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Rob Carr is a Senior Trainer/Professional Services Consultant with Red Education Pty in Australia, covering the Oceania and Asia markets. He has done training and engagements from New Zealand to Taiwan and points in between. About 60% of his time is running F5 courses, ranging from the from the introductory Admin course through the high-level courses like AFM, ASM or iRules. He enjoys the mix of work, where teaching allows him to be social and PS work lets him delve into the technical nitty-gritty. Rob is also DevCentral’s Featured Member for September! DevCentral: You were an F5er (ProServ Consultant) from 2013-15 and continue to be a very active contributor in the DevCentral community since then. What keeps you involved? Rob: Long before I did PS Consulting for F5, I worked for F5 in Seattle, first as a Network Support Engineer and then as Software Test Engineer, ... (more)

Automatically Update your BIG-IP Pool Using the Service Discovery iApp

Let’s look at how to automatically add members to your BIG-IP pool by using the Service Discovery iApp. Whenever you deploy a BIG-IP Virtual Edition by using one of the templates on the F5 Github site, this iApp is installed on the BIG-IP. The idea behind this iApp is you assign a tag to a virtual machine in the cloud and then BIG-IP automatically discovers it and adds it to the pool. By tagging instances in AWS and Azure, and configuring the iApp, the pool is updated based on an interval you specify. This is especially helpful if you auto-scale your application servers because they are then automatically added and removed. Today, we’ll look how to do this in Azure but you can also do this in AWS. First, we’re going to add a tag to the application sever in Azure. You can assign the tag to either the virtual machine or to the NIC. For auto-scaling you’d tag the sca... (more)

What Is #MQTT? | @ThingsExpo #IoT #M2M #RTC #DigitalTransformation

The mad dash to connect virtually every noun to the internet or the Internet of Things is creating a massive M2M network for all the devices, systems, sensors and actuators to connect & communicate on the Internet. With that, they need a communications protocol to understand each other. One of those is Message Queue Telemetry Transport (MQTT). MQTT is a “subscribe and publish” messaging protocol designed for lightweight machine-to-machine (or IoT) communications. In this episode of Lightboard Lessons, I light up how MQTT works. ps Related: IoT Ready Infrastructure IoT Effect on Applications IoT Influence on Society What are These "Things? The Intruders of Things Internet of @ThingsExpo, taking place June 6-8, 2017 at Javits Center, New York City, is co-located with 20th International @CloudExpo and will feature technical sessions from a rock star conference facult... (more)

Lightboard Lessons: What is HTTP?

In this Lightboard Lesson, I light up some #basics about HTTP. HTTP defines the structure of messages between web components such as browser or command line clients, servers like Apache or Nginx, and proxies like the BIG-IP. ps Related: What is HTTP? What is HTTP Part II – Underlying Protocols ... (more)

Lightboard Lessons: What is BIG-IP?

In the early days of F5, BIG/IP was our original load balancer. Today, BIG-IP is a family of products covering software and hardware designed around application availability, access control, and security solutions. In this Lightboard Lesson, I light up the various BIG-IP modules and what they do. ps Related: What Is BIG-IP? Lightboard Lessons: BIG-IP Basic Nomenclature Lightboard Lessons: What is a Proxy? Lightboard Lessons: BIG-IP Life of a Packet Lightboard Lessons: Service Consolidation on BIG-IP Lightboard Lessons: The BIG-IP Profiles ... (more)

F5 and Versafe: Because Mobility Matters

Mobility is a significant driver of technology today. Whether it's mobility of applications between data center and cloud, web and mobile device platform or users from corporate to home to publicly available networks, mobility is a significant factor impacting all aspects of application delivery but in particular, security. Server virtualization, BYOD, SaaS, and remote work all create new security problems for data center managers. No longer can IT build a security wall around its data center; security must be provided throughout the data and application delivery process. This means that the network must play a key role in securing data center operations as it “touches” and “sees” all traffic coming in and out of the data center. -- Lee Doyle, GigaOM "Survey: SDN benefits unclear to enterprise network managers" 8/29/2013 It's a given that corporate data and access ... (more)

High Availability Groups on BIG-IP

High Availability of applications is critical to an organization’s survival. On BIG-IP, HA Groups is a feature that allows BIG-IP to fail over automatically based not on the health of the BIG-IP system itself but rather on the health of external resources within a traffic group. These external resources include the health and availability of pool members, trunk links, VIPRION cluster members or a combination of all three. This is the only cause of failover that is triggered based on resources outside of the BIG-IP. An HA group is a configuration object you create and assign to a traffic group for devices in a device group. An HA group defines health criteria for a resource (such as an application server pool) that the traffic group uses. With an HA group, the BIG-IP system can decide whether to keep a traffic group active on its current device or fail over the traff... (more)

Deploy BIG-IP VE in Microsoft Azure Using an ARM Template

Azure Resource Manager (ARM) templates allow you to repeatedly deploy applications with confidence. The resources are deployed in a consistent state and you can easily manage and visualize resources for your application. ARM templates take the guesswork out of creating repeatable applications and environments. Deploy and deploy again, consistently. Let’s walk through how to deploy a simple, single-NIC configuration of BIG-IP VE in Microsoft Azure using an ARM template. First, go to the F5 Networks Github site where we keep our supported templates. There are other community-based templates at www.github.com/f5devcentral if needed but for F5 supported templates, go to the F5 Networks site.   To view Azure templates, click f5-azure-arm-templates. In that folder you’ll see experimental and right under that is supported (the one you want). Then click on the standalon... (more)

Bare Metal Blog: Testing for Numbers or Performance?

Along the lines of the first blog in the testing portion of the Bare Metal Blog series, I’d like to talk a bit more about how the testing environment, the device configuration, and the payloads translate into test results. One of the problems most advanced mass education systems run into is the question of standardized testing. While it is true that you cannot fix what you have not determined is broken, like most things involving people, testing students for specific areas of knowledge does kind of guarantee that those doing the teaching will err on the side of preparing students to take the test rather than to succeed in life. The mere fact that there IS a test changes what is taught. It is of course possible to a make this into a massively positive proposition by targeting the standardized tests at the most important things students need to  learn, but for our disc... (more)

Tweaking Timeouts

I have a weakness for a particular Android game that shall remain nameless (to protect the innocent, of course). It frequently complains that I have "a poor network connection." Even when I'm one hop from a fiber ring. Interestingly enough, it is almost always the case that this notification (and poor responsiveness on the part of the game) occurs during an "episode" in which hundreds of thousands of users are all active. At the same time. Yes, I found that telling, too. Needless to say, I am almost certain I do not have "poor network" performance and really, unless they're performing some network latency tests on round trip time under the covers (which I seriously doubt) or doing some mathematically deduction based on TCP window sizes, there's no way an Android game developer is going to be able to tell me I have "poor network" performance. I will grant that it cou... (more)

Blog Roll 2015 By @PSilvas | @ThingsExpo #IoT #Cloud

It’s that time of year when we gift and re-gift, just like this text from last year. And the perfect opportunity to re-post, re-purpose and re-use all my 2015 blog entries. If you missed any of the 89 attempts including 59 videos, here they are wrapped in one simple entry. I read somewhere that lists in blogs are good. I broke it out by month to see what was happening at the time and let’s be honest, pure self-promotion. Thanks for reading and watching throughout 2015. Have a Safe and Happy New Year. January 2015 OK 2015, Now What? The Analog Generation Application Availability Between Hybrid Data Centers Will Deflate-Gate Lead to Micro-Chipped Footballs? VMware Partner Exchange 2015: Video Preview February VMware PEX 2015 – Find F5 VMware PEX 2015 – What Customers Want From Security Vendors VMware PEX 2015 – BIG-IP on vCloud Air VMware PEX 2015 – F5 Channel Partne... (more)