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Restoring Trust in the Internet – Part 1

The Internet has a trust problem. With the recent revelations of government surveillance, traffic interception and modification, compromised products, and suspect algorithms, we have serious problems. Greg and Ethan spoke to this briefly on Show 175 regarding the pwning of several firewall products by the NSA, but the issue goes much further than just compromised […]

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The post Restoring Trust in the Internet – Part 1 appeared first on Packet Pushers Podcast and was written by Jonathan Strine.

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Why Python?

It’s been really interesting to see the industry in an all-out zerg rush to adopt Python as a skill-set. What is it about this seemingly arbitrary selection in the vast array of programming languages available out there? What is so special about Python that it comes up in nearly every conversation about SDN? This post has been in drafts for some time, and I was motivated to finish it up by this Packet Pushers episode, where Jeremy Schulman and others discuss Python and its impact to networking.

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Why Python?

It’s been really interesting to see the industry in an all-out zerg rush to adopt Python as a skill-set. What is it about this seemingly arbitrary selection in the vast array of programming languages available out there? What is so special about Python that it comes up in nearly every conversation about SDN? This post has been in drafts for some time, and I was motivated to finish it up by this Packet Pushers episode, where Jeremy Schulman and others discuss Python and its impact to networking.

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One leg too few? Architectural Best Practice on SSL VPNs

A couple of times in the past month I’ve been asked where a SSL VPN appliance should be deployed in relation to the firewall. In both cases it was relating to the Juniper Secure Access / MAG platform, but best practice should apply equally to any IPSEC or SSL VPN platform, so I thought it […]

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The post One leg too few? Architectural Best Practice on SSL VPNs appeared first on Packet Pushers Podcast and was written by Glen Kemp.

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Show 177 – Current Practices

More Engineers talking about their day-to-day problems. We found Justin Seabrook Rocha and Shawn McGuire lurking in the #PacketPushers ITC channel complaining about stuff. Now they are doing it in front to a microphone. Bring the real world to your real world. Guests Shawn McGuire bigbash on the #Packetpushers channel on irc.freenode.net Twitter : @mcguiresm Blog: http://8bitsbytes.com […]

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The post Show 177 – Current Practices appeared first on Packet Pushers Podcast and was written by Greg Ferro.

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The Secret Sauce for Network Services

Tunneling is the Duct Tape of Networking..It is interesting to realize that a big chunk of network features in Data Center, Service Providers and Enterprises use tunneling in one form or another..It would be fun to imagine a “world” without tunnels! Most known MPLS applications are tunneling techniques, for instance in a VPLS/L3VPN Scenario the […]

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The post The Secret Sauce for Network Services appeared first on Packet Pushers Podcast and was written by Karim Jamali.

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Remote Debugging OpenDaylight with IntelliJ

Remote Debugging OpenDaylight with IntelliJ is as easy as 1, 2, 3

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Remote Debugging OpenDaylight with IntelliJ

Remote Debugging OpenDaylight with IntelliJ is as easy as 1, 2, 3

​1) Go to Run > Edit Configurations

​2) Add a new Remote Configuration

​3) Configure it as follows:

• Host = Your Controller IP
• Port = 8000
• Sources = Whichever project/module you want to debug

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Remote Debugging OpenDaylight with IntelliJ

Remote Debugging OpenDaylight with IntelliJ is as easy as 1, 2, 3

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Networking Field Day 7 – Here We Go Again!

I’m pleased to be invited back for the 7th installment of Networking Field Day in San Jose, CA from February 19th - 21st. This event is part of a series of independent IT community-powered events that give the vendors an opportunity to talk about the products and ideas they’ve been working on, and receive honest and direct feedback from the delegates. The results of this dynamic vary quite greatly - sometimes a vendor doesn’t quite bring their A-game and we let them know.

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Networking Field Day 7 – Here We Go Again!

I’m pleased to be invited back for the 7th installment of Networking Field Day in San Jose, CA from February 19th - 21st. This event is part of a series of independent IT community-powered events that give the vendors an opportunity to talk about the products and ideas they’ve been working on, and receive honest and direct feedback from the delegates. The results of this dynamic vary quite greatly - sometimes a vendor doesn’t quite bring their A-game and we let them know.

