Episode 16 – Overview of Overlays

Whether it’s a single GRE tunnel or a full Datacenter fabric, network overlays have played significant role in empowering network engineers to implement policy beyond simple IP reachability. In episode 16 of Network Collective we take a broad look at the types of overlays available to use in our networks, why you might want to implement an overlay, and some of the things to watch out for when employing overlay networking. Joining the NC hosts are two excellent guests: Ron Fuller, currently an SE at VMware on the NSX product team, and Warren Jackson, Technical Architect at WWT with a focus on SD-WAN technology.

Ron Fuller

Guest

Warren Jackson

Guest

Jordan Martin

Co-Host

Eyvonne Sharp

Co-Host

Phil Gervasi

Co-Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Episode 16 – Overview of Overlays appeared first on Network Collective.

IDG Contributor Network: Conventional computer vision coupled with deep learning makes AI better

Computer vision is fundamental for a broad set of Internet of Things (IoT) applications. Household monitoring systems use cameras to provide family members with a view of what’s going on at home. Robots and drones use vision processing to map their environment and avoid obstacles in flight. Augmented reality glasses use computer vision to overlay important information on the user’s view, and cars stitch images from multiple cameras mounted in the vehicle to provide drivers with a surround or “bird’s eye” view which helps prevent collisions. The list goes on.Over the years, exponential improvements in device capabilities including computing power, memory capacity, power consumption, image sensor resolution, and optics have improved the performance and cost-effectiveness of computer vision in IoT applications. This has been accompanied by the development and refinement of sophisticated software algorithms for tasks such as face detection and recognition, object detection and classification, and simultaneous localization and mapping.To read this article in full, please click here

Why 2018 will be the year of the WAN

IDG Software-defined WAN (SD-WAN) technology is sweeping across the industry, growing from an emerging technology in 2017 to become mainstream in 2018.Research firm IDC predicts SD-WAN revenues will hit $2.3 billion in 2018, growing 69% on a compound annual growth rate to reach more than $8 billion by 2021. “2017 saw a lot of early adopters of SD-WAN that were limited to maybe two or three sites,” says IDC networking analyst Brad Casemore. “Now, rollouts are getting a lot bigger; we’re starting to see hockey-stick inflection point.”To read this article in full, please click here

Why 2018 will be the year of the WAN

IDG Software-defined WAN (SD-WAN) technology is sweeping across the industry, growing from an emerging technology in 2017 to become mainstream in 2018.Research firm IDC predicts SD-WAN revenues will hit $2.3 billion in 2018, growing 69% on a compound annual growth rate to reach more than $8 billion by 2021. “2017 saw a lot of early adopters of SD-WAN that were limited to maybe two or three sites,” says IDC networking analyst Brad Casemore. “Now, rollouts are getting a lot bigger; we’re starting to see hockey-stick inflection point.”To read this article in full, please click here

Wi-Fi in 2018: What will the future look like?

IDG The world of enterprise Wi-Fi moves fast, but 2018 is going to see gear based on 802.11ac Wave 2 remain the state of the art – its successor, 802.11ax, is still one for the future.Wave 2 is the latest Wi-Fi standard to be certified by the IEEE. Its main technological innovation is MU-MIMO, or multi-user multiple-input, multiple-output. In practice, this means that manufacturers can create access points that talk to multiple devices at the same instant. Earlier APs had to handle multiple streams sequentially.To read this article in full, please click here

Wi-Fi in 2018: What will the future look like?

IDG The world of enterprise Wi-Fi moves fast, but 2018 is going to see gear based on 802.11ac Wave 2 remain the state of the art – its successor, 802.11ax, is still one for the future.Wave 2 is the latest Wi-Fi standard to be certified by the IEEE. Its main technological innovation is MU-MIMO, or multi-user multiple-input, multiple-output. In practice, this means that manufacturers can create access points that talk to multiple devices at the same instant. Earlier APs had to handle multiple streams sequentially.To read this article in full, please click here

Wi-Fi i2018: What does the future look like?

