Aruba boosts AI capabilities to help enterprises manage, troubleshoot the edge

Aruba is adding AIOps features to its Edge Services Platform (ESP) to help customers automate everyday tasks, shrink the time needed to find and fix problems, and increase edge security controls.Rolled out in 2020, Aruba ESP analyzes telemetry data generated from Aruba Wi-Fi or network switching gear and uses it to automatically optimize connectivity, discover network problems, and secure the overall edge environment. ESP builds a data lake of a customer’s data center, campus, and SD-WAN switch information, and it combines that data with statistics from billions of data points generated daily by Aruba devices worldwide.To read this article in full, please click here

Full Stack Journey 068: An Introduction To Pixie For Open-Source Kubernetes Observability

Today's Full Stack Journey podcast is all about Pixie, an "open source observability tool for Kubernetes applications." Pixie takes advantage of eBPF to capture telemetry data. Joining Scott to provide a beginner-level overview of Pixie is Fabian Ngala.

The post Full Stack Journey 068: An Introduction To Pixie For Open-Source Kubernetes Observability appeared first on Packet Pushers.

LiveAction Unifies Flow, Packets For Deep Network Visibility

LiveAction provides network and application monitoring that integrates flow records and packets. This integration gives network management teams a clear, clean view of network topology and applications traffic–even for the most complex, multi-vendor networks. LiveAction can also capture and analyze packets to help engineers troubleshoot problems and investigate incidents.

The post LiveAction Unifies Flow, Packets For Deep Network Visibility appeared first on Packet Pushers.

When the window is not fully open, your TCP stack is doing more than you think

When the window is not fully open, your TCP stack is doing more than you think

Over the years I've been lurking around the Linux kernel and have investigated the TCP code many times. But when recently we were working on Optimizing TCP for high WAN throughput while preserving low latency, I realized I have gaps in my knowledge about how Linux manages TCP receive buffers and windows. As I dug deeper I found the subject complex and certainly non-obvious.

In this blog post I'll share my journey deep into the Linux networking stack, trying to understand the memory and window management of the receiving side of a TCP connection. Specifically, looking for answers to seemingly trivial questions:

  • How much data can be stored in the TCP receive buffer? (it's not what you think)
  • How fast can it be filled? (it's not what you think either!)

Our exploration focuses on the receiving side of the TCP connection. We'll try to understand how to tune it for the best speed, without wasting precious memory.

A case of a rapid upload

To best illustrate the receive side buffer management we need pretty charts! But to grasp all the numbers, we need a bit of theory.

We'll draw charts from a receive side of a TCP flow, Continue reading

Enterprise SSD prices are in for a drop

CPU prices may be headed north, but thanks to an oversupply of NAND flash, SSD prices across the board are declining.The cause is an oversupply combined with the threat of a recession, according to Taiwanese market research firm TrendForce. The firm said a combination of slowing demand across all segments of the NAND memory business, along with a reluctance to invest in additional capacity, has led to the glut. Related: Intel, other chipmakers warn of price hikes As a result, TrendForce predicts consumer product prices will decline 8% to 13% in the third quarter of 2022, while enterprise SSDs will drop 5% to 10% in Q3, and the trend may continue into the fourth quarter if demand doesn’t improve.To read this article in full, please click here

Enterprise SSD prices are in for a drop

CPU prices may be headed north, but thanks to an oversupply of NAND flash, SSD prices across the board are declining.The cause is an oversupply combined with the threat of a recession, according to Taiwanese market research firm TrendForce. The firm said a combination of slowing demand across all segments of the NAND memory business, along with a reluctance to invest in additional capacity, has led to the glut. Related: Intel, other chipmakers warn of price hikes As a result, TrendForce predicts consumer product prices will decline 8% to 13% in the third quarter of 2022, while enterprise SSDs will drop 5% to 10% in Q3, and the trend may continue into the fourth quarter if demand doesn’t improve.To read this article in full, please click here

Ansible For Network Automation Lesson 8: Ansible And Idempotency – Video

This lesson covers the concept of idempotency and why it’s essential to Ansible. You can find the full playlist with all 8 videos on the Packet Pushers’ YouTube channel. You can subscribe to the Packet Pushers’ YouTube channel for more videos as they are published. It’s a diverse a mix of content from Ethan and […]

The post Ansible For Network Automation Lesson 8: Ansible And Idempotency – Video appeared first on Packet Pushers.

Tech Bytes: Nokia Fabric Services System Streamlines Network Automation For Application Stacks (Sponsored)

Today on the Tech Bytes podcast we welcome back sponsor Nokia to talk about a compelling feature in Nokia’s Fabric Services System. This feature, called Connect, lets Fabric Services System integrate with platforms such as VMware, OpenStack, and Kubernetes to streamline the provisioning of network services in Top Of Rack switches when new workloads or services are instantiated.

