Network Break 17

Intel IDF Conference SDN / NFV everywhere service chaining demonstrations problems in service chain Rack … [Read more...]

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 … [Read more...]

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 … [Read more...]

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 … [Read more...]

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 … [Read more...]

Five Reasons To Be At Interop New York


This guest post is by Drew Conry-Murray, Director of Content & Community at Interop and a good friend of the Packet … [Read more...]

Windows ISATAP Client, Part 3


In Part 2 we did the initial ISATAP configuration for our Cisco router. Here we’ll show the config we use on our Windows … [Read more...]

Designing Networks for Selfish Users is Hard


‘ On Earth Day at 1990 , New York City's Transportation Commissioner decided to close 42d Street , which as every New Yorker … [Read more...]

HTIRW: Provider Peering Types


One of the confusing aspects of Internet operation is the difference between the types of providers and the types of peering. … [Read more...]

Windows ISATAP Client, Part 2


In Part 1 we discussed how to turn off ISATAP on Windows host—which is a great idea.  Turning off unnecessary components of … [Read more...]

A History of Load Balancing

A History of Load Balancing - Companies

A visual representation of the company and, to a lesser extent, product history of the load balancing/application delivery … [Read more...]

Common Network Design Concepts Part-1

There are design tools which we should consider for every design. LAN, WAN and the data center where these common design … [Read more...]

Jr. Network Admin Willing to Work In Columbus, Ohio? Let’s Talk!


Carenection is where I currently work as the Senior Network Architect. We are looking for a Junior Network Administrator. If … [Read more...]

Introducing the Multicast “Dating Service” (aka the “RP”)


In February of 2001 I attended a 5 day multicast class within Cisco taught by none other than  Beau Williamson!  In both his … [Read more...]

Why logging is so important? VSS example.

Example: Why switch in VSS mode crashed? Few weeks ago there was a great podcast about logging (show 192). Recently I came … [Read more...]