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Networking Field Day 7 – Here We Go Again!

I’m pleased to be invited back for the 7th installment of Networking Field Day in San Jose, CA from February 19th - 21st. This event is part of a series of independent IT community-powered events that give the vendors an opportunity to talk about the products and ideas they’ve been working on, and receive honest and direct feedback from the delegates. The results of this dynamic vary quite greatly - sometimes a vendor doesn’t quite bring their A-game and we let them know.

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A New Year, A New Job and New Challenges

Well by the time I get around to clicking “Publish” on this post it will no longer be a secret, and you don’t know how hard its been for me not to talk about this in overly public forums.

As some of you may have heard, after five months of interviews and immigration paperwork, I have accepted a new role with Juniper Networks as a Sr Data Center* Technical Marketing Engineer. This role will see me move to the San Francisco Bay Area in the next week or so, and be based directly out of the Sunnyvale office for at least the next two years.

The Role

This new role is actually quite exciting to me (and a little bit scary) because it takes all of the knowledge and skills I have gained over the last 15 years as a consultant and then makes use them in a different way. Instead of building solutions to individual customer requirements, I will be working with the Solutions Team to help promote solutions that are universal and can scale with user need. I will be working on creating white papers, design guides and helping position Juniper Data Center their solutions.

Having spent Continue reading

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How Could MTU affect BGP Sessions ?

This post represents the solution and explanation for quiz-18.
It presents different MTU values, summarizes Path MTU Discovery and gives solutions to the quiz presented a while ago.

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Please Fill Out Our 2014 Audience Survey

Packet Pushers is a big part of Greg’s & Ethan’s lives and the show is continuing to grow in 2014. We learn a lot, laugh a lot, and work hard to bring you the show every week and fresh content on the blog site. Despite enjoying editing and writing along with producing the podcast, the […]

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The post Please Fill Out Our 2014 Audience Survey appeared first on Packet Pushers Podcast and was written by Ethan Banks.

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Install Open vSwitch Networking on Red Hat Fedora 20

The following tutorial will bootstrap you in installing and configuring Open vSwitch on Red Hat Fedora 20. It also has some extras that are just general Fedora configuration tasks such as setting up networking along with Wireshark over an X11 ssh session. This is the first of lots of integration posts over the next year as we develop network virtualization ...

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BGP Path Hunting/Exploration

 Only one change or link flap can cause one hour or more traffic drop.  It is weird, right? But this is true. In this article BGP Path Hunting/ Path Exploration behavior will be shown, BGP route flap dampening and its variants will be explained and how only one interface flap can cause very long down […]

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The post BGP Path Hunting/Exploration appeared first on Packet Pushers Podcast and was written by Orhan Ergun.

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Show 176 – Intro to Python & Automation for Network Engineers

Network engineers keep hearing about Software Defined Networking (SDN) and wonder, “Will I have to become a programmer to keep my job?” The answer is, “Probably not.” However, there’s still an awful lot to be said for network engineers becoming familiar with the tools of network automation. There’s a gain in productivity to be had […]

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The post Show 176 – Intro to Python & Automation for Network Engineers appeared first on Packet Pushers Podcast and was written by Ethan Banks.

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[Storage Flow Control] Part 2 – Implementation and Troubleshooting

This will be a short follow-up to my last post about the idea of Flow Control in storage protocols. As a review, the three main options in common use today are: IP Storage - uses TCP windowing to provide feedback to client on how much data to send Native Fibre Channel - uses buffer credits (typically on a hop-by-hop basis when using N_port to F_port) FCoE - uses Priority Flow Control to define a class of service on which to send Ethernet PAUSE frames to manage congestion The last item is really the only one that warrants any kind of configuration, as the first two are more or less baked into the protocol stacks.

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OpenDaylight Summit 2014

I will be at the OpenDaylight Summit in Santa Clara on February 4th and 5th. To me, OpenDaylight represents a platform on which we can test SDN ideas today, right here, and right now. In my day job I may never be called upon to help deploy OpenDaylight (here’s hoping!) but nonetheless, it’s projects like this where the best and the brightest come together to share ideas and help to form the technology that the industry will be using for the next few decades.