Skip to main content

About NSX VTEP Reports


NSX VTEP Reports



NSX Controller VXLAN directory services. There are basically 3 types of tables under VTEP




1) MAC Table



2) ARP Table



3) VTEP Table






MAC Table: 


  • The MAC table includes the VNI, the MAC address and VTEP ID that reported it.
  • If a unknown unicast frame is reviewed by a VTEP. The VTEP sends a MAC table request to NSX Controller for a destination MAC address.





  • If NSX controller has the MAC address in the MAC table, it replies to the VTEP with information on where to forward the frame.





  • If NSX controller does not have MAC address in the MAC table then the VTEP floods the frame to other VTEP's.









ARP Table:
  • The ARP table used to suppress the broadcast traffic.





  • IP report generate the ARP Table. The VTEP's send a copy to each MAC address and IP mapping that they have. This report is called the IP reports.





  • NSX controller creates a ARP table with the information in the IP request.





  • The ARP table includes the MAC to IP addrEss mapping and VTEP IP that reported it.





  • The VTEP intercepts all APR request from VM.





  • If the VTEP does not have the MAC address in its local ARP table, then VTEP queries the NSX controller instance from the information.





  • If the NSX controller instance does not have MAC address in the ARP, then ESXi host (VTEP) broadcast the frame to all virtual machine in the same VNI that are running in the VTEP and to all other VTEP in same VNI.









VTEP Table:






  • The function of VTEP table is to track all its VTEP's IP's, and VTEP MAC address via VNI.
  • The ESXi host updates its local VTEP and its send report to NSX Controller with this information.





  • NSX controller then pushes out the VTEP table to all hosts for the related VNI via the UWA.


















Labels:

Comments

Post a Comment

Popular posts from this blog

Changing the FQDN of the vCenter appliance (VCSA)

This article states how to change the system name or the FQDN of the vCenter appliance 6.x You may not find any way to change the FQDN from the vCenter GUI either from VAMI page of from webclient as the option to change the hostname always be greyed out. Now the option left is from the command line of VCSA appliance. Below steps will make it possible to change the FQDN of the VCSA from the command line. Access the VCSA from console or from Putty session. Login with root permission Use above command in the command prompt of VCSA : /opt/vmware/share/vami/vami_config_net Opt for option 3 (Hostname) Change the hostname to new name Reboot the VCSA appliance.   After reboot you will be successfully manage to change the FQDN of the VCSA . Note: Above step is unsupported by VMware and may impact your SSL certificate and face problem while logging to vSphere Web Client. If you are using self-signed certificate, you can regenerate the certificate with...
2 comments
Read more

High-Speed Networking for VMs: VMXNET3 Now Supports Up to 65 Gbps

The VMXNET3 adapter is VMware's high-performance virtual network adapter, designed for optimized performance in vSphere environments. It is the default and recommended adapter for most modern workloads on ESXi , delivering high throughput, low latency, and support for advanced networking features. With the release of vSphere ESXi 8.0 Update 2 , VMXNET3 introduces new capabilities that significantly enhance virtual network performance. What’s New in ESXi 8.0 Update 2 for VMXNET3? Traditionally, VMXNET3 reports a default link speed of 10 Gbps to the guest operating system. However, the actual achievable throughput often exceeds this value—thanks to technologies such as multi-queue support , Receive Side Scaling (RSS) , and Large Packet Offload . Starting with ESXi 8.0 Update 2 , this limitation can now be overridden , and VMXNET3 can be configured to support custom link speeds of up to 65 Gbps . This enhancement enables improved flexibility and throughput for high-performance w...
Post a Comment
Read more

What's New in VMware Cloud Foundation (VCF) 9.0

   What's New in VMware Cloud Foundation (VCF) 9.0 VMware Cloud Foundation 9.0 is a major release that redefines private cloud platforms with a focus on unified management, operational efficiency, advanced security, and robust support for modern and AI workloads. Below is a comprehensive summary of the most significant new features and innovations. Unified Operations and User Experience ·          Single Unified Interface: VCF 9.0 introduces a consolidated interface for cloud administrators, providing a holistic view of private cloud operations. This streamlines daily management and reduces complexity, making on-premises environments feel more like public cloud in terms of usability . ·          Quick Start App: A new application that dramatically reduces setup time and complexity for deploying and configuring private cloud environments . ·        ...
Post a Comment
Read more