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Renumbering Public Cloud Address Space

Got this question from one of the networking engineers “blessed” with rampant clueless-rush-to-the-cloud.

I plan to peer multiple VNet from different regions. The problem is that there is not any consistent deployment in regards to the private IP subnets used on each VNet to the point I found several of them using public IP blocks as private IP ranges. As far as I recall, in Azure we can’t re-ip the VNets as the resource will be deleted so I don’t see any other option than use NAT from offending VNet subnets to use my internal RFC1918 IPv4 range. Do you have a better idea?

The way I understand Azure, while you COULD have any address range configured as VNet CIDR block, you MUST have non-overlapping address ranges for VNet peering.

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Day Two Cloud 073: AnsibleFest & HashiConf 2020 Announcements, Analysis & Awesomeness

Ned Bellavance and Ethan Banks analyze the big announcements from two conferences the clouderati should care about: AnsibleFest and HashiConf Digital. Both of these were virtual events because there's still an pandemic on, folks. Speaking of which, how do Ned and Ethan feel about virtual events? Not great, really. Slidewhipping the attendees in multi-day webinars seems to be how vendors are running their virtual conferences, and it ain't workin'...

The post Day Two Cloud 073: AnsibleFest & HashiConf 2020 Announcements, Analysis & Awesomeness appeared first on Packet Pushers.

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Day Two Cloud 073: AnsibleFest & HashiConf 2020 Announcements, Analysis & Awesomeness

Ned Bellavance and Ethan Banks analyze the big announcements from two conferences the clouderati should care about: AnsibleFest and HashiConf Digital. Both of these were virtual events because there's still an pandemic on, folks. Speaking of which, how do Ned and Ethan feel about virtual events? Not great, really. Slidewhipping the attendees in multi-day webinars seems to be how vendors are running their virtual conferences, and it ain't workin'...

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Message from Internet Society Audit Committee Chair

As Chair of the Internet Society Audit Committee, I wanted to share an update with you.

As you may know, the Audit Committee reviews the Conflict of Interest forms filed by members of the Board of Trustees and officers of the Internet Society to ensure that we are in compliance with our Conflict of Interest (“CoI”) policy.

The CoI policy states that members of the Board of Trustees cannot hold a position in the policy development process in another organization operating in the Internet Society’s areas of engagement, and we are evaluating a situation where this restriction may be relevant. One of our Trustees has been appointed as a non-voting member to the GSNO Council, the Generic Names Supporting Organization – a policy-development body that develops and recommends policies relating to generic top-level domains (gTLDs) to the ICANN Board.

The Internet Society has a long history of collaborating with our diverse community from around the world, and is committed to having vibrant and robust global engagement. We work across countries and cultures and seek diverse cross-organizational expertise. This makes us stronger—sound practices and clear policies are a critical part of that.

We recognize that the expertise of our trustees is Continue reading

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My Latest Podcast : Heavy Strategy

I've teamed up with Keith Townsend to talk IT Strategy.

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Do We Need LFA or FRR for Fast Failover in ECMP Designs?

One of my readers sent me a question along these lines:

Imagine you have a router with four equal-cost paths to prefix X, two toward upstream-1 and two toward upstream-2. Now let’s suppose that one of those links goes down and you want to have link protection. Do I really need Loop-Free Alternate (LFA) or MPLS Fast Reroute (FRR) to get fast (= immediate) failover or could I rely on multiple equal-cost paths to get the job done? I’m getting different answers from different vendors…

Please note that we’re talking about a very specific question of whether in scenarios with equal-cost layer-3 paths the hardware forwarding data structures get adjusted automatically on link failure (without CPU reprogramming them), and whether LFA needs to be configured to make the adjustment happen.

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Do We Need LFA or FRR for Fast Failover in ECMP Designs?

