NFV and OPNFV: Getting Down to Business at ONS 2015


This post is shared by the Open Networking Summit. The Packet Pushers thank the ONS for being a sponsor. SDN principles … [Read more...]

OpenStack Neutron – The Dirty Network Detail

OpenStack Neutron Networking

Update: I'm slowly getting there, third and more accurate diagram attached below which now includes where security policies, … [Read more...]

Using Python Context Managers for SSH connections

In this post, I will cover basic usage of Python's context managers to connect to a network device using SSH. I will use them … [Read more...]

SDN: What Small and Mid-Sized Businesses Need to Know in 2015

Guest blogger Alex Hoff is the VP of Product Management at Auvik Networks, a cloud-based SaaS that makes it dramatically … [Read more...]

APIs, APIs…a look at Arista’s eAPI

Arista switches have an API known as eAPI. In this article, I will discuss some of the basics of how eAPI operates, how to … [Read more...]

Kicking the Tires on Cisco’s onePK

Recently, I experimented with Cisco's onePK. What follows are observations on onePK, as well as some details on the mechanics … [Read more...]

SDN, Network Virtualization and Hypervisors


Packet Pushers sponsor Pluribus Networks sent along Robert Drost to bring us this blog post. He's a pretty interesting … [Read more...]

Automating the Cabbage Patch Network Today (2014)


"Sometimes my head is a bit of an idiot" is something my daughter might say and that happens to me too, if that time is today … [Read more...]

What is Service Chaining?


This post is in response to a comment on one of my previous posts on using MPLS in the Data Center. Service chaining has … [Read more...]

Has SDN Changed Networking?

Software Defined Everything, NFV, OpenFlow, SDDC and Orchestrators are buzz words of DC networking. An interesting point … [Read more...]

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, … [Read more...]

SDN 2014 – Make Our Garden Grow – Part 1

Let dreamers dream what worlds they please Those Edens can't be found The sweetest flowers The fairest trees Are grown in … [Read more...]

Cisco ACI – Speculation of its Inner Workings


Last week I was at a Cisco users group meeting where some sales engineers were giving a presentation on the new Application … [Read more...]

IP/FRR and Centralized Control Planes

2014-01-07 fig01

I’ve been spending some time in the last few months talking through various fast reroute systems – we’ve looked at one … [Read more...]

The Impact of Software Defined X on a Networking organization

Introduction We’re in one of the most exciting times in data networking.  While I’m sure we’re all sick of vendors co-opting … [Read more...]