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Generalized Linear Models(GLMs) Rough Notes

In case of Linear Models, we assume a linear relationship between the mean of the response variable and a set of explanatory variables with inference assuming that response variable has a Normal conditional distribution with constant variance. The Generalized Linear Model permits the distribution for the Response Variable other than the normal and permits modeling of non-linear functions of the mean. Linear models are special case of GLM.

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Weekend Reads 102822

Data security in the public cloud has been a concern since the computing medium emerged in the mid-2000s, but cloud providers are allaying fears of theft with a new concept: confidential computing.

Fewer than half of 5G users say they’ve experienced improvements in speed or reliability over 4G according to a new survey, but that is not going to stop some in telecoms pushing ahead with efforts to deliver an enhanced version branded 5.5G.

So we should all be concerned that Mark Cox, a Red Hat Distinguished Software Engineer and the Apache Software Foundation (ASF)’s VP of Security, this week tweeted, “OpenSSL 3.0.7 update to fix Critical CVE out next Tuesday 1300-1700UTC.”

These include multiple forms of wireless, artificial intelligence, and sustainability, according to Frances Karamouzis, distinguished vice president and analyst at Gartner, and external events are making IT pros’ decisions about them even more difficult.

As the priorities of IT are driven by the needs to support business goals, one of the increasingly important needs IT leaders must to pay attention to is attracting and retaining high-quality employees.

SBOMs are meant to be something like a nutrition label on the back of a grocery store Continue reading

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Worth Exploring: NetTowel

A few months ago, Urs Baumann created NetTowel, a very nice CLI wrapper around several popular libraries, including Jinja2, TTP, NetMiko and netaddr. Although it seems he got busy with other things in recent months, and the development stalled a bit, the tool is definitely worth exploring.

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Worth Exploring: NetTowel

A few months ago, Urs Baumann created NetTowel, a very nice CLI wrapper around several popular libraries, including Jinja2, TTP, NetMiko and netaddr. Although it seems he got busy with other things in recent months, and the development stalled a bit, the tool is definitely worth exploring.

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BrandPost: MSP or DIY: What Is the Best Option for Your SD-WAN Deployment?

The rate of SD-WAN adoption is quickly rising to the point of ubiquity. In an era of distributed environments — including applications, employees, cloud, Edge, and data centers — navigating network complexity has become an increasing common challenge.Recent ESG research found that 54% of survey respondents felt restrained by network complexity in terms of both operational efficiency and user experience. Impacted companies have two solutions for deploying SD-WAN: Do It Yourself (DIY) and or via Managed Service Providers (MSP). It’s up to IT leaders to choose the approach that will most effectively manage their deployments.To read this article in full, please click here

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Extreme earnings report: Wireless and cloud gains temper record backlogs

Despite problems getting parts and a gigantic backlog of orders to fill, Extreme Networks landed a record-setting first-quarter FY23 of nearly $300 million, up 11% year-over-year, and 7% quarter-over-quarter.The  backlog CEO Ed Meyercord referred to during the company’s quarterly earnings call this week sits at $555 million, also a record. To put it in perspective, that's nearly three full quarters of product revenue in backlog, mostly due to supply-chain issues. Concerns about the economy are also in the mix, but Meyercord said that when it comes to investing in networks, things look bright.To read this article in full, please click here

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Wi-Fi 6E Growing Pains For Apple

You may have seen that the new iPad Pro has Wi-Fi 6E support. That caused a lot of my wireless friends to jump out and order one, as I expected. As I previously mentioned, 2023 is going to be a big year for Wi-Fi 6E. I was wrong about the 6E radio on the new iPhone but given the direction that Apple is going with the iPad Pro and probably the MacBook as well we’re in for a lot of fun. Why? Because Apple is changing their stance on how to configure 6GHz networks.

An SSID By Any Other Name

If you’ve ever set up wireless networks before you know there are some different suggestions about how to configure the SSIDs with multiple bands. One school of thought says that you need to combine both 2.4GHz and 5GHz in the same SSID and let the device figure out which one is the best to use. This is the way that I have mine set up at home.

However, if you do a quick Google search you’ll find a lot of other wisdom that suggests creating two different SSIDs that only work on a single band. The thought process Continue reading

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Intel forced to cut jobs and spending as revenue continues to decline

Despite a plan to cut thousands of jobs and billions of dollars in annual spending, Intel remains vulnerable, say analysts.

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Hybrid’s Dominance Brings New Focus to the Data Center

Hybrid is the dominant infrastructure today and likely for the foreseeable future. As such, IT and data center managers will need to ensure both data center and cloud environments are highly available and responsive.

