INFORMATION REPORTING METHOD, INFORMATION PROCESSING METHOD, AND DEVICE

This application provides an information processing method. A first communication apparatus is configured with a BGP EPE function, a BGP session is established between the first communication apparatus and a third communication apparatus, and no BGP session is established between the first communication apparatus and a second communication apparatus. In this case, the first communication apparatus may obtain, by using the third communication apparatus, a route advertised by the second communication apparatus. The route advertised by the second communication apparatus includes a prefix and a next hop, and the next hop is the second communication apparatus. After receiving the route, the first communication apparatus allocates a BGP peer SID, and stores a correspondence between the BGP peer SID and the next hop. When receiving a packet including the BGP peer SID, the first communication apparatus may forward the packet to the next hop based on the correspondence, so that even if no BGP session is established between the first communication apparatus and the second communication apparatus, the first communication apparatus can use the BGP EPE function to quickly forward the packet to the second communication apparatus.