Networking Principles for Highly Reliable IP Networks
Networking principles for highly reliable IP networks include hierarchical networking, redundancy, and load balancing.
The details are as follows:
Hierarchical networking: A network is divided into three layers: core layer, convergence layer, and edge layer. According to service status or prediction, redundancy backup is configured so that a customer edge device is dual-homed to the devices at the convergence layer. The devices at the convergence layer are dual-homed to multiple devices in a single node or different nodes at the upper layer. The devices at the core and convergence layers can be deployed as required. The devices at the core layer are fully or half interconnected. Two devices are reachable to each other using one route at a fast traffic rate, avoiding multi-interconnection.
Multi-interconnection is preferred at the same layer, whereas multi-device is preferred in a single node.
A lower-layer device is dual- or multi-homed to multiple devices in a single node or different nodes.
Adjustments can be made based on the actual traffic volume.
