VMware Networking Community
vSohill
Expert
Expert

New To NSX

Hi Communities,

I am a new user for that fantastic product. I am two VMs with tow different VLAN and Sup net, those VMs är located on tow different host. The question is I need those Two VMS to talk with each other.  Do I need to use Edge service OR ONLY DLR can handle the traffic between those VMs?

Thank you

vSohill

0 Kudos
4 Replies
RvdNieuwendijk
Leadership
Leadership

I  moved your question from VMware vSphere™ PowerCLIVMware vSphere™ PowerCLI to VMware NSXVMware NSX.

Blog: https://rvdnieuwendijk.com/ | Twitter: @rvdnieuwendijk | Author of: https://www.packtpub.com/virtualization-and-cloud/learning-powercli-second-edition
0 Kudos
RvdNieuwendijk
Leadership
Leadership

I would prefer to use Distributed Logical Router (DLR) because with DLR each ESXi host can route between L3 subnets and the traffic doesn't have to go to an external router.

Blog: https://rvdnieuwendijk.com/ | Twitter: @rvdnieuwendijk | Author of: https://www.packtpub.com/virtualization-and-cloud/learning-powercli-second-edition
0 Kudos
Richard__R
Enthusiast
Enthusiast

Are your machines on VXLANs or VLANS? If the former then the DLR is optimised for east/west routing of traffic like this. If the latter then there are some design considerations around using VLAN LIFs on a DLR and I think that it's generally not recommended these days. The ESG can do both but obviously you're hairpinning the appliance whereas the DLR can do in-kernel routing, preferably for the VXLAN scenario.

0 Kudos
Coldpawz
Contributor
Contributor

A simple way of looking at it is a standard NSX Edge Appliance deals with north/south traffic, whereas a DLR instance deals with east/west traffic.

Given your scenario, I'd suggest creating logical switches for each VM/network, hooking the VMs up to that switch, and then connecting the LS's to the DLR.

0 Kudos