MPLS TE Design -Part 3


This is a continuation from Part 2 Fast Reroute Why Fast Reroute? Many NSP’s like ACME have traffic with tight SLAs. For … [Read more...]

MPLS TE Design -Part 2


This is a continuation from Part 1 Case for LDPoRSVP As we mentioned at the very beginning that ACME provides L3VPN and … [Read more...]

MPLS TE Design -Part 1


In this post we will be exploring different aspects of Traffic Engineering (RSVP-TE) from a design perspective using … [Read more...]

Confessions of technical interviewer

A technical interviewer, or technically an interviewer. I was interviewed quite a few times since I set of to join the … [Read more...]

Destination Based NAT

Dest Based NAT 1

Here is the scenario: There is a public server on the internet that you have requested access to. The "admins" that control … [Read more...]

Wi-Fi: The jungle of the Unlisenced

This is a follow-up on the recently published Packet Pushers Show 221 – Marriott, Wifi, + the FCC with Glenn Fleishman & … [Read more...]

Transit vs peering: what makes sense when?


Iljitsch van Beijnum, Network Engineer and author, is our guest blogger today with a post about peering sponsored by Noction … [Read more...]

Routers vs Switches, When to position which?

Everyone knows the difference between a router and switch right? Good.. (for those that need a good refresher) this post is … [Read more...]

BGPSEC: Leaks and Leaks


This is the final post in my series on BGPSEC — I will probably follow this up, at some point, with a couple of posts on some … [Read more...]

Guests Needed for Design + Build 2015 Podcasts

Updated 12-January-2015 to include survey form. I'm working on a series of "design and build" podcasts in 2015 for Packet … [Read more...]

Raspberry Pi RSPAN Capture Box

For some time I have had issues while doing captures such as finding the elusive “spare laptop” you can use, multiple trips … [Read more...]

HTIRW: IETF Organizational Structure


So far, we've looked at the naming system, routing, and policy in our travel through "internet land." Last time, we took a … [Read more...]

Parsing Junos XML with Python


I'll admit it - I've drunk the "Network Engineers should learn programming" Kool-Aid. In so doing, I'm gearing up for Kirk … [Read more...]

A Look Ahead to Packet Pushers Content in 2015

Here's an update on some Packet Pushers news, and a look ahead to the content we're planning for 2015. No scary … [Read more...]

BGPSEC: Signatures and Performance

BGPSEC is a set of BGP extensions being developed by the SIDR working group of the IETF to improve the security of the … [Read more...]