Learning vSphere 6.5-Part-2-VCSA Overview

Manish Jha

In first post of this series Installing and Configuring Esxi we looked into Installation of Esxi 6.5 and as I stated in that post installation method has not changed at all. In this post we will look into overview of VCSA and will discuss about VCSA components.

Staring with vSphere 6.0, vCenter Server Appliance (vCSA) offers same scalability as provided by windows based vCenter Server installation. Earlier there was a limitation with vCSA that it cannot support huge infrastructure where you have a lot of Esxi hosts and virtual machines running. Same holds true for v6.5 as well.

Earlier in v6.0 there was a limitation that if you are planning to use VUM in your infrastructure, you have to install it on a windows server.

Lot of customers had provided the feedback to VMware to include VUM with linux based VCSA and VMware listened to them and now in v6.5 VUM can be used alongside VCSA on same node.… Read More

Learning vSphere 6.5-Part-1-Installing and Configuring Esxi

Manish Jha

We all know that vSphere 6.5 was announced by VMware 2 weeks back in VMworld Barcelona. With the release of 6.5 version of vSphere, VMware has done some fantastic work with HA and DRS enhancements. Several folks wrote blogs on the new features and enhancements that are included in this new release.

If you have not read about the new features/enhancements in vSphere 6.5, you can read it from here. Brian has done fantastic job by summing up all that you want to know about vSphere 6.5.

After reading a bit about vSphere 6.5, I decided to deploy and test it in my lab.

Note: The GA and beta version has not been released yet by VMware.

Let’s begin with part 1 of this series where we will see installation/configuration of Esxi host.

vSphere is a sophisticated product with multiple components to install and setup. Typically installing vSphere includes the following tasks:

1

 

We are starting with deploying Esxi host.… Read More

Troubleshooting Edge Gateway High Availability

Manish Jha

Yesterday I was working on Edge Services Gateway in my Lab and deployed the edge gateway in HA mode. Soon after the deployment when I checked the HA status from vCenter, it reported status as Down

edge-ts-0

To counter any UI bug which might be reporting HA status as down (as this was a brand new deployment), I decided to check the HA status by logging onto edge vm’s directly.

On checking for the HA status on the VM, below message was displayed

Highavalibity healthcheck server is stopped

edge-ts1.PNG

edge-ts2

I did a search on google for this message and didn’t get much results. Then I checked the Admin guide for NSX and came to know the fact that you should have at least one vNIC configured as High availability traffic flows on one of the internal interface.

By design the edge High Availability Service will only kick in once the first Internal vNIC has been added and configured. … Read More

Learning NSX-Part-9-Edge Services Gateway

Manish Jha

In last 2 post of the series we discussed about Distributed Logical Router. Moving forward in NSX learning series, we will look into what is Edge Service Gateway and will discuss on when to use edge gateway. We will look into deploying ESG and configuring it and then finally some touch down points on monitoring Edge gateways.

If you have missed earlier posts of this series, you can read them from below links:

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

4: Preparing Esxi Hosts and Cluster

5: Configure VXLAN on the ESXi Hosts

6: Logical Switching

7: Distributed Logical Router Tidbits

8: Installing Distributed Logical Router

In VMware NSX for vSphere there are two different types of NSX routers which can be deployed in virtual network infrastructure.

  1. The NSX Edge Services Router (ESR)
  2. The NSX Distributed Logical Router (DLR)

Both the ESR and DLR can run dynamic routing protocols, or not.… Read More

Learning NSX-Part-8-Installing Distributed Logical Router

Manish Jha

In last post of this series we discussed about distributed logical router and went through some important terms and terminologies. In this post we will jump into lab and will deploy logical distributed router.

If you have missed earlier posts of this series, you can read them from below links:

 

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

4: Preparing Esxi Hosts and Cluster

5: Configure VXLAN on the ESXi Hosts

6: Logical Switching

7: Distributed Logical Router Tidbits

Before jumping into deploying distributed router, I want to stress on the fact that your logical switches be ready. What i mean here since you wanna test routing between 2 or more different subnets, you should have logical switches ready in place and should have some live VM’s attached to it.

