How to do it...

The following steps will show you how to create logical switches:

  1. Navigate to Networking & Security | Logical Switches.
  2. In the center pane, click the green + sign to open the New Logical Switch dialog box:
  1. Enter the Name of the logical switch in the text box.
  2. Optionally, input the Description.
  3. Select the applicable Transport Zone.
  4. Select the applicable Replication mode.
The logical switch replication mode configuration is inherited from the selected transport zone. The replication mode can be changed or overridden per logical switch by editing the logical switch.
  1. Leave the Enable IP Discovery box checked. Ensure that the IP Discovery suppresses the address resolution protocol (ARP) through the ARP Proxy service within the individual logical switch. When this option is enabled, an ARP request from a VM will be sent by the ESXi host to the NSX controller cluster which holds the ARP table. If the NSX controller cluster has ARP information in its ARP table, the ARP request will be returned to the host and to the VM. The NSX controller cluster caches the IP to the MAC address mappings, which suppress the ARP broadcast.
ARP suppression is supported with the unicast and hybrid replication modes.
  1. Verify that the new logical switch appears with a status of Normal, on a correct transport zone, and using the correct control plane mode.
  2. Repeat these processes to create the remaining logical switches.
  3. Verify that all the required logical switches have been created with their status as Normal:

These logical switches are isolated from each other in the layer 2 network. To allow traffic between these logical switches, a router is required, which can be a NSX Edge or a NSX Distributed Logical Router. See Chapter 3, Configuring VMware NSX Logical Routing, for more information on how to work with routing in NSX.

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