How To Configure And Use Logical Switch Networks With VMware NSX?
Switching capability (unicast, multicast, broadcast) is emulated by an NSX virtual switch in a virtualized environment that is not connected to the underlying hardware. Similar to VLANs, Logical Switches allow you to connect virtual machines to the network.
A vCenter NSX deployment’s logical switches are isolated. You can establish universal logical switches in a cross-vCenter VMware NSX certification. The new switch is either a logical switch or a universal logical switch, depending on the sort of transport zone it has.
As part of the process of creating a logical switch, you have the ability to configure IP discovery and MAC learning. Within the same VXLAN segment, IP discovery helps reduce ARP traffic flooding between virtual machines. It is by default enabled to discover IP addresses.
A VLAN/MAC pair-learning table is created on each vNIC using MAC learning. The dvfilter data includes this table. Dvfilter saves and retrieves the table during a vMotion to a different location. A RARP is issued for each VLAN/MAC entry in the table by the switch. If your virtual NICs are trunking VLANs, you may want to activate MAC learning.
What Does Logical Switch Mean In NSX?
As part of the VMware NSX certification, the concept of a “logical switch” refers to a virtual network section represented on the distributed switch by an individual virtual network interface (VNI). A port group for each distributed switch can be used to connect a logical switch across many distributed switches.
Necessary Conditions To Create A Logical Switch
- Configuration of vSphere distributed switches is required.
- NSX Manager should be set up.
- Deploying controllers is required.
- Clusters of hosts must be established for NSX.
- VXLAN requires configuration.
- Configuring a segment ID pool is required.
- Transport zones must be established.
Determine which NSX Manager you should use to perform your modifications.
- The NSX Manager doesn’t need to be selected because there’s just one in a single vCenter NSX environment.
- Use the primary NSX Manager to handle universal objects.
- NSX Managers must manage objects that are local to the NSX Manager they are attached to.
- To make configuration changes in a cross-vCenter NSX system without Advanced Linked Mode enabled, you must use the vCenter connected to the NSX Manager.
- Configuration updates can be made from any linked NSX Manager in an NSX cross-vCenter scenario. Select the right NSX Manager from the drop-down list of NSX Managers available.
Setup Or Remove NSX Logical Switches
How To Setup A Logical Switch?
Step 1. Select Logical Switches in the vSphere Web Client and then click on Logical Switches in the left-hand pane.
Step 2. Make sure you click the green Plus sign to add an additional logical switch. To add a Transport Zone, enter a Name and a Description, and then click Change.
Step 3. Click OK after you’ve selected your Transport Zone.
Step 4. Once you’ve chosen your Replication Mode, click OK.
How To Remove A Logical Switch?
Step 1: By clicking on the switch and then clicking on the Red X to remove it.
Step 2: Click Yes to remove the logical switch.
- Navigate to Logical Switches in the Home > Networking & Security section.
- To construct a logical switch on an NSX Manager, go to the NSX Manager and click Add. You must pick the primary NSX Manager in order to construct a universal logical switch.
- A fresh logical switch icon (New Logical Switch) will appear if you select Add.
- Give the logical switch a name and a brief description, if desired.
Create a logical switch in the transport zone of your choice. A universal logical switch is established if you choose a universal transport zone.
The transport zone’s replication mode of the control plane has defaulted to the logical switch. Alternatively, you have the option to use one of the other modes. Unicast, hybrid, and multicast modes are all accessible.
The multicast address you use must not clash with any other multicast addresses issued on any NSX Manager in the cross-vCenter NSX environment if you build a universal logical switch and choose hybrid as the replication option.
- ARP suppression can be enabled by enabling IP discovery.
- Enabling MAC Learning is also an option.
We can now connect physical and virtual endpoints located in distinct logical Layer 2 networks using NSX logical routing. This is made possible by network virtualization’s ability to separate physical network infrastructure from logical networks. We hope that now you are aware of how to configure and use logical switch networks with VMware NSX.