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Category Archives for "Networking"

Providers Edge to Edge VPLS Configuration on Cisco ASR 9000 Series Routers

Today I am going to talk about the VPLS configuration on Cisco ASR 9000 series routers. Before we will start with the configuration part, lets talk about the basics of the VPLS.

VPLS stands for Virtual Private LAN Service and enables geographically separated local-area network (LAN) segments to be interconnected as a single bridged domain over an MPLS network. So with the help of VPLS customer can extend the Layer 2 traffic across the globe on MPLS enabled service provider network. 

If customer wants to share the L3 information with the service provider to route it from their networks towards the remote site, then we can use routing at the edges of the PE routers and MPLS in the core while if customer don't want to share the L3 information with the service provider they always go with the VPLS type of services where we have L2 protocols like Frame-Relay, Ethernet, ATM services at the edges of the PE routers and MPLS on the core. 

This is the basic difference between the MPLS and VPLS technologies. Some times you saw like EoMPLS ( Ethernet over MPLS) which is another VPLS technology as Layer 2 ethernet information shared over Continue reading

Where is IoT headed?

A recent survey of IEEE engineers reveals some interesting insights into the Internet of Things (IoT)—both challenges and expectations. Commissioned by Northeastern University Silicon Valley, the survey asked the engineers to answer nine questions about IoT development and deployment. Some of the answers might surprise you.While still in its infancy, the IoT is poised to change our lives in very personal and meaningful ways. The visionaries are already asking if robots will someday replace soldiers, if guns will be traded for cyber-bots, and if artificial intelligence (AI) will change the way we live our daily lives.The audience for the survey was a group of 500 IEEE members—all in fields associated with IoT or working in IoT itself. Their areas of expertise varied from manufacturing (nearly 40% of the participants) to project management (only .19%).To read this article in full or to leave a comment, please click here

Calling all networking leaders – future:net 2017 is coming

“I thought future:net was the smartest of the networking conferences I’ve attended this year. The speakers were excellent — especially the customer and end-user stories, which provided valuable insight…it reminded me a lot of the first years of the Open Network Summit — the brain trust of the industry would attend, and that made it a must-attend show.
Craig Matsumoto, Managing Editor, SDX Central
 “A note to say what a privilege it was to participate in the future:net event. Seriously, absolutely top notch event that was free of the embuggerances that make large conferences such hard work. Congratulations on pulling it together and we hope for another invitation when it comes around again.”
Greg Ferro and Ethan Banks, Co-founders of Packet Pushers

We live in a hyper connected world – everything of value, from the apps, to the cloud, to the devices, to the users, is all closely tethered to one another. The network has become the critical platform that connects everything reliably and securely. IT must also evolve to support this new ecosystem of engagement. Ultimately, a lot has to happen for the network to deliver what customers need: a seamless and secure experience.

That’s why we’re looking Continue reading

Worth Reading: The future is hardware

Since the advent of open source in telecoms, customers have increasingly fallen in love with the idea of getting all software for free. That keeps vendors scratching their heads when thinking about long term survival, let alone midterm profitability… and ways of differentiating. Hopefully the industry will find a way to keep on paying for software innovation rather than expecting it to happen ‘for free’, based on wishful thinking or long term relationships. It must be quite a shock for some vendors to realize that service providers are not buying from us for the fun of it. No they are buying solutions only because they a) need them and b) don’t get them for free. Our customers’ main business is serving their customers, not entertaining vendors. Rather, they would live without us and save a lot of money. Brutal, isn’t it? Well, why would they be different than us? —ECI

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IPv6 Standardization

The IETF published RFC8200 last week, which officially makes IPv6 an Internet Standard. While this move was a long time coming—IPv6 has now reached about 20% deployment—a more interesting question is: what has changed since RFC2460, which was a draft standard, was published in 2013? After all, the point of moving from the experimental to the draft standard to the internet standard states is to learn more about the protocol as it operates on the wire, and to make changes to improve deployability and performance.

Where would you look to determine what these changes might be? The IETF draft tracker tool, of course. If you look at the data tracker page for RFC8200, you will find a tab called history. From there, you have the option of looking at the revision differences, as shown below.

When you click on the wdiff button, you will see something like this—

In this case, I went back to the original version of the RFC2460bis draft (which just means the draft was designed to replace RFC2460). There are earlier versions of this draft from before it was accepted as a working group document, but even this comparison should give you some idea of the Continue reading

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