NSX – Create/configure Universal Distributed Logical Routers

Logical router kernel modules in the host perform routing between VXLAN networks, and between virtual and physical networks. An NSX Edge appliance provides dynamic routing ability if needed. A universal logical router provides east-west routing between universal logical switches.

1. In the vSphere Web Client, navigate to Home > Networking & Security > NSX Edges. Select the Primary NSX Manager to add a universal logical router.

2. Click the Add icon.

3. Select Universal Logical (Distributed) Router. Enable local egress (more detail on this in my next post!). Type a name for the device. Optionally, you can enter a description and tenant. Select deploy an edge appliance. You have the option to enable High Availability:

4. Type and re-type a password for the logical router and set the logging level:

5. Enter the settings for the logical router virtual appliance that will be added to your vCenter inventory:

6. Configure interfaces. In the HA Interface Configuration you must connect the interface to a distributed port group. An IP address for each of the two NSX Edge appliances is chosen from the link local address space, No further configuration is necessary to configure the HA service.

In NSX 6.2, the HA interface of a logical router is automatically excluded from route redistribution.

In Configure interfaces of this NSX Edge the internal interfaces are for connections to switches that allow VM-to-VM (sometimes called East-West) communication. Internal interfaces are created as pseudo vNICs on the logical router virtual appliance. Uplink interfaces are for North-South communication. A logical router uplink interface might connect to an NSX edge services gateway, a third-party router VM for that, or a VLAN-backed dvPortgroup to make the logical router connect to a physical router directly. You must have at least one uplink interface for dynamic routing to work. Uplink interfaces are created as vNICs on the logical router virtual appliance

7. Set the default Gateway if required (I’ll be setting up Dynamic Routing so want the uDLR to learn routes) then click finish.


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