Archive

Category Archives for "Networking"

DNS Centrality

How did we get to here? How did a network technology such as the Internet, which was designed to pass control away from the central network to the connected devices succumb to unprecedented levels of centrality?

NetApp makes big hybrid-cloud push

NetApp is making a major effort to support hybrid cloud with a batch of software announcements around storage products, converged infrastructure, and cloud-management services.The main news was the release of the latest version of its flagship ONTAP software, as well as updates to other products designed to help organizations build a better hybrid-cloud strategies.ONTAP is the operating system for NetApp’s FAS (hybrid flash-disk) and AFF (all-flash) storage arrays. The latest version, 9.9, adds automatic backup and tiering of on-premises data to NetApp’s StorageGRID object storage as well as to public clouds. It enhances multilevel file security and remote access management, supports continuous data availability for two-times larger MetroCluster configurations, and  more replication options for backup and disaster recovery for large data containers for NAS workloads. It can attain up to four times the performance for single LUN applications such as VMware datastores.To read this article in full, please click here

NetApp makes big hybrid-cloud push

NetApp is making a major effort to support hybrid cloud with a batch of software announcements around storage products, converged infrastructure, and cloud-management services.The main news was the release of the latest version of its flagship ONTAP software, as well as updates to other products designed to help organizations build a better hybrid-cloud strategies.ONTAP is the operating system for NetApp’s FAS (hybrid flash-disk) and AFF (all-flash) storage arrays. The latest version, 9.9, adds automatic backup and tiering of on-premises data to NetApp’s StorageGRID object storage as well as to public clouds. It enhances multilevel file security and remote access management, supports continuous data availability for two-times larger MetroCluster configurations, and  more replication options for backup and disaster recovery for large data containers for NAS workloads. It can attain up to four times the performance for single LUN applications such as VMware datastores.To read this article in full, please click here

Rescuing a Linux system from near disaster

The more you know about how Linux works, the better you'll be able do some good troubleshooting when you run into a problem. In this post, we're going to dive into a problem that a contact of mine, Chris Husted, recently ran into and what he did to determine what was happening on his system, stop the problem in its tracks, and make sure that it was never going to happen again.Disaster strikes It all started when Chris' laptop reported that it was running out of disk space--specifically that only 1GB of available disk space remained on his 1TB drive. He hadn't seen this coming. He also found himself unable to save files and in a very challenging situation since it is the only system he has at his disposal and he needs the system to get his work done.To read this article in full, please click here

Rescuing a Linux system from near disaster

The more you know about how Linux works, the better you'll be able do some good troubleshooting when you run into a problem. In this post, we're going to dive into a problem that a contact of mine, Chris Husted, recently ran into and what he did to determine what was happening on his system, stop the problem in its tracks, and make sure that it was never going to happen again.Disaster strikes It all started when Chris' laptop reported that it was running out of disk space--specifically that only 1GB of available disk space remained on his 1TB drive. He hadn't seen this coming. He also found himself unable to save files and in a very challenging situation since it is the only system he has at his disposal and he needs the system to get his work done.To read this article in full, please click here

A Decade of CCIE Certification

I was notified this week that I’m eligible for the 10-year CCIE plaque. Which means that it’s been a decade since I walked out of Cisco’s Building C in San Jose with a new number and a different outlook on my networking career. The cliche is that “so many things have changed” since that day and it’s absolutely accurate because the only constant in life is change.

Labbing On the Road

I think the first thing that makes me think about the passage of time since my certification is the fact that the lab where I took the exam no longer exists. Building C was sold to the company that owns and operates the San Francisco 49ers stadium just down Tasman drive from the old letter buildings. Those real estate locations were much more valuable to the NFL than to Cisco. I can’t even really go and visit my old stomping grounds any more because the buildings were gutted, renovated, and offered to other operations that aren’t from Cisco.

Now, you don’t even go to San Jose or RTP for the lab. Three years ago the labs in the US moved to Richardson, TX. The central aspect of the location Continue reading

In Central Asia: Experts Discuss Opportunities to Grow IXPs

When the Internet Society, Asian Development Bank, and the United Nations Economic and Social Commission for Asia and the Pacific examined the regional digital economy of Central Asia in 2015, it recommended investing in the development of Carrier-Neutral Internet Exchange Points (IXPs) to drive down connectivity costs and enable more people to connect on the […]

The post In Central Asia: Experts Discuss Opportunities to Grow IXPs appeared first on Internet Society.

Heavy Networking 582: The Future Of Networking With Nick McKeown

Nick McKeown, Professor of Electrical Engineering and Computer Science at Stanford University, stops by the Heavy Networking podcast to speculate on the future of networking. Professor McKeown has been a force behind the Software Defined Networking (SDN) movement and has co-founded successful startups including Nicira and Barefoot Networks.

The post Heavy Networking 582: The Future Of Networking With Nick McKeown appeared first on Packet Pushers.

