For more information, please refer to the following links:
- https://meltdownattack.com/
- https://docs.microsoft.com/en-us/azure/virtual-network/ddos-protection-overview
- https://aws.amazon.com/shield/
- https://www.cisco.com/c/en/us/products/routers/cloud-services-router-1000v-series/index.html
- https://www.sdxcentral.com/nfv/definitions/whats-a-virtual-router-vrouter/