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Heavy Networking 653: Design, Deploy, And Operate With Nokia Data Center Fabric Solution (Sponsored)

Today’s Heavy Networking, sponsored by Nokia, dives into Nokia's fabric-based approach to data center automation and operations. That approach includes its SR Linux network OS, its Fabric Services System intent-based platform, its NetOps Development Kit, or NDK, and how all this ties together to address your operational life cycle across Day zero, Day 1, Day Two, and beyond.

The post Heavy Networking 653: Design, Deploy, And Operate With Nokia Data Center Fabric Solution (Sponsored) appeared first on Packet Pushers.

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Heavy Networking 653: Design, Deploy, And Operate With Nokia Data Center Fabric Solution (Sponsored)

Today’s Heavy Networking, sponsored by Nokia, dives into Nokia's fabric-based approach to data center automation and operations. That approach includes its SR Linux network OS, its Fabric Services System intent-based platform, its NetOps Development Kit, or NDK, and how all this ties together to address your operational life cycle across Day zero, Day 1, Day Two, and beyond.

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Could I Use netlab instead of GNS3?

I’m often getting questions along the lines of “I’m using GNS3. Could I replace it with netlab?"

TL&DR: No.

You need a set of functions to build a network lab:

• Virtualization environment (netlab supports VirtualBox, libvirt, Docker, Podman)
• An orchestration tool/system that will deploy network device images in such an environment (netlab supports Vagrant and containerlab)
• A tool that will build orchestration system configuration (netlab core functionality)

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Could I Use netlab instead of GNS3?

I’m often getting questions like “I’m using GNS3. Could I replace it with netlab?”

TL&DR: No.

You need a set of functions to build a network lab:

• Virtualization environment (netlab supports VirtualBox, libvirt, Docker, and Podman)
• An orchestration tool/system that will deploy network device images in such an environment (netlab supports Vagrant and containerlab)
• A tool that will build orchestration system configuration (netlab core functionality)

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Data Validation using Pydantic Models

In the realm of automation, scripts often thrive on the variables they receive. These variables determine the actions the script will perform. However, if a script encounters a variable in a format or data type it doesn't expect, it might throw an error with a message that's about as clear as mud. This is where data validation comes into play.

Validating the data passed to a script is like giving it a road map to success. It ensures that the script knows what to expect and how to handle it. Whether the data is coming from another script or an end device, validation helps prevent those cryptic error messages and keeps your automation journey smooth sailing.

What is Data Validation?

Data validation is like the gatekeeper of your data world—it's all about ensuring that the data you're dealing with is accurate, reliable, and fits the requirements of whatever you're trying to do with it. Think of it as quality control for your data before you start using it in your programs or analyses. There are various ways to validate data depending on what you need it for and what rules it needs to follow. And that's where pydantic swoops in Continue reading

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The Next Wave of Network Orchestration: MDSO

Demand for network automation and orchestration continues to rise as organizations reap the business and technical benefits it brings to their operations, including significant improvements in productivity, cost reduction and efficiency. As a result, many organizations are now looking to the next wave of network orchestration: orchestration across technology domains, more commonly known as Multi-Domain Service Orchestration (MDSO). Early adopters have learned that effectively leveraging automation and orchestration at the domain level doesn’t necessarily translate to the MDSO layer due to the different capabilities required to effectively coordinate and communicate across different technologies. While the potential benefits of MDSO are high, there are unique challenges in multidomain deployments that organizations must tackle. The most obvious difference when orchestrating across domains versus within specific domains is the need to design around the direction your network data will travel. Within a single domain, the activities are primarily focused north to south, and vice versa. Instructions are sent to the domain controller which executes the changes to the network functions. This makes single-domain orchestration relatively straightforward. When you start orchestrating across domains, however, things get a little more complex. Now you need to account for both north/south activities and also for a large Continue reading

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How Cisco’s Cloud Control Framework helps it comply with multiple security standards

Its open-source Cloud Control Framework gives Cisco a common template to meet security standards and regulatory requirements across the globe.

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How Cisco’s Cloud Control Framework helps it comply with multiple security standards

Its open-source Cloud Control Framework gives Cisco a common template to meet security standards and regulatory requirements across the globe.

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Hedge 152: Joel King on the network and DevOps

DevOps, SecDevOps, GitDevOps—stick DevOps on the end of anything, and it will sound cool, generation FOMO in thousands (maybe millions). What does DevOps really mean to network engineers, though? In this episode of The Hedge, we discuss examples of how the Three Ways, (described in Part One of The DevOps Handbook) of Flow, Feedback, and Continual Learning with Joel King, a leading light in this field.

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