IDG The world of enterprise Wi-Fi moves fast, but 2018 is going to see gear based on 802.11ac Wave 2 remain the state of the art – its successor, 802.11ax, is still one for the future.Wave 2 is the latest Wi-Fi standard to be certified by the IEEE. Its main technological innovation is MU-MIMO, or multi-user multiple-input, multiple-output. In practice, this means that manufacturers can create access points that talk to multiple devices at the same instant. Earlier APs had to handle multiple streams sequentially.To read this article in full, please click here

Wi-Fi 2018: What does the future look like?

IDG The world of enterprise Wi-Fi moves fast, but 2018 is going to see gear based on 802.11ac Wave 2 remain the state of the art – its successor, 802.11ax, is still one for the future.Wave 2 is the latest Wi-Fi standard to be certified by the IEEE. Its main technological innovation is MU-MIMO, or multi-user multiple-input, multiple-output. In practice, this means that manufacturers can create access points that talk to multiple devices at the same instant. Earlier APs had to handle multiple streams sequentially.To read this article in full, please click here

Hot IoT tech trends for 2018

IDG Instrumentation is coming – 2018 promises the IoT-ification of a lot of existing technology, plus edge computing, improved analytics and even some security improvements, if we’re reading these tea-leaves correctly.IoT has been one of the biggest phenomena in technology for years, but 2018 is the year that it begins to really shake up the rank-and-file of enterprise users, according to Christian Renaud, director of 451 Research’s IoT practice. To read this article in full, please click here

Five predictions for the hybrid cloud market in 2018

IDG Despite the public cloud seemingly grabbing the lion’s share of attention in the cloud market, private and hybrid cloud computing markets have been growing robustly as well and experts predict they will only gain importance in 2018 and beyond.“Few companies have enjoyed the expected benefits of private infrastructure-focused clouds, but a renewed focus on developer empowerment, stepping into cloud on-premises first, and a raft of new tech stack (will) spark new private cloud interest and experimentation,” Forrester research analyst Dave Bartoletti and colleagues predict in their 2018 look-ahead for the cloud market.  To read this article in full, please click here

Hottest IoT applications for 2018

IDG IoT is going to expand on its current strengths in the coming year, broadening its presence in the industrial, energy and transportation sectors and continuing to see growing usage in fields like healthcare and retail.Rohit Mehra, IDC vice president for network infrastructure research, said that those up-and-coming IoT sectors are getting new applications that make their deployment more attractive to end-users.To read this article in full, please click here

Micro-modular data centers set to multiply

IDG Mini data centers are sprouting up on the edges of networks – in factories, on container ships, and piggybacked on cellular base stations – as enterprises and service providers look to embed compute and storage capacity closer to where data is being generated.So-called micro-modular data centers (MMDC) aren’t new, and they’re not the only distributed edge computing solution. But they’re growing in popularity with a compound annual growth rate of 42% over the last three years, according to 451 Research. Sales of MMDCs are forecast to reach nearly $30 million in 2018 from $18 million in 2017. While the market appears small, MMDC sales in 2018 will represent about 2,000 new installations and be a part of projects that cost many times greater than that, according to the research firm.To read this article in full, please click here

Micro-modular data centers set to multiply

IDG Mini data centers are sprouting up on the edges of networks – in factories, on container ships, and piggybacked on cellular base stations – as enterprises and service providers look to embed compute and storage capacity closer to where data is being generated.So-called micro-modular data centers (MMDC) aren’t new, and they’re not the only distributed edge computing solution. But they’re growing in popularity with a compound annual growth rate of 42% over the last three years, according to 451 Research. Sales of MMDCs are forecast to reach nearly $30 million in 2018 from $18 million in 2017. While the market appears small, MMDC sales in 2018 will represent about 2,000 new installations and be a part of projects that cost many times greater than that, according to the research firm.To read this article in full, please click here

What to expect from Cisco in 2018

IDG As the preeminent networking company shapes its plans for 2018, analysts and users say Cisco is at somewhat of an inflection point, transitioning from a hardware-based company to an integrated hardware and software-focused one.In doing so, Cisco has plotted the next generation of its network management products in the form of intent-based networking. Meanwhile, as hardware sales growth slows due to workloads shifting to the public cloud, the company eyes the Internet of Things and edge computing as new frontiers for revenue growth.To read this article in full, please click here

