The backbone aggregation equipment establishes IBGP with the core equipment, and transmits the information collected in the IS-IS domain to the core equipment, and the core equipment sends it to the controller in a unified manner.
The backbone convergence equipment and the core equipment set up IBGP, the IS-IS domain collected information transmitted to the core equipment, by the core equipment unified delivery controller.
The iBGP is established between the backbone convergence device and the core device, which transmits the information collected in the IS-IS domain to the core device, and the core device sends it to the controller.<BR>