使用IGP多进程（管理面用OSPF，控制面ISIS）隔离核心层和汇聚层

Use IGP multi-process (OSPF for the management plane, ISIS for the control plane) to isolate the core layer and the aggregation layer network. The access rings of the same aggregation ring and lower band are deployed in the same IGP process, and the access rings of different aggregation rings and lower bands are deployed in the same IGP process. Deploy different IGP processes. Considering the later network expansion and initial networking, it is recommended that the number of network elements in a single IGP domain should not exceed 300, and 1-2 aggregation rings are appropriate.

Isolate the core and aggregation layer networks using IDP multiprocesses (management surface with OSPF, control surface ISIS), the same convergence ring and the lower access ring are deployed in the same IDP process, and different aggregation rings and lower band access rings are deployed with different IDP processes. Considering the late network expansion, the initial network formation, a single ICP domain network element is recommended not more than 300, with 1-2 convergence rings appropriate.

IGP multi process (OSPF for management plane and Isis for control plane) is used to isolate the core layer and convergence layer network. The same convergence ring and lower access ring are deployed in the same IGP process. Different convergence rings and lower access rings deploy different IGP processes. Considering the later network expansion and the initial networking, it is recommended that the number of network elements in a single IGP domain should not exceed 300, and 1-2 convergence rings are appropriate.<BR>