Most people refer to the “Data Centre Network” as though it was a single network. In practice, data centres have a number of individual networks. Each network is specifically designed for a specific purpose and function. A typical data centre network design has about five individual networks that connect together to form the “data centre network” which many people fail to recognise. I’ll define these networks and then look at the future of data centre networks with overlays. What seems clear, today, is that networking will provide different networks for different use cases and the customer will decide.
I was eating the last of my toast as I sat down into the driver seat of my “CloudCar”. Customer visit at 09:30am. As I slipped my smartphone into the cradle, the dashboard screen came to life and opened the NavSat app with an error message that my maps were out of date and would I like to download the latest files. “Why not”, I thought ? I confirmed and the download started. Except that the data plan on the onboard 4G LTE connection had reached it’s data cap. The kids had been watching video on the way to the beach and used it up. So I confirmed the purchase of some extra bandwidth (I chose the middle plan because I always do), went back to the NavSat and restarted the updates.
The rise of Software Defined Networking has led to a steady stream of emails from network engineers asking whether they need to learn to programming in the future. After consideration, I currently think that the answer is mostly no but some percentage of networking people will gain and use specific programming skills for good business outcomes. You need to decide where you want to be.
Many people are predicting that networking will become a heavily commoditised with cheap white box hardware in the next few years. But I don’t believe commoditisation will happen the way that most people expect. So in this article I’m working through different ideas and concepts on product pricing and perceived value of networking as a whole. I would welcome discussion on this, I’m not completely confident that I’ve got my ideas locked down here. See you in the comments !
Lots of talk about simplicity recently and the fact that networking is too complicated and inflexible. There are a number of choices that you deliver simplicity in Overlay Networks. Least Functionality - One choice is to reduce the network to most minimal and least functionality. But we tried that with L2 ECMP protocols like TRILL […]
As I approach the end of the calendar year & prepare for a holiday break, I’ve been reflecting on what I’ve learned and done this year. Of course, this also leads to what I need to learn next year.I’m making a number of changes to my career next year and as part of my planning process I wrote a list of eight things I think I’ve learned in the last 20 years.
It’s becoming clear that 2014 is going to see a significant push and adoption on Private Cloud supported by marketing and technology from incumbent vendors who are starting to lose substantial revenue. Public cloud companies don’t spend with Cisco, IBM, HP or other recognised manufacturers and it’s time for them to defend their turf and stop the revenue bleeding away.
Stumbled over “AgilePorts” feature in Arista products this week: Arista’s AgilePorts technology enables the combination of four 10GbE SFP+ interfaces into a single 40GbE interface leveraging the parallel lane technology present in the 40GBASE-CR4 and 40GBASE-SR4standards. With AgilePorts, each 10GbE interface emulates one of the four parallel lanes, which are then driven by a 40GbE […]
The VMware versus Cisco thing is overstated. It’s easy to conflate issues with all the excitement. The reality is that many customers have Cisco networks and will use VMware. They want Cisco & VMware to be partners. Customer first is corporate policy at both of these companies therefore Cisco & VMware will be partners. VMware has a software defined […]