To add multiple network interfaces (Multi-vNIC) to an instance, follow these steps.
- Shutdown the instance.
- On the instance's Profile page under Networking, click Add vNIC, and select the options for the vNIC you wish to add.
- If it is a CentOS instance, go here for additional instructions. If it is an Ubuntu instance, go here for additional instructions.
Note: Up to 64 vNICs (vNIC 0 - vNIC 63) can be added to a single instance.