MPLS VPNs and Junos config groups: a match made in router heaven
Introduction If you manage MPLS VPNs on Juniper Networks devices running Junos (or are learning about doing so), this tip should make your life easier. I can’t imagine operating MPLS VPNs on a scale of more than a handful of VPNs without it. Below I’ll describe how it works, and then to make sure it’s […]
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The post MPLS VPNs and Junos config groups: a match made in router heaven appeared first on Packet Pushers Podcast and was written by Nik Weidenbacher.
IPSec Bandwidth Overhead Using AES
Someone asked so lets walk through the overhead introduced when using IPSec with AES; it’s higher than you might think and I haven’t even factored in ISAKMP. Encryption really isn’t ‘my bag’ so if anything is wrong, do let me know; hopefully public scrutiny will mean I can truly rely on these figures. Take a […]
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The post IPSec Bandwidth Overhead Using AES appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Not-Via? Not-What?
In our last episode (it’s been two weeks!), we talked about P’s and Q’s. Now we’ll get down into a few details, and think through what is probably the simplest mechanism ever designed for finding alternate loop free paths through a two connected network: not-via. Let’s use the embedded network as an example. In this […]
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Show 164 – Cool or Hot? Lapukhov + Nkposong’s BGP SDN
On this Packet Pushers podcast, hosts Ethan Banks and Greg Ferro are joined by Petr Lapukhov for a discussion about his IETF draft on BGP SDN, co-authored with Edet Nkposong. Guests Russ White and Ivan Pepelnjak also join in the discussion, quizzing Petr about the details of the draft and how implementation has worked out thus far […]
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The post Show 164 – Cool or Hot? Lapukhov + Nkposong’s BGP SDN appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Why so Rude?
The engineering world has a long standing tradition none of us should be too proud of: rudeness. There was, in fact, a time when I was working the phones on customer support that the general attitude was, “feel free to flame me when I ask a question, just answer the question in the flame.” Flames […]
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The Importance of Setting Expectations
One of my first experiences dealing with a technology customer involved a request to deliver and install a new PC and printer. During the process I expected I would need to educate the user on the features of Windows 3.1. This was before I ever really started working in technology in a full-time capacity. While […]
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The post The Importance of Setting Expectations appeared first on Packet Pushers Podcast and was written by Paul Stewart.
TCP Over IP Bandwidth Overhead
How long will it take to transfer a 100MB file over an IPSec tunnel running across a dedicated 100Mbps Ethernet link? 1 Second? Fail! 8s? You’re getting warmer. It’s almost 8.5s without the IPSec and over 9s with it. What’s the big deal with a 1s difference? Well, extrapolate that increase, let’s say it’s 13%, and […]
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The post TCP Over IP Bandwidth Overhead appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Healthy Paranoia Show 17: How Do I Pwn Thee?
Greetings fair ladies and kind sirs, I present yet another episode of Healthy Paranoia. In this episode we examine the notoriously mad, bad and dangerous to know; pentest dropbox. Joining Mrs. Y are some poètes maudits of the security realm, including; Taylor Banks, Dan Tentler, Kyle Stone, Nick Lennox and Jay James. A dropbox or […]
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The post Healthy Paranoia Show 17: How Do I Pwn Thee? appeared first on Packet Pushers Podcast and was written by Mrs. Y.
Leveraging LISP for IPv6 internet connectivity
Introduction End hosts inside of the enterprise or home can be connected to the IPv6 internet using LISP’s powerful encapsulation mechanisms. This article is structured in three sections exploring the utilization of LISP as means of IPv6 internet connectivity. The first section dives into IOS LISP IPv6 configuration and verification of the control-plane/data-plane. The use […]
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The post Leveraging LISP for IPv6 internet connectivity appeared first on Packet Pushers Podcast and was written by Pablo Lucena.
Make yourself a standout
As people manage their careers, it is common sense that they need to stand above their peers if they want to outperform them from a career perspective. This is why you see people working 14- or 16-hour days. It’s become such common behavior that it is a central meme in just about every movie or […]
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The post Make yourself a standout appeared first on Packet Pushers Podcast and was written by Michael Bushong.
