Who’s Pushing Layer-2 VPN Services?
Here’s another great point Tiziano Tofoni raised in his comment to my EVPN in small data center fabrics blog post:
I cannot understand the usefulness of L2 services. I think that the preference for L2 services has its origin in the enterprise world (pushed by well known $vendors) while ISPs tend to work at Layer 3 (L3) only, even if they are urged to offer L2 services by their customers.
Some (but not all) ISPs are really good at offering IP transport services with fixed endpoints. Some Service Providers are good at offering per-tenant IP routing services required by MPLS/VPN, but unfortunately many of them simply don’t have the skills needed to integrate with enterprise routing environments.
Read more ...Chatbots Gone Wild
I am pleased to publish an infographic called "Conquering The World - Chatbots Gone Wild". This infographic contains statistics that highlight the impact of Artificial Inteligence (AI) chatbots on business and other sectors. In online business they interact with customers and boost sales by saving time and cost. They become more and more useful as the customers are getting more comfortable with technology through voice commands. According to the graphic, the business trust in chatbots is going to grow as the 80% of businesses claimed they already used or plan to use chatbots by 2020.
I am glad to thank BestVPNs for kind permission to republish the original infographic on my blog.
Note: Click image to enlarge.
Chatbots Gone Wild
I am pleased to publish a link to infographic called "Conquering The World - Chatbots Gone Wild". This infographic contains statistics that highlight the impact of Artificial Inteligence (AI) chatbots on business and other sectors. In online business they interact with customers and boost sales by saving time and cost. They become more and more useful as the customers are getting more comfortable with technology through voice commands. According to the graphic, the business trust in chatbots is going to grow as the 80% of businesses claimed they already used or plan to use chatbots by 2020.
The link below is published with the kind permission of 16best.net.
HTTP Analytics for 6M requests per second using ClickHouse
One of our large scale data infrastructure challenges here at Cloudflare is around providing HTTP traffic analytics to our customers. HTTP Analytics is available to all our customers via two options:
- Analytics tab in Cloudflare dashboard
- Zone Analytics API with 2 endpoints
- Dashboard endpoint
- Co-locations endpoint (Enterprise plan only)
In this blog post I'm going to talk about the exciting evolution of the Cloudflare analytics pipeline over the last year. I'll start with a description of the old pipeline and the challenges that we experienced with it. Then, I'll describe how we leveraged ClickHouse to form the basis of a new and improved pipeline. In the process, I'll share details about how we went about schema design and performance tuning for ClickHouse. Finally, I'll look forward to what the Data team is thinking of providing in the future.
Let's start with the old data pipeline.
Old data pipeline
The previous pipeline was built in 2014. It has been mentioned previously in Scaling out PostgreSQL for CloudFlare Analytics using CitusDB and More data, more data blog posts from the Data team.
It had following components:
- Log forwarder - collected Cap'n Proto formatted logs from the edge, notably DNS and Nginx logs, Continue reading
Cisco Adds Workload Protection To Tetration
Cisco adds workload protection capabilities to its Tetration appliance via an agent that runs on application hosts.Kubernetes Project First to Earn a CNCF Diploma
The project was the first adopted by CNCF.
Broadcom’s Jericho2 Programmable Chip Claims 10Tb/s Switching Capacity
AT&T's Chris Rice, SVP of Domain 2.0, praises the new chip.
VMware SVP, GM Jeff Jennings Jumps Ship for Google
He'll report to VMware Founder and former CEO Diane Greene at Google Cloud.
Don’t forget to tune into our CCNA Kickoff Session tomorrow!
Watch our March 2018 CCNA Kickoff Session with Keith Bogart TOMORROW at 1:30 PM EST.
This kickoff session for those who are interested in, or have started to study for the CCNA certification. In this free session, we will cover common trouble areas that most people experience when getting started with their certification. Topics include: how to approach making a study schedule, strategies for not becoming overwhelmed during the study process, deciding whether to take one test or two to get your CCNA, what to expect when you walk into the testing center, which topics to study and how in depth, and what study tools can be useful. Keith will also discuss the testing experience and the CCNA Certification test format.
When: March 7th at 10:30 am PST/ 1:30 pm EST
Estimated Length: 3 hours
Instructor: Keith Bogart CCIE #4923
Cost: FREE
There’s a New SD-WAN Kid on the Block: Netsurion
Netsurion's SD-WAN is targeted to multi-tenant enterprises.
NAT To Be Missed At SXSW
We’re at the EDGE of our seats, about to LANd in Austin, Texas in route for SXSW. (TKIP, hip, hooray!)
ARP you going to be there? We R going to have three epoch sessions by Cloudflare speakers. Ifdown, seems apt you could SELECT to JOIN. Cat make it? Not a bg deal, wget it (though it mega hertz we won’t C you). All the audio from the three sessions will be recorded, you can listen to the cd.
WPS! I almost forgot to tel(net) you whois going to be there, and WAN and where to go.
On Friday, March 9, I’m moderating a panel with Emily Schechter from Google, Aaron DeVera from Deloitte and Gabe Kassel from eero about how Wi-Fi networks work and WEP happens when attackers coax people into joining insecure networks. It’s at Salon K in the Hilton at 3:30PM.
On Sunday the 11th, Nitin Rao is on a panel with Heather West from Mozilla, Stefan Lederer from Bitmovin and Fred Benenson from Unlimited Liability Corporation LLC about the impact of the recent revocation of Net Neutrality rules on online video streaming. It’s at 11AM at Salon J in the Continue reading
Nokia Optical Chipset Pushes Limits of Speed, Efficiency
The new programmable chipset nears Shannon's limit in terms of performance.
DFS and Low Points
On a recent history of networking episode, Alia talked a little about Maximally Redundant Trees (MRTs), and the concept of Depth First Search (DFS) numbering, along with the idea of a low point. While low points are quickly explained in my new book in the context of MRTs, I thought it worthwhile to revisit the concept in a blog post. Take a look at the following network:
On the left side is a small network with the nodes (think of these as routers) being labeled from A through G. On the right side is the same network, only each node has been numbered by traversing the graph, starting at A. This process, in a network, would either require some device which knows about every node and edge (link) in the network, or it would require a distributed algorithm that “walks” the network from one node to another, numbering each node as it is touched, and skipping any node that has already been visited (again, for more details on this, please see the book).
Once this numbering has been done, the numbers now produce this interesting property: if you remove the parent of any node, and the node can still reach Continue reading