44 – The Essentials of DCNM 11
Good day everyone,
I have recorded 6 different modules aimed at giving you a good understanding of the key functions that DCNM 11 offers to manage, automate and operate your data center network.
While waiting for the new version 12 coming soon, this series of modules covers the Essentials of Data Center Network Manager (DCNM
) version 11.
By “Essentials” the mean is that it covers the most features needed for all enterprises, from small legacy Data Center Network to multiple modern Fabrics or a mix of. This essential series of modules covering DCNM 11 emphases the Classic LAN as well as the VXLAN EVPN Fabric environments. Indeed, any network team can benefit from the advantages of leveraging the same and unique platform to operate a classic based data center network or a modern VXLAN EVPN based fabric or a mixture of the both.
I have developed the content for the lectures on DCNM 11 and 10.1(n) environment.
If you are not yet familiar with DCNM, you can read previous posts, otherwise, DCNM is the leading Intent-Based Networking solution for Standalone NX-OS based Data Center. It encompasses the comprehensive management solution for all NX-OS network deployments Continue reading
Lucky Webapp Add Font Awesome
In this post I will show you how to add the Font Awesome icons to your Lucky webapp. Software The following software versions were used in this post. Lucky - 0.28.0 Font Awesome (Free) - 5.15.4 Installation Firstly add the fontawesome-free package via yarn. Next, we import the Font...continue reading
IPv6 Buzz 083: The IPv6 Interface Identifier
In this IPv6 Buzz podcast episode we geek out about the IPv6 Interface Identifier (IID, i.e., the lower 64 bits of an IPv6 address reserved for interface identification). We discuss why IID is 64 bits, typical configurations, and innovative uses for it.
The post IPv6 Buzz 083: The IPv6 Interface Identifier appeared first on Packet Pushers.
IPv6 Buzz 083: The IPv6 Interface Identifier
In this IPv6 Buzz podcast episode we geek out about the IPv6 Interface Identifier (IID, i.e., the lower 64 bits of an IPv6 address reserved for interface identification). We discuss why IID is 64 bits, typical configurations, and innovative uses for it.Zero Trust at Black Hat 2021: Networking meets Security
Recorded live at Black Hat 2021 in Las Vegas! Our vaxxed and masked podcast co-hosts, Brandon and Derick, take the show on the road to talk to real network and security folks about Zero Trust. Is it more than just a marketing buzzword? Is it even achievable? Listen to this one-of-a-kind episode to get the straight scoop.
Pin, Unpin, and why Rust needs them
Using async Rust libraries is usually easy. It's just like using normal Rust code, with a little async or .await here and there. But writing your own async libraries can be hard. The first time I tried this, I got really confused by arcane, esoteric syntax like T: ?Unpin and Pin<&mut Self>. I had never seen these types before, and I didn't understand what they were doing. Now that I understand them, I've written the explainer I wish I could have read back then. In this post, we're gonna learn
- What Futures are
- What self-referential types are
- Why they were unsafe
- How Pin/Unpin made them safe
- Using Pin/Unpin to write tricky nested futures
What are Futures?
A few years ago, I needed to write some code which would take some async function, run it and collect some metrics about it, e.g. how long it took to resolve. I wanted to write a type TimedWrapper that would work like this:
// Some async function, e.g. polling a URL with [https://docs.rs/reqwest]
// Remember, Rust functions do nothing until you .await them, so this isn't
// actually making a HTTP request yet.
let async_fn = reqwest::get("http://adamchalmers.com");
// Wrap the Continue readingDay Two Cloud 112: Complex Multi-Cloud Networking
Today's Day Two Cloud podcast discusses the challenges of stitching together a fabric across more than one public cloud. How do you architect a fabric given the constraints of each cloud? We also drill into the idea of API gateways. Our guest is Chris Oliver, a network architect at NI.
The post Day Two Cloud 112: Complex Multi-Cloud Networking appeared first on Packet Pushers.
Day Two Cloud 112: Complex Multi-Cloud Networking
Today's Day Two Cloud podcast discusses the challenges of stitching together a fabric across more than one public cloud. How do you architect a fabric given the constraints of each cloud? We also drill into the idea of API gateways. Our guest is Chris Oliver, a network architect at NI.Enterprises Need to Invoke Plan B As 3G Sunset Looms
The major U.S. carriers all have 3G sunset plans next year. Businesses need to start 3G device replacements now to avoid telemetric data disruptions.Tech Bytes: DDOS and State Exhaustion With NETSCOUT – Updated
Its not widely that DDOS attacks also cause damage from state exhaustion in devices. A recent study why Netscout surprised me that many engineers are aware of overload bandwidth or routing devices but give less considerations to state exhaustion in application aware devices.
The post Tech Bytes: DDOS and State Exhaustion With NETSCOUT – Updated appeared first on Packet Pushers.
Tech Bytes: DDOS and State Exhaustion With NETSCOUT – Updated
Its not widely that DDOS attacks also cause damage from state exhaustion in devices. A recent study why Netscout surprised me that many engineers are aware of overload bandwidth or routing devices but give less considerations to state exhaustion in application aware devices.Lucky Webapp Inflections
This excellent post contains a workaround. Update the src/models/vrfs.cr file. Summary continue reading
How IT Pros Learn Online In 2021
I surveyed 53 IT professionals about online IT training in August 2021. Most of the folks I interact with are networking & cloud infrastructure professionals, and the answers reflect that. 53 responses isn’t enough to draw hard and fast conclusions from, but I still believe there are interesting trends & individual comments worth thinking about.
By the way, if you’d like to submit your own responses, I left the survey open. I told Google Forms to not collect email addresses, so your responses are anonymous.
1. Which online learning sites do you have a subscription to or have bought an IT course from?
- Udemy – 32
- Pluralsight – 24
- INE – 19
- A Cloud Guru – 16
- CBT Nuggets – 12
- Coursera – 9
- O’Reilly / Safari – 7
- ITProTV – 4
- LinkedIn Learning / Lynda – 3
- Juniper Learning Portal – 2
- Pearson – 2
- Skillshare – 2
- Adrian Cantrill – 1
- Cisco Learning Network – 1
- Global Knowledge – 1
- Ivan Pepelnjak – 1
- KBITS – 1
- Kirk Byers – 1
- Routehub – 1
- Skillsoft – 1
- TalkPython – 1
- Teachable – 1
- YouTube – 1
I believe Udemy is so popular because it’s a great platform to Continue reading
Building Consistent Security for Diverse LAN and Edge Networks
Security needs to be deployed consistently across every edge and tightly coupled with networking so that it can automatically adapt to changes.Hedge 97: Low Context DevOps
Language is deeply contextual—one of my favorite sayings from the theological world is if you take the text out of its context, you are just left with the con. What does context have to do with development and operations, though? Can there be low and high context situations in the daily life of building and running systems? Thomas Limoncelli joins Tom Ammon and Russ White to discuss the idea of low context devops, and the larger issue of context in managing projects and teams, on this episode of the Hedge.
Lucky Webapp Use UUIDs For Primary Keys
By default, new Lucky projects use the Int64 type for primary keys. In this post I will cover the process of changing the Lucky database primary keys type from an Int64 to a UUID. Software Used The following software versions are used in this post. Crystal - 1.1.1 Lucky -...continue reading