Interconnect Anywhere — Reach Cloudflare’s network from 1,600+ locations

Interconnect Anywhere — Reach Cloudflare’s network from 1,600+ locations
Interconnect Anywhere — Reach Cloudflare’s network from 1,600+ locations

Customers choose Cloudflare for our network performance, privacy and security.  Cloudflare Network Interconnect is the best on-ramp for our customers to utilize our diverse product suite. In the past, we’ve talked about Cloudflare’s physical footprint in over 200+ data centers, and how Cloudflare Network Interconnect enabled companies in those data centers to connect securely to Cloudflare’s network. Today, Cloudflare is excited to announce expanded partnerships that allows customers to connect to Cloudflare from their own Layer 2 service fabric. There are now over 1,600 locations where enterprise security and network professionals have the option to connect to Cloudflare securely and privately from their existing fabric.

Interconnect Anywhere is a journey

Since we launched Cloudflare Network Interconnect (CNI) in August 2020, we’ve been focused on extending the availability of Cloudflare’s network to as many places as possible. The initial launch opened up 150 physical locations alongside 25 global partner locations. During Security Week this year, we grew that availability by adding data center partners to our CNI Partner Program. Today, we are adding even more connectivity options by expanding Cloudflare availability to all of our partners’ locations, as well as welcoming CoreSite Open Cloud Exchange (OCX) and Infiny by Epsilon Continue reading

Basic Linux Networking tips and tricks part-5: tcpdump

tcpdump-logo

Here is another post of the series on basic network troubleshooting and tools under Linux. In this post, I will talk about tcpdump. Other posts of the series This post is part of a series of basic Linux Networking tips and tricks. The other posts of this series are: The ip and nmcli commands The mtr command The ss and netstat commands The curl command tcpdump Introduction I think the most essential element to debug a network problem is a packet capture tool or sniffer, and the most common one…

The post Basic Linux Networking tips and tricks part-5: tcpdump appeared first on AboutNetworks.net.

Sunlight aims at more efficient virtualization

Virtualization software is dated and does not take full advantage of modern hardware, making it extremely power-inefficient and forcing data centers to overprovision hardware to avoid poor performance.That’s the pitch of Sunlight, a virtualization-software vendor whose products take advantage of technologies that didn’t exist when Xen, KVM, VMware and Hyper-V were first developed.[Get regularly scheduled insights by signing up for Network World newsletters.] “The cloud infrastructure or virtualization stacks have been designed and built 15 to 20 years ago,” said Kosten Metreweli, chief strategy officer of Sunlight. “So the big problem here is that back then, I/O, and particularly storage, was really slow. So fast forward, and we now have NVMe storage, which pushes millions of IOPS from a single device, which is orders of magnitude better than was possible just a few years ago.”To read this article in full, please click here

Sunlight aims at more efficient virtualization

Virtualization software is dated and does not take full advantage of modern hardware, making it extremely power-inefficient and forcing data centers to overprovision hardware to avoid poor performance.That’s the pitch of Sunlight, a virtualization-software vendor whose products take advantage of technologies that didn’t exist when Xen, KVM, VMware and Hyper-V were first developed.[Get regularly scheduled insights by signing up for Network World newsletters.] “The cloud infrastructure or virtualization stacks have been designed and built 15 to 20 years ago,” said Kosten Metreweli, chief strategy officer of Sunlight. “So the big problem here is that back then, I/O, and particularly storage, was really slow. So fast forward, and we now have NVMe storage, which pushes millions of IOPS from a single device, which is orders of magnitude better than was possible just a few years ago.”To read this article in full, please click here

Cisco upgrades intent-based-networking performance, security, analytics

Cisco brought new features to its DNA Center network-control platform that promise to improve performance, management analytics and security for its enterprise network customers.The new software features integration of a ThousandEyes agent that bulks-up the platform’s network-intelligence monitoring, a two-fold increase in the number of clients the system can support, and improved security and operational capabilities.NaaS is the future but it's got challenges DNA Center is the heart of Cisco’s intent-based networking strategy and is the vendor’s core-networking control platform supporting myriad services from analytics, network management and automation to assurance setting, fabric provisioning, and policy-based segmentation for wired and wireless enterprise networks. To read this article in full, please click here

Cisco upgrades intent-based-networking performance, security, analytics

Cisco brought new features to its DNA Center network-control platform that promise to improve performance, management analytics and security for its enterprise network customers.The new software features integration of a ThousandEyes agent that bulks-up the platform’s network-intelligence monitoring, a two-fold increase in the number of clients the system can support, and improved security and operational capabilities.NaaS is the future but it's got challenges DNA Center is the heart of Cisco’s intent-based networking strategy and is the vendor’s core-networking control platform supporting myriad services from analytics, network management and automation to assurance setting, fabric provisioning, and policy-based segmentation for wired and wireless enterprise networks. To read this article in full, please click here

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