Oracle Cloud Infrastructure Network Diagram

Creating a network diagram for Oracle Cloud Infrastructure (OCI) involves mapping out various components that interact with each other. The main components generally include:

1. Virtual Cloud Network (VCN): The VCN is your own private network within OCI. It provides isolation and segmentation for your cloud resources.
2. Subnets: Within a VCN, you can have one or more subnets. Subnets can be either public or private.
3. Internet Gateway: Allows resources in a VCN to access the internet. Only necessary for public subnets.
4. NAT Gateway: Allows resources in a private subnet to access the internet without exposing them to the internet.
5. Service Gateway: Provides a path for private network traffic between your VCN and supported Oracle services like Object Storage.
6. Dynamic Routing Gateway (DRG): Connects the VCN to your on-premises network via VPN or other connectivity options.
7. Local Peering Gateway (LPG): Allows peering between VCNs within the same Oracle Cloud region.
8. Remote Peering Gateway (RPG): Allows peering between VCNs in different Oracle Cloud regions.
9. Route Tables: Defines rules for routing traffic originating from all or a subset of resources in a VCN.
10. Security Lists: Sets of inbound and outbound rules that apply to instances in a given subnet.
11. Network Load Balancer (NLB) or Load Balancer (LB): Distributes incoming traffic across multiple targets, such as virtual machines (VMs).

Here’s a textual representation of what such a diagram might look like:

luaCopy code

                     +—————+

                     | Internet |

                     +——-+——-+

                             |

                             |

                     +——-v——-+

                     | Internet GW |

                     +——-+——-+

                             |

                             |

                     +——-v——-+

                     | VCN |

                     +——-+——-+

                             |

             +—————+—————–+

             | | |

    +——–v——-+ +—-v—–+ +—–v—–+

    | Public Subnet | |Private | | Private |

    | | | Subnet | | Subnet |

    +——–+——-+ +—-+—–+ +—–+—–+

             | | |

    +——–v——-+ +—-v—–+ +—–v—–+

    | Instance | | NAT GW | | Service |

    +—————-+ +———-+ | Gateway |

                                         +———–+