Tech Bytes: Nokia Fabric Services System Streamlines Network Automation For Application Stacks (Sponsored)

Today on the Tech Bytes podcast we welcome back sponsor Nokia to talk about a compelling feature in Nokia’s Fabric Services System. This feature, called Connect, lets Fabric Services System integrate with platforms such as VMware, OpenStack, and Kubernetes to streamline the provisioning of network services in Top Of Rack switches when new workloads or services are instantiated.

The post Tech Bytes: Nokia Fabric Services System Streamlines Network Automation For Application Stacks (Sponsored) appeared first on Packet Pushers.

Introducing Network RPA No-Code Process Automation: Gluware LiveStream June 28, 2022 (5/7) – Video

Gluware is introducing a new feature on its network automation platform, Network RPA, or Robotic Process Automation. Network RPA enables no-code process automation, meaning network engineers can easily stitch together automation workflows using a visual interface. Network RPA integrates with Stackstorm out of the box, meaning engineers can create workflows with everything Stackstorm supports, which […]

The post Introducing Network RPA No-Code Process Automation: Gluware LiveStream June 28, 2022 (5/7) – Video appeared first on Packet Pushers.

Sustainability goals drive data-center purchases

Data center operators are weighing new approaches to thermal management as they deal with growing compute requirements and strive to achieve sustainability goals. They’re not alone in prioritizing sustainability: Enterprise IT buyers are increasingly looking for data centers with sustainability credentials and are making purchasing decisions based on the presence of practices that reduce greenhouse gas emissions.That’s the crux of findings from research and advisory firm Omdia, which last week unveiled its Data Center Thermal Management and Sustainability Intelligence Service. The service is aimed at analyzing sustainable data-center best practices and strategies, with a focus on new technologies such as liquid cooling and energy storage systems.To read this article in full, please click here

Sustainability goals drive data-center purchases

Data center operators are weighing new approaches to thermal management as they deal with growing compute requirements and strive to achieve sustainability goals. They’re not alone in prioritizing sustainability: Enterprise IT buyers are increasingly looking for data centers with sustainability credentials and are making purchasing decisions based on the presence of practices that reduce greenhouse gas emissions.That’s the crux of findings from research and advisory firm Omdia, which last week unveiled its Data Center Thermal Management and Sustainability Intelligence Service. The service is aimed at analyzing sustainable data-center best practices and strategies, with a focus on new technologies such as liquid cooling and energy storage systems.To read this article in full, please click here

Rocky Linux 9 arrives with Peridot

Release 9 of Rocky Linux just made its public appearance on July 14, and the big news is something called Peridot, which anyone (yes, anyone) can use to reproduce Rocky Linux 9 from scratch on their own. This is a truly exciting turn for the Linux community.If you’re not familiar with Rocky Linux, don’t be too surprised that it made it to Release 9 and you’re just now tuning in. “Release 9” doesn’t mean that Rocky has gone through eight prior major releases. Instead, the name indicates its connection to RHEL 9. Rocky Linux began life as Release 8.3 in April 2021 as a replacement for CentOS, which was EOL’ed in December 2020.To read this article in full, please click here

Rocky Linux 9 arrives with Peridot

Release 9 of Rocky Linux just made its public appearance on July 14, and the big news is something called Peridot, which anyone (yes, anyone) can use to reproduce Rocky Linux 9 from scratch on their own. This is a truly exciting turn for the Linux community.If you’re not familiar with Rocky Linux, don’t be too surprised that it made it to Release 9 and you’re just now tuning in. “Release 9” doesn’t mean that Rocky has gone through eight prior major releases. Instead, the name indicates its connection to RHEL 9. Rocky Linux began life as Release 8.3 in April 2021 as a replacement for CentOS, which was EOL’ed in December 2020.To read this article in full, please click here

Cloudflare deployment in Guam

Cloudflare deployment in Guam
Cloudflare deployment in Guam

Having fast Internet properties means being as few milliseconds as possible away from our customers and their users, no matter where they are on Earth. And because of the design of Cloudflare's network we don't just make Internet properties faster by being closer, we bring our Zero Trust services closer too. So whether you're connecting to a public API, a website, a SaaS application, or your company's internal applications, we're close by.

This is possible by adding new cities, partners, capacity, and cables. And we have seen over and over again how making the Internet faster in a region also can have a clear impact on traffic: if the experience is quicker, people usually do more online.

Cloudflare’s network keeps increasing, and its global footprint does so accordingly. In April 2022 we announced that the Cloudflare network now spans 275 cities and the number keeps growing.

In this blog post we highlight the deployment of our data center in Hagatna, Guam.

Why a blog about Guam?

Guam is about 2,400 km from both Tokyo in the north and Manila in the west, and about 6,100 km from Honolulu in the east. Honolulu itself is the most remote major city in Continue reading

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