Mind Your Q’s and P’s
In the midst of this series of posts around fast convergence, someone asked if I could explain p and q space a little better. The illustration here might help readers who have more of a visual mind to understand the concepts involved. (feel free to click through to a larger version) Essentially, we can think […]
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Job Opening – Network Administrator at First Wind Energy, Boston, MA, USA
First Wind Energy is searching for a Network Administrator who will be a key member of the IT team and report to the Director of IT. This position is based in Boston, MA. The Network Administrator is a hands-on technical position focusing on the support and maintenance of the network infrastructure and end user support […]
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The post Job Opening – Network Administrator at First Wind Energy, Boston, MA, USA appeared first on Packet Pushers Podcast and was written by Job Posting Service.
INTER-AS VPNs PART -1
MPLS is widely used technology within Service Providers and sometimes also within Enterprise networks. One of the mostly used application of MPLS is MPLS VPN. There are two flavors of MPLS VPN which is Layer 2 and Layer3 VPNs. Basically layer2 VPNs, service provider gives layer2 connectivity to the customer and PW established for each […]
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The post INTER-AS VPNs PART -1 appeared first on Packet Pushers Podcast and was written by Orhan Ergun.
Show 163 – Open Source perfSONAR Finds The Flaws Impacting The Flows
In this week’s show, we dive into the networking community ocean, and come up with Brian Tierney and Nick Buraglio for a discussion about perfSONAR. perfSONAR is an open-source package of network testing tools that can run in a mesh across diverse network infrastructure, and help determine why you’re not getting the network throughput on […]
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The post Show 163 – Open Source perfSONAR Finds The Flaws Impacting The Flows appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Stop The Rodent – Tackling Rogue Devices in the BYOD Era
There was a time when the network was flat – everything was interconnected, anyone could access everything and security was not a serious problem. And when security problems began to crop up, options like three-layered hierarchical model, firewalls and Intrusion Detection Systems helped you secure the network. Finally, when you were battling viruses, zero day […]
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The post Stop The Rodent – Tackling Rogue Devices in the BYOD Era appeared first on Packet Pushers Podcast and was written by Sponsored Blog Posts.
10 Tips for Daily Time Management
Those in technology realize that a day of work can vary greatly and can change without warning. Additionally, many try to build elaborate project plans and organizational goals. However, what is sometimes overlooked is the importance of daily execution of tasks. Those in technology must individually address the need to stay on task each and […]
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The post 10 Tips for Daily Time Management appeared first on Packet Pushers Podcast and was written by Paul Stewart.
Show 162 – The Bourbonator Rises at #NFD6
The mostly nonsense title masks several discussions we have with many of the Networking Field Day 6 delegates around the following topics: Spirent’s new Avalanche NEXT testing platform for network transit and security platforms. What it is, what it does, and what we thought of the live demo we got. Our introduction to the ThousandEyes […]
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The post Show 162 – The Bourbonator Rises at #NFD6 appeared first on Packet Pushers Podcast and was written by Ethan Banks.
Finding a New Path (Part 2)
So –we’ve covered on of the two cases dealing with calculating a new path, and then I left you hanging for a week. What’s the second case? Let’s return to our small network for a moment to figure it out. What happens if D’s cost to reach the destination isn’t lower than E’s cost? E […]
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Leading cross-functional teams: foot-in-the-door theory
When I was at Juniper, my job was basically to sell internally those ideas that were deemed so controversial or hotly contested that no one could get them through the corporate machinery. This put me in a position that I was almost always leading cross-functional teams whose members did not directly report to me. I […]
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The post Leading cross-functional teams: foot-in-the-door theory appeared first on Packet Pushers Podcast and was written by Michael Bushong.
Five selfish reasons to interview candidates
Lets be honest. It is hard to justify the time needed to interview people. It can be really hard to motivate yourself to interview potential new hires when project deadlines are looming. It is perfectly fair to ask yourself, “what’s in it for me?” I think there is a payoff for time spent on hiring. […]
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The post Five selfish reasons to interview candidates appeared first on Packet Pushers Podcast and was written by John Harrington.