What to expect from Cisco in 2018

IDG As the preeminent networking company shapes its plans for 2018, analysts and users say Cisco is at somewhat of an inflection point, transitioning from a hardware-based company to an integrated hardware and software-focused one.In doing so, Cisco has plotted the next generation of its network management products in the form of intent-based networking. Meanwhile, as hardware sales growth slows due to workloads shifting to the public cloud, the company eyes the Internet of Things and edge computing as new frontiers for revenue growth.To read this article in full, please click here

The future of storage: Pure Storage CEO Charlie Giancarlo shares his predictions

Earlier this year, Pure Storage announced Charlie Giancarlo as CEO. Prior to leading Pure Storage, Giancarlo was a managing director and senior advisor at Silver Lake Partners.If Giancarlo's name is familiar to you, it should because he held a number of executive positions at Cisco, including chief technology officer and chief development officer, which is where I got to know him.  Many people, myself included, consider Giancarlo one of the masterminds behind Cisco’s meteoric rise, as he was one of the architects that moved the company into new markets, such as ethernet switching, VoIP, Wi-Fi and TelePresence.Also on Network World: Get ready for new storage technologies and media The one thing I always found impressive about Giancarlo is that we could be discussing the latest business and stock market trends and then a few minutes later transition into how the silicon inside a router was designed and the technical differentiation it creates. To read this article in full, please click here

The future of storage: Pure Storage CEO Charlie Giancarlo shares his predictions

Earlier this year, Pure Storage announced Charlie Giancarlo as CEO. Prior to leading Pure Storage, Giancarlo was a managing director and senior advisor at Silver Lake Partners.If Giancarlo's name is familiar to you, it should because he held a number of executive positions at Cisco, including chief technology officer and chief development officer, which is where I got to know him.  Many people, myself included, consider Giancarlo one of the masterminds behind Cisco’s meteoric rise, as he was one of the architects that moved the company into new markets, such as ethernet switching, VoIP, Wi-Fi and TelePresence.Also on Network World: Get ready for new storage technologies and media The one thing I always found impressive about Giancarlo is that we could be discussing the latest business and stock market trends and then a few minutes later transition into how the silicon inside a router was designed and the technical differentiation it creates. To read this article in full, please click here

Data center cooling market set to explode in the coming years

The worldwide market for data center cooling equipment will reach $20 billion by 2024, a massive jump over the $8 billion spent in 2016. That is the finding of a report from Global Market Insights (GMI), which says cooling systems account for approximately 40 percent of the total energy consumption on average.Data center operators have been obsessed with lowering their PUE, or power usage effectiveness, the ratio of power consumed by the hardware to power consumed to cool it. The problem is that while Intel, AMD and the rest of the component vendors obsess over lowering thermals and overall heat generated, the density of these servers is increasing.To read this article in full, please click here

Data center cooling market set to explode in the coming years

The worldwide market for data center cooling equipment will reach $20 billion by 2024, a massive jump over the $8 billion spent in 2016. That is the finding of a report from Global Market Insights (GMI), which says cooling systems account for approximately 40 percent of the total energy consumption on average.Data center operators have been obsessed with lowering their PUE, or power usage effectiveness, the ratio of power consumed by the hardware to power consumed to cool it. The problem is that while Intel, AMD and the rest of the component vendors obsess over lowering thermals and overall heat generated, the density of these servers is increasing.To read this article in full, please click here

Check Point Firewall VM Disk Resize

How Does Internet Work - We know what is networking

It is related to Check Point MGMT VM with R80.10 in my story, but you would as well want to resize Check Point gateway firewall hardware box or VM. I was searching for a simple solution and found different ones that didn’t work for me, so here are the steps that you need to go through when you resize your CheckPoint VM disk in vCenter and then need to expand the partition inside Check Point VM in order to use the additional space. Of course, you did choose too small HDD for your VM when you created it and now

Check Point Firewall VM Disk Resize