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NSX-T Manager Clustering

Introduction

In NSX-T 2.4 the NSX-T Manager is a Converged Appliance where Policy, Management and Control Roles are available on each NSX-T Manager Node and creating a Cluster of three NSX-T Managers. The NSX-T Managers in the Cluster also share a Distributed Persistent Datastore where the Desired State is stored. This feature brings the benefit of availability of all management services across the cluster, improves the install and upgrade process and makes operations easier with less systems to monitor and maintain.


vSphere Host Migration to N-VDS

Introduction

This blog post describes the required steps in NSX-T 2.4 to migrate a vSphere Host Physical adapters and associated VMkernel interfaces from a vSphere Distributed Switch to the N-VDS.

Example use cases for migration to the N-VDS:

  • Micro-segmentation with NSX-T, which requires the N-VDS. For example current workloads are on a Compute vDS which require to be secured with NSX-T.
  • Servers with limited number of Physical NICs or customers having the requirement to limit the amount of physical connectivity towards Top of Racks switches to save costs on the network fabric.

In this blog post I will show how to migrate Phyiscal adapters vmnic0 and vmnic1, which are currently connected to a vDS, to a N-VDS. This migration example also shows how to migrate the associated VMkernel interfaces for vSphere Management and vMotion. Depending on your topology this step may not be required. This could be the case when you have for example different vDS for Management and Compute.


NSX BGP Filters

In NSX BGP filters work like access lists for route advertisements (prefixes). The NSX BGP filters are prefix lists which work very similarly to firewall access lists. A prefix list contains one or more ordered entries which are processed sequentially. For each prefix entry you can specify inbound or outbound filters to allow certain routes to be advertised to or from the Edge Services Gateway/Distributed Logical Router.
For example you to want to prevent a route for 10.0.0.0/24 from being advertised in BGP from the NSX Edge Services Gateway.


Testing MAC Learning in the NSX L2 Bridge

One of our customers is preparing to migrate Virtual Machines from VLAN to VXLAN with the NSX L2 Bridge and asked me how to test the L2 Bridge and get confirmation that it is actually configured correctly and operational. All commands in this blog post are from the NSX Troubleshooting Documentation.

We can test if a bridge is functional by issuing a command on the NSX Manager.


How to create a Docker Cluster with Swarm on VMware Photon

Introduction

In this post I would like to share how to create a Docker Cluster with Swarm on the new VMware Project Photon.

Project Photon is an open source Linux container host which is optimized for running on VMware vSphere. It has a very small footprint, is extensible and supports the most common container formats including Docker, Rocket and Garden. You can find more information about Photon at the VMware GitHub site.


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