One of my readers sent me a question along these lines:

Imagine you have a router with four equal-cost paths to prefix X, two toward upstream-1 and two toward upstream-2. Now let’s suppose that one of those links goes down and you want to have link protection. Do I really need Loop-Free Alternate (LFA) or MPLS Fast Reroute (FRR) to get fast (= immediate) failover or could I rely on multiple equal-cost paths to get the job done? I’m getting different answers from different vendors…

Please note that we’re talking about a very specific question of whether in scenarios with equal-cost layer-3 paths the hardware forwarding data structures get adjusted automatically on link failure (without CPU reprogramming them), and whether LFA needs to be configured to make the adjustment happen.

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60 GHz Wireless: A Modern Alternative to Copper and Fiber Backbones

While the days of physical cabling in the enterprise may not be completely behind us, advancements in wireless technologies are showing that the writing is on the wall.

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Anatomy of a Binary Executable

Even though I’ve developed software for a number of years now, there’s one question that has always been in the back of my mind and I haven’t had the time or patience to really answer, until now: What is a binary executable anyways? For this example, I wrote a brutally simple Rust program that includes a function “sum” to add two integers together, and am invoking it from main(): fn main() { println!

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Heavy Strategy 003 – The Impact of DPUs, SmartNICs on IT Infrastructure Decision Making

Are DPU's something that you want ? What use cases can be addressed ? What makes them more than a SmartNIC ? How do you consume DPU's in your infrastructure ? 

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What are data centers, and gow they are changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

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What are data centers, and how they are changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

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What are data centers, and how are they changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

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What are data centers, and how they are changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

0

What are data centers, and gow they are changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

0

What are data centers, and how are they changing?

A data center is a physical facility that enterprises use to house their business-critical applications and information. As they evolve, it’s important to think long-term about how to maintain their reliability and security.What is a data center? Data centers are often referred to as a singular thing, but in actuality they are composed of a number of technical elements. These can be broken down into three categories: Compute: The memory and processing power to run the applications, generally provided by high-end servers Storage: Important enterprise data is generally housed in a data center, on media ranging from tape to solid-state drives, with multiple backups Networking: Interconnections between data center components and to the outside world, including routers, switches, application-delivery controllers, and more These are the components that IT needs to store and manage the most critical systems that are vital to the continuous operations of a company. Because of this, the reliability, efficiency, security and constant evolution of data centers are typically a top priority. Both software and hardware security measures are a must.To read this article in full, please click here

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Home Network 2020

Recently I moved to a new house and as a lot of reconstruction was done to bring the house up to date. I took the opportunity to have something I’ve always wanted in my home: a server rack! In my previous lab set-ups they were either located in my employers lab location or placed in […]

The post Home Network 2020 first appeared on Rick Mur.

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Heavy Networking 548: Automating Multi-DC EVPN With Apstra (Sponsored)

If you’ve been looking at automation for your network, you should listen to this episode. This is one of those discussions that can help you understand whether you should roll your own artisanal automation, lovingly handcrafted with Python scripts flowing from your keyboard, or whether your organization would be better served with a commercially supported tool like Apstra. That’s the choice Beelastic needed to make, and we’re going to discuss why they went the Apstra direction. Apstra customer Beelastic is going to tell their tale of data center fabric, multiple data centers, automation, validation, multi-tenancy, EVPN, and more.

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Heavy Networking 548: Automating Multi-DC EVPN With Apstra (Sponsored)

If you’ve been looking at automation for your network, you should listen to this episode. This is one of those discussions that can help you understand whether you should roll your own artisanal automation, lovingly handcrafted with Python scripts flowing from your keyboard, or whether your organization would be better served with a commercially supported tool like Apstra. That’s the choice Beelastic needed to make, and we’re going to discuss why they went the Apstra direction. Apstra customer Beelastic is going to tell their tale of data center fabric, multiple data centers, automation, validation, multi-tenancy, EVPN, and more.

The post Heavy Networking 548: Automating Multi-DC EVPN With Apstra (Sponsored) appeared first on Packet Pushers.

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The Value of Certifications – Yasmin Lara, 4x JNCIE

In this episode Rick and Melchior explore with 4x JNCIE and Juniper Network Ambassador Yasmin Lara (Senior Network Consultant @ Cypress Consulting) what the value of certifications is. Do you still need them and are they still relevant for your career?
Yasmin has her own website https://momcanfixanything.com/