NSX Layer 2 VPN: Migrating workloads between Datacentres
Selecting a migration strategy
As a consultant within the NSX PSO practice, one of the conversations that comes up with customers often is how NSX enables migration from a legacy datacentre to an NSX managed datacentre. This was the case with a customer recently who were looking to move out of a datacentre that was scheduled to be decommissioned. The problem was that the customer workloads needed to be migrated to a Logical Switch within the new datacentre without changing IP addressing, and with minimal downtime.
There are four approaches available to us with NSX for vSphere that might help solve this problem:
- Universal Logical Switching – we could deploy NSX to the remote site and extend L2 networks using Cross-vCenter NSX and Universal Logical Switches, then migrate the workload
- Native L2 Bridging – within the same datacentre we could use the NSX Distributed Logical Router native functionality to create a Layer 2 Bridge between a VLAN and a Logical Switch
- Hardware VTEP – using a compatible hardware device from a VMware Partner that acts as a VXLAN Tunnel Endpoint and can bridge between a VLAN and a Logical Switch
- Layer 2 VPN – using an NSX managed Edge, or Continue reading
AT&T, Sprint, T-Mobile and Verizon Use Blockchain as Part of Mobile Authentication Platform
The platform interoperates with the GSMA's Mobile Connect technology.
The Server Market Booms, And It Could Last For A While
The general consensus, for as long as anyone can remember, is that there is an insatiable appetite for compute in the datacenter. Were it not for the constraints of budgets, for both the acquisition of iron, the facilities to house it, the electricity to power and cool it, and the people to manage it, it is safe to say that the installed base of servers worldwide would be much larger than it is.
But the world doesn’t work that way, and there are constraints. But thanks to ever more complex applications, ever richer media, and a burning desire to save …
The Server Market Booms, And It Could Last For A While was written by Timothy Prickett Morgan at The Next Platform.
Empowering Education for the Next Generation In Paraguay
Colegio Técnico National (CTN) of Asunción is one of the top schools in Paraguay offering the technical baccalaureate. It was created by the country’s Ministry of Education and Science in 1980. The school is attended by more than 1,500 students from the capital city and from nearby towns like Luque, Fernando de la Mora, San Lorenzo, Lambaré, and Capiatá.
As with most of Paraguayan state schools, the CTN does not have the right infrastructure for an appropriate development of modern education. The little equipment owned by the CTN, donated more than 25 years ago by private or charitable institutions, are today too obsolete. Classes do not have any type of interactive material due to the lack of an Internet connection, equipped laboratories, and modern computers. A new project lead by the Paraguay Chapter and supported by the Internet Society Beyond the Net Funding Programme will provide the school with Internet access and set up a high-tech electronics lab to ensure a quality environment for the development of innovative solutions based on robotics, automation, e-learning systems, and the Internet of Things. 250 students will be trained in the use of online tools. ReVa , a virtual library, will be available Continue reading
A Guide To Securing Docker and Kubernetes Containers With a Firewall
Containers present a hefty challenge for traditional firewall rules and iptables.
PQ 141: Using Open-Source FastNetMon For DDoS Detection
FastNetMon is open-source software for DDoS detection. On today's Priority Queue we explore the software & its capabilities with project leader Pavel Odintsov. The post PQ 141: Using Open-Source FastNetMon For DDoS Detection appeared first on Packet Pushers.
Ansible Tower Feature Spotlight: Instance Groups and Isolated Nodes
As we continue to improve Red Hat Ansible Tower, we’ve focused on allowing you to automate in more flexible ways, no matter your deployment scenario. As part of this, we’ve introduced two new features: Instance Groups and Isolated Nodes. These new features allow you to use Ansible Tower automation more flexibly in ways that match both the structure of your organization and your infrastructure.
Instance Groups
What is an instance group?
Ansible introduced Clusters in Ansible Tower 3.1. Tower Clusters allow you to add capacity to your Ansible Tower environment - the more nodes in your Tower Cluster, the more job execution capacity you have. If you have to run many jobs simultaneously, adding more nodes to the cluster lets you run them all without queueing.
However, this just gives you an additional mass of capacity. If you just have one group using a Tower instance, that may be enough. But we know that many Ansible Tower instances are shared among teams, groups, and organizations that may have different uses for their automation.
That’s why, in Ansible Tower 3.2, we created Instance Groups.
An Ansible Tower Instance group is a set of cluster nodes dedicated for a particular purpose. Continue reading
NetDevOpEd: Demand more from your vendors
I was at the London Network Automation meetup this past week. London has a great community of network engineers that are eager to improve their current skill set and make their work lives easier. This meetup was geared towards learning new technologies around automation in the networking industry. There were talks about new ways to implement various existing automation tools, as well as real world discussions around how automation was implemented in the industry.
One common theme I experienced was how eager all network engineers are to open the scripts and code they write to administer their network devices. The sense of community and camaraderie amongst peers in this industry is one of the reasons I really enjoy working in this field. This is a real change in the industry. Even one year ago, the majority of network engineers did not have accounts on github or gitlab. Now, all these same network engineers exchange github and gitlab accounts like business cards. I couldn’t be happier with the direction this industry has taken.
However, I also couldn’t help but think about the irony of this situation. These creative and intelligent engineers are creating innovative scripts to shoehorn solutions into closed systems. Continue reading
IoT Will Force HPC Spending–But Not For the Reasons You Think
The high performance computing market might get some windfall from the processing requirements of IoT and edge devices, but the real driver for spending will come well before the device ever hits the market.
The rise in IoT and edge device demand means an exponential increase in the number of devices that need to be modeled, simulated and tested and this means greater investment in HPC hardware as well as the engineering software tools that have generally served the HPC set.
In other words, it is not the new, enlarged, complex dataset from IoT and edge that presents the next …
IoT Will Force HPC Spending–But Not For the Reasons You Think was written by Nicole Hemsoth at The Next Platform.
How Edge Computing Is Transforming IT Infrastructure
New technologies such as IoT and cloud architectures are driving computing to the edge. Companies must embrace this trend in order to survive.