VPN ROUTING-BASED METHOD