Cisco Live 2023 – Is the conference worth the price?

Cisco Live US 2023

Cisco Live US 2023 will take place from June 04 to 08 in Las Vegas. I have just registered, and this will be my 10th time attending. However, the question arises: is the Cisco Live conference worth the price? Travel and Accommodation I will not consider the cost of travel and accommodation in this post. This introduces too many variables depending on where the conference is, where you are coming from, and what your preferences are for accommodations. We’re only going to talk about the cost and benefits of attending…

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Part 4 – Monitoring PSN Load Balancing

The best way to know that your configuration is working properly is to measure with a tool outside of ISE.  Unfortunately, authentications per second is not available via SNMP or the REST API.  What does happen is for each authentication a SYSLOG message is generated.  The following messages are for every passed and failed authentication: […]

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Part 3 – IOS-XE Load Balancing

Cisco is a large organization.  Sometimes different software development teams don’t talk to one another as much as we would like.   As it happens, the IOS-XE team developed a way of load balancing RADIUS request across multiple RADIUS servers.  I can’t claim to have read every Cisco whitepaper and I haven’t seen every Cisco Live […]

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Part 2 – Enter the Load Balancer

In Part 1 we explored the simplest configuration possible.  Now let’s introduce a load balancer appliance. I’m just going to put it out there.  Load balancers are a necessary evil.  They are for protocols that are too dumb to figure out how to load balance themselves at the application layer.  But we’re going to find […]

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Part 1: Cisco ISE Load Balancing

There are many ways to build a Cisco Identity Services Engine (ISE) installation.  This is a four-part series on load balancing multiple RADIUS servers and we’ll use Cisco’s Identity Services Engine in our examples.  If you want to jump ahead: Part 1: This Page! Part 2: Load Balancer Appliances Part 3: Simple, Fast, Cheap… all […]

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Streamline Your Ansible Module Development with Content Builder

Photo by Hush Naidoo Jade Photography on Unsplash

Are you tired of manually creating Ansible modules for every new tool, cloud service, or appliance you need to manage? Look no further than the Ansible Content Builder. This powerful Python tool can generate Ansible modules for any appliance or service with a network CLI, NETCONF, or OpenAPI. In this blog post, we'll show you how to use the Content Builder to scaffold your Ansible modules to create good, consistent content for your cloud platform of choice. We'll also explore how the Content Builder can help you onboard new tools and services into the Ansible ecosystem with ease. So if you're looking to supercharge your Ansible workflow and automate any cloud platform, this post is for you!

The Ansible Content Collections for hybrid cloud automation house multiple modules. These modules handle the creation, deletion, modification (and more) of cloud resources. While developing individual modules for different resources of the cloud platform can lead to modularity and ease of use, reinventing the wheel can be error-prone and time-consuming. Standardizing the common steps that are similar but differ based on limited parameters can solve many problems encountered while developing these modules. This is achieved Continue reading

Building a Small Network with ChatGPT

I must be a good prompt engineer – every time I ask ChatGPT something really simple it spews out nonsense. This time I asked it to build a small network with four routers:

I have a network with four Cisco routers (A,B,C,D). They are connected as follow: A-B, B-C, A-D, D-C. Each router has a loopback interface. Create router configurations that will result in A being able to reach loopback interfaces of all other routers.

Here’s what I got back1:

Here’s an example configuration for the four routers that should allow Router A to reach the loopback interfaces of all other routers:

Building a Small Network with ChatGPT

I must be a good prompt engineer – every time I ask ChatGPT something really simple it spews out nonsense. This time I asked it to build a small network with four routers:

I have a network with four Cisco routers (A,B,C,D). They are connected as follow: A-B, B-C, A-D, D-C. Each router has a loopback interface. Create router configurations that will result in A being able to reach loopback interfaces of all other routers.

Here’s what I got back1:

Here’s an example configuration for the four routers that should allow Router A to reach the loopback interfaces of all other routers:

Announcing VMware HCX+ Initial Availability

If you had to sum up multi-cloud management in a single word, “complex” would be a fair choice. Although multi-cloud strategies vary from one organization to the next—i.e., some use a mix of public and private clouds while others might use only public or only private infrastructures—all multi-cloud architectures significantly increase the complexity and challenges that IT organizations must navigate.

Today, we’re excited to announce a new offering, HCX+, designed to help mitigate the challenges of thriving in a multi-cloud world. By helping to streamline and accelerate workload migration and mobility between on-premises, public cloud, and private cloud environments, HCX+ simplifies complex processes like data center modernization, hardware refresh, data center consolidation, data center evacuation, cloud migration, data center extension, cloud bursting, and cloud rebalancing.

Keep reading for an overview of the major benefits and features that HCX+ brings to the table.

Announcing HCX+ Initial Availability

HCX+, which is in initial availability as of today, is a SaaS-based workload migration and mobility service from VMware that provides centralized management, orchestration, and observability for migration, repatriation, and rebalancing initiatives across multi-cloud environments.

HCX+ builds on VMware’s existing HCX solution, enabling easier and faster configuration and operability. With HCX+, migration Continue reading

Stratus Technologies release latest version of ftServer edge systems

Edge server maker Stratus Technologies today announced that the 12th generation of its ftServer line is now on sale, bringing new hardware upgrades, improved resiliency for mission-critical workloads and, in time, support for a broader range of operating systems.The latest ftServers come in four main configurations. The 6920 platform, designed for rigorous data- and transaction-intensive work in large data centers or similar, is the largest, while the 6910 is designed to fit into smaller facilities. The 4920 and 2920, respectively, scale back size and capability to fit into medium-size facilities and remote offices, and running individual applications on shop floors or in industrial plants.To read this article in full, please click here

Stratus Technologies release latest version of ftServer edge systems

Edge server maker Stratus Technologies today announced that the 12th generation of its ftServer line is now on sale, bringing new hardware upgrades, improved resiliency for mission-critical workloads and, in time, support for a broader range of operating systems.The latest ftServers come in four main configurations. The 6920 platform, designed for rigorous data- and transaction-intensive work in large data centers or similar, is the largest, while the 6910 is designed to fit into smaller facilities. The 4920 and 2920, respectively, scale back size and capability to fit into medium-size facilities and remote offices, and running individual applications on shop floors or in industrial plants.To read this article in full, please click here

Failed hard drives lasted less than three years, analysis finds

Failed hard disk drives ran for an average of 25,233 hours before their demise, which translates to a lifespan of two years and 10 months.That’s according to Secure Data Recovery, which has a specific perspective on the matter. It specializes in salvaging data from failed hard drives, so pretty much every hard drive that it sees isn’t working properly, which gives it the opportunity to spot some patterns in hard drive longevity. (Secure Data Recovery’s analysis is different from the quarterly hard-drive report from cloud storage vendor Backblaze, which focuses on the few hard drives that fail out of the hundreds of thousands that it uses.)To read this article in full, please click here

Failed hard drives lasted less than three years, analysis finds

Failed hard disk drives ran for an average of 25,233 hours before their demise, which translates to a lifespan of two years and 10 months.That’s according to Secure Data Recovery, which has a specific perspective on the matter. It specializes in salvaging data from failed hard drives, so pretty much every hard drive that it sees isn’t working properly, which gives it the opportunity to spot some patterns in hard drive longevity. (Secure Data Recovery’s analysis is different from the quarterly hard-drive report from cloud storage vendor Backblaze, which focuses on the few hard drives that fail out of the hundreds of thousands that it uses.)To read this article in full, please click here

Day Two Cloud 190: Serious Public Clouds Invest In Infrastructure With Charles Fitzgerald

On today's Day Two Cloud we dive into how the public clouds spend their money and what IT and engineering folks can learn from those spending patterns. We also look at the notion of cloud repatriation and how prevalent (or not) it is. Our guest is Charles Fitzgerald, a CapEx obsessive who writes the Platformonomics blog.

The post Day Two Cloud 190: Serious Public Clouds Invest In Infrastructure With Charles Fitzgerald appeared first on Packet Pushers.

Introducing Cloudflare’s new Network Analytics dashboard

Introducing Cloudflare’s new Network Analytics dashboard
Introducing Cloudflare’s new Network Analytics dashboard

We’re pleased to introduce Cloudflare’s new and improved Network Analytics dashboard. It’s now available to Magic Transit and Spectrum customers on the Enterprise plan.

The dashboard provides network operators better visibility into traffic behavior, firewall events, and DDoS attacks as observed across Cloudflare’s global network. Some of the dashboard’s data points include:

  1. Top traffic and attack attributes
  2. Visibility into DDoS mitigations and Magic Firewall events
  3. Detailed packet samples including full packets headers and metadata
Introducing Cloudflare’s new Network Analytics dashboard
Network Analytics - Drill down by various dimensions
Introducing Cloudflare’s new Network Analytics dashboard
Network Analytics - View traffic by mitigation system

This dashboard was the outcome of a full refactoring of our network-layer data logging pipeline. The new data pipeline is decentralized and much more flexible than the previous one — making it more resilient, performant, and scalable for when we add new mitigation systems, introduce new sampling points, and roll out new services. A technical deep-dive blog is coming soon, so stay tuned.

In this blog post, we will demonstrate how the dashboard helps network operators:

  1. Understand their network better
  2. Respond to DDoS attacks faster
  3. Easily generate security reports for peers and managers

Understand your network better

One of the main responsibilities network operators bare is ensuring the operational stability Continue reading