Virtual Routing#

VPC <=> VRF

A Virtual Private Cloud (VPC) is a secure, isolated private cloud hosted within a public cloud environment. Essentially, it allows users to create their own private network within the cloud, offering a high degree of control over network configurations, including IP address ranges, subnets, access control policies, and routing. VPCs are a fundamental component of cloud computing that enable organizations to run and manage applications in a secure and isolated environment while benefiting from the scalability, reliability, and efficiency of the public cloud.

Key features of a Cloud VPC include:

• Isolation: A VPC provides an isolated section of the cloud where you can launch resources in a virtual network that you define. This isolation ensures that your resources are securely separated from those of other users, enhancing security.
• Customizable Network Configuration: You have complete control over your virtual networking environment, including the selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways.
• Secure Connection: You can connect your VPC to your on-premises network using VPN (Virtual Private Network) connections, making it an extension of your corporate data center in a secure and seamless manner.
• Access Control: With VPCs, you can use security groups and network access control lists (ACLs) to control access to instances in each subnet, providing a layered security model.
• Scalability: VPCs leverage the underlying scalability of the cloud, allowing you to easily scale your infrastructure up or down as your requirements change.
• Integration with Cloud Services: VPCs are designed to work seamlessly with other services offered by the cloud provider, such as cloud databases, storage, and DNS services. This integration allows for a more efficient and powerful cloud architecture

Peering#

Peering is like creating a private shortcut between two networks, allowing them to share data directly and securely, bypassing the wider internet.

SR-IOV#

SR-IOV stands for Single Root Input/Output Virtualization. Imagine it as a way to split a single physical network card into several smaller, virtual cards. Each of these “mini-cards” can be given directly to a virtual machine (VM), allowing the VM to talk to the network as if it had its own physical network card. This makes things faster and more efficient, especially for sending and receiving data over the network. It’s like having a single pizza split into individual slices so everyone gets their piece without waiting for the whole pizza to be passed around.