Administrator Guide

• before configuring controller-based VXLAN with VLT, remove any existing standalone VXLAN configuration.
• BFD tunnels come up only after the NSX controller sends tunnel details. The details come after the remote MAC addresses are
downloaded from NSX controller.
Configure NSX Controller-based VxLAN in VLT Setup
You can configure NSX controller-based VxLAN in a VLT setup. To configure NSX controller-based VxLAN in a VLT setup, perform the
following tasks:
1. (Optional) Configure BFD and UFD. For more details on how to configure BFD and UFD for NSX controller-based VxLAN in VLT a
setup, Configuring BFD and UFD section.
2. Configure VxLAN on VLT peer devices. For more details on how to configure VxLAN for VLT, see the Configuring NSX-based VxLAN
on VLT Peer Devices section.
3. Configure VLT on VLT peer devices for VxLAN. For more details on how to configure VLT for VxLAN, see the Configuring VLT for
NSX-based VxLAN section.
4. Configure the NSX controller. For more details on configuring the NSX controller, see the Configuring and Controlling VXLAN from the
NSX Controller GUI section.
Configuring BFD and UFD for VXLAN
For controller-based VXLAN, you can optionally configure BFD and UFD for more resiliency. To configure BFD and UFD, follow these
steps:
1. Enable BFD globally.
CONFIGURATION mode
bfd enable
Enter the result of your step here (optional).
2. Create an uplink-state group.
CONFIGURATION mode
uplink-state-group group-id
group-id: values are from 1 to 16.
3. Assign a VLT port channel to the uplink-state group as an upstream link.
UPLINK-STATE-GROUP mode
upstream interface
4. Assign a network port or port channel to the uplink-state group as a downstream link.
UPLINK-STATE-GROUP mode
{upstream | downstream} interface
Configuring NSX-based VxLAN on VLT Peer Devices
To connect to an NVP controller in a VLT setup, use the following commands.
1. Enable the VxLAN feature.
CONFIGURATION mode
feature vxlan
2. Create a VxLAN instance that connects to the controller.
CONFIGURATION mode
vxlan-instance instance ID nsx
NSX is the default value.
3. Define how the device connects to the controller.
VxLAN INSTANCE mode
controller controller-ID ip address port port-number TCP | SSL
The port number range is from 1 to 6632. The default connection type is SSL.
4. Enter the VxLAN gateway IP adress.
VxLAN INSTANCE mode
Virtual Extensible LAN (VXLAN)
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