Connectivity Requirements
CORD 分兩個網路：
- Management network: 是在 containers 之間的 control traffic 的 control plane。
- Dataplane network: end-user traffic
Management Network
The management network that connects all physical devices (compute machines, fabric switches, access devices, development machines), allowing them to communicate to manage CORD. This is usually a 1G copper network, but may vary deployment by deployment. Network devices (access devices and fabric switches) usually connect to this network through a dedicated management 1G port. If everything is setup correctly, any device should be able to communicate with the others at L3 (i.e., devices should ping one each other).
The management network is usually used to access Internet for the underlay infrastructure setup, although CORD doesn't require Internet access. For example, you will likely need to have Internet access through this network to install or update your OS, switch software, Kubernetes, and so on.
The following is a diagram of a typical management network.
Dataplane Network
The dataplane network carries the users' traffic, connecting subscribers to the Internet (which is the whole purpose of CORD). The following is a diagram of a reference dataplane network for CORD.
