This post will introduce a new type of DMVPN – FlexVPN, unofficially called “DMVPN phase 4″ . We will go through the basic building blocks of Cisco FlexVPN DMVPN and some of the design best practices for a typical enterprise WAN network. FlexVPN Introduction FlexVPN is a configuration framework (a collection of CLI/API commands) aimed to […]
The post Cisco FlexVPN DMVPN, Part 1 – Overview and Design appeared first on Packet Pushers.
I can’t believe how fast 2015 is flying by. It seems like we were just making our networking predictions for the year. If you’ve been following the blog or keeping up with us on social media, you may have noticed we’ve been busy here in Nashua in terms of our growth and expansion as well as the products we’re delivering. We are rapidly evolving Plexxi to keep pace with today’s competitive technology landscape.
I’m excited about the prospects for the future. And the reason has to do with three key accomplishments in 2015 (so far): today’s big news —$35 million in funding to accelerate our growth plans and product development; our new strategic partnerships along with our customer growth in targeted vertical markets; and the introduction of our Switch 2 Series. We’re set to make 2015 our best year yet.
1. Financing to Accelerate our Growth. Today, we announced we raised $35 million to continue our rapid growth in the software-defined agile datacenter market. The infusion of capital will help fuel the rapid expansion of our sales, marketing, customer support, and research and development efforts to deliver on our vision of a software-defined architecture in datacenters and service provider networks. Continue reading
Expect more reseller deals as Plexxi builds on its partnership with Arrow and starts thinking IPO.
One of my readers stumbled upon a 4-year-old blog post explaining the potential implementations of VXLAN hardware gateways, and asked me if that information is still relevant.
I knew that I’d included tons of information in the Data Center Fabrics and VXLAN Deep Dive webinars, but couldn’t find anything on the web, so let’s fix that.
Read more ...
CloudFlare launched five years ago. Within a year of our launch, the biggest surprise was the strong global demand for our service. From nearly the beginning, China was the second largest source of traffic by country to our network, behind only the United States.
In retrospect, that shouldn't have been a surprise. In 2010, the year we launched, 34% of China's population, or 450 million people, were online. Today, nearly half the country is online. To put it another way, with 700 million people online, China represents a quarter of all Internet users. If your mission is to help build a better Internet, like CloudFlare's is, then China is a country you cannot ignore.
Consequently, starting in 2011, we began to investigate how CloudFlare could bring our service to the Chinese Internet. Four years later, we're excited to announce the extension of CloudFlare's performance and security platform across mainland China. This is the story of how we did it.
The Challenges
There are three major challenges to extending a service like CloudFlare's across mainland China: technical, economic, and regulatory.
Technical
From a technical perspective, the Chinese Internet, despite its many similarities, is different than the rest of the world. Unlike Continue reading
Apple’s 2015 WWDC event included a great session on IPv6 & TCP changes coming with iOS 9. There is a related post to the IETF v6ops mailing list here. The new IPv6 hotspot is very interesting to me. These are my notes on how hotspot functionality can work with IPv6, and no NAT.
The current IPv4 hotspots use simple NAT, similar to most home network setups. The mobile network assigns a public IPv4 /32 address to the handset, H. The handset picks a local RFC1918 address space for its connectivity to local clients, and hands that out via DHCP. Hide NAT is used to provide outbound internet connectivity for those clients.
NAT is evil, right? We can’t use NAT to hide the local clients behind the handset. So how do we provide IPv6 hotspot functionality? One way would be to use DHCPv6 PD. When the hotspot is enabled, the mobile device could request a prefix via DHCPv6 PD. That could then be used for local devices.
Unfortunately the Continue reading
Define "Fat Finger"
The post Network Dictionary – Fat Finger appeared first on EtherealMind.
Did you miss this week's top headlines? That's alright -- we got there right here for you.
Ok maybe that title is a bit grandiose… But due to the great response I received Friday morning from the launch of the original PCAP shirt, and the IPv6 follow-up, I decided to create a few new designs and put everything into a store front. If the demand continues I will continue to publish new shirts, and keep up with relaunching original designs into their own campaigns. Not that I expect the demand for these shirts to continue long term, but you never know. Nevertheless I appreciate everyone’s support thus far.
But I need you! Yes… You! I need your ideas, and most importantly I need your feedback. So please, contact me on twitter and let me know what you think. If you like what you see, please share the url for the store.
Without further ado…
Click to visit the RouterJockey shop
The post RouterJockey is launching a clothing line?!?!??? appeared first on Router Jockey.
Please join us in congratulating the following iPexpert students who have passed their CCIE lab!
Hesham Abdelkereem CCIE #40790 (Wireless & Collaboration)
The product that helped me was Video on Demand.
Nadeem Akbar CCIE #411610 (Wireless)
The CCIE Wireless Bootcamp helped me pass the exam.
Have you passed your CCIE lab exam and used any of iPexpert’s self-study products, or attended a CCIE Bootcamp? If so, we’d like to add you to our CCIE Wall of Fame!