In my lab I have 3 logical switches created for this purpose.

dlr-0

Lets jump into lab now.… Read More

Learning NSX-Part-7-Distributed Logical Router Tidbits

Manish Jha

In last post of this series we discussed about Logical Switching and understood when do we use logical switching. Also we deployed our first logical switch and moved a VM over to the newly created switch.

In this post we will discuss about Distributed Logical Router and look at the terms and terminology associated with it. We will not be diving into lab in this post as I intend to this in next post of this series

If you have missed earlier posts of this series, you can read them from below links:

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

4: Preparing Esxi Hosts and Cluster

5: Configure VXLAN on the ESXi Hosts

6: Logical Switching

Overview

Physical Routers are the building block of any network infrastructure. They are essential for building a working network topology. As we know Routers comes into picture when we need communication between 2 different subnets.… Read More

Delete Stale Org Networks and Edge Gateway from vCloud Director

Manish Jha

Today while working in production, I came across an issue where the edge VM’s backing the edge gateway were not present in vCenter (no idea how they got deleted).

Due to this I was not able to delete the Org network from vCD. Any attempt to delete the Org network was failing with error

… Read More

Learning NSX-Part-6-Logical Switching and Transport Zones

Manish Jha

In last post of this series we briefly looked what is VXLAN (In actual it’s an ocean of knowledge in itself) and also we configured VXLAN on our cluster/hosts.

In this post we will be talking about Logical switching and we will see how to create that and will cover prerequisites part as well.

If you have missed earlier posts of this series, you can read them from below links:

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

4: Preparing Esxi Hosts and Cluster

5: Configure VXLAN on the ESXi Hosts

Let’s start with introduction to Logical Switching.

What is Logical Switching?

Functionality of a Logical switch is very similar to that of a physical switch i.e they allow isolation of applications and tenants for security purpose. A logical switch when deployed, creates a broadcast domain to allow isolation of the VM’s running in infrastructure.… Read More

Learning NSX-Part-5-Configure VXLAN on the ESXi Hosts

Manish Jha

In last post of this series we saw how to prepare Esxi host and Cluster for NSX. In this post we will be talking little bit about VXLAN, what are its benefits and how to configure VXLAN on Esxi hosts.

If you have missed earlier posts of this series you can read them from here:

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

4: Preparing Esxi Hosts and Cluster

Lets start our discussion with what is VXLAN.

Virtual Extensible LAN (VXLAN) is an encapsulation protocol for running an overlay network on existing Layer 3 infrastructure. An overlay network is a virtual network that is built on top of existing network Layer 2 and Layer 3 technologies to support elastic compute architectures.

In VXLAN the original layer 2 frame is encapsulated in a User Datagram Protocol (UDP) packet and delivered over a transport network. This technology provides the ability to extend layer 2 networks across layer 3 boundaries and consume capacity across clusters.… Read More

Learning NSX-Part-4-Preparing Esxi Hosts and Cluster

Manish Jha

In previous posts of this series, we talked about NSX Manager and NSX Controllers Deployment and also validated NSX Control Cluster status.

If you have missed earlier posts of this series you can read them from here:

1: Introduction to VMware NSX

2: Installing and Configuring NSX Manager

3: Deploying NSX Controllers

In this post we are going to learn about how to prepare Clusters and Esxi Hosts for NSX.

At this point we have NSX manager and controllers ready and established connection between control and management plane. Next step is to prepare cluster and Esxi hosts.

NSX installs three vSphere Installation Bundles (VIB) that enable NSX functionality to the host. One VIB enables the layer 2 VXLAN functionality, 2nd VIB enables the distributed router, and the 3rd VIB enables the distributed firewall. After adding the VIBs to a distributed switch, that distributed switch is called VMware NSX Virtual Switch.

Login to vCenter Server using vSphere Web Client and Navigate to Networking & Security > Installation > Host Preparation.… Read More