CategoryNetworking

IP Address Management with vRealize Network Insight

vRealize Network Insight knows all and see all that’s happening within a network. Due to the search engine and the ability to pull out any data on the infrastructure, new use cases pop up now and then. Lately, I’ve been approached by a few organizations that are using Network Insight as an IP Address Management (IPAM) system, or to complete their existing IPAM system and compare and contrast it to the live infrastructure.

Here are a few examples: checking whether which IP addresses are free in a particular IP range. Comparing the IPAM registrations to the IP addresses that are Read more

Roneo: A NetFlow Duplicator

Introducing a new project that I’ve been working on: Roneo the NetFlow Duplicator.

It is essentially a very simplistic and fast UDP traffic forwarder written in Python, that’s designed to forward NetFlow/sFlow traffic. You might know that I work with vRealize Network Insight a lot, which ingests NetFlow data. There are some limitations with NetFlow devices (vSphere Distributed Switch can only send to 1 collector, and there are some other devices that have the same limitation), making a duplicator necessary when the flows need to go to multiple systems.

Why something new?

I’ve written about sending NetFlow to multiple collectors … Read more

VMware NSX-V Control and Management Plane Connections Diagram

This is a quick post about an awesome depiction of the control and management plane connection channels without VMware NSX for vSphere. A colleague of mine, Omkar Singh, put this together and it gives a very good look at what communication is required between the different NSX-v components.

It’s also available as a PDF.

Read more

Using PowerNSX to get all routes on NSX Edges

This is going to be a short one! I received an interesting question from Sander Martijn about retrieving all IP routes from an NSX Edge. There is no API endpoint available in NSX to get the current routes and the only way this information can get retrieved is using the NSX Central CLI. You can easily see all routes on the Central CLI by using the command: show edge edge-id ip route.

PowerNSX has an Invoke-NsxCli cmdlet which executes the Central CLI with a specific query. Because of this, you can retrieve the routes with a PowerShell script and … Read more

Learning NSX SD-WAN by VeloCloud – Orchestrator Configuration Basics

This post is a part of my NSX SD-WAN by VeloCloud series to dive deeper into the acquisition of VeloCloud by VMware, late last year. In an earlier post, I explained the concepts behind the architecture of NSX SD-WAN and with this post, I will dive into the VeloCloud Orchestrator (VCO) to see what you need to configure to generate an SD-WAN network. Please note that the Orchestrator can be used to monitor and troubleshoot the SD-WAN as well, I will cover those topics in a future post.

NSX SD-WAN Architecture - Orchestrator

VeloCloud Orchestrator (VCO) – What is it?

The VCO is the management … Read more

NSX-v 6.4.1 Released – Extended HTML5, vSphere 6.7 support & more

NSX for vSphere 6.4.1 has been released and it brings a couple of good nuggets. Most of all, it is now compatible with vSphere 6.7 – so if you want to go to vSphere 6.7 and NSX was holding you back, start your upgrade engines!

HTML5 UI Extended

It fills me with joy to see this happening – 6.4.1 brings a bunch of new functionality to the HTML5 UI instead of the old vSphere-Client UI. The additions are:

  • Distributed Firewall Management
  • The Service Composer: Security Groups, Policies and Tags.
  • SpoofGuard Management
  • IPFIX Configuration & Flow Monitoring
  • Groups & Tags: all
Read more

Learning NSX SD-WAN by VeloCloud – The Basics

This post is a part of my NSX SD-WAN by VeloCloud series to dive deeper into the acquisition of VeloCloud by VMware, late last year. I’ve had the privilege to play around with the virtual appliance for a couple of months with a physical appliance on the way. Expect more details in this series. 🙂

The upcoming chapters are building up the components that are in the VeloCloud portfolio and the components that you need to know.

Edge Appliances

An Edge Appliance is a physical or virtual appliance which is in the data path of your network traffic. It typically … Read more

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