Banks for a ninja nerd-fest outlining a set of technologies that not only offer some innovative ways to set up your […]
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The post Show 204 – Reducing Your Attack Surface with Avaya Stealth Networks – Sponsored appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Network Admin in Cary NC
I’m helping a company (as a favor) that’s looking for a network administrator in the Cary, NC area. The company is moving from another area, and hence rebuilding their office and backend systems. They rely heavily on their IT “stuff,” as they’re essentially in the information business. Please send me an email if you’re interested […]
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RFCs You Should Know: 6250
Most RFCs are deeply technical — and they follow the “Yaakov rule” for intelligibility (if you didn’t write it, or you didn’t sit with one of the authors in a bar someplace to talk about it, you can’t understand it), there are a few here and there every network engineer should know. RFC 6250 is […]
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Common Network Design Concepts Part-2
In the first article of this series, reliability and resiliency has been explained. Every component and every device can and eventually will fail, thus system should be resilient enough to re converge/recover to a previous state. Resiliency can be achieved with redundancy. But how much redundancy is best for the resiliency is another consideration to […]
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The post Common Network Design Concepts Part-2 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.