为了隔离故障、提高路由收敛速度、降低网络对设备的要求，IGP部署采用分

In order to isolate faults, improve routing convergence speed, and reduce network requirements for equipment, IGP deployment adopts a hierarchical deployment scheme based on processes. Take the backbone aggregation node as the multi-process demarcation point, and configure the IGP multi-process on the backbone aggregation node. The routes between the processes are completely isolated without importing each other, so that the network is divided into multiple route-isolated IGP networks. The management domain IGP plan is consistent with the control plane IGP plan.

In order to isolate failures, improve routing convergence speed, and reduce network requirements for devices, IGP deployment adopts a process-leveled deployment scheme. With the backbone aggregation node as the multi-process demarcation point, the IGP multi-process is configured on the backbone aggregation node, and the routes between the processes are completely isolated and not introduced into each other, so that the network is divided into multiple routes to isolate the IGP network. Management domain ICP planning and control surface ICP planning are consistent.

In order to isolate faults, improve the convergence speed of routing and reduce the requirements of the network for devices, IGP deployment adopts hierarchical deployment scheme. Taking the backbone sink node as the multi process domain point, the IGP multi process is configured on the backbone sink node. The routes between the processes are completely isolated without introducing each other, so that the network is divided into multiple IGP networks with route isolation. The IGP planning of management domain is consistent with that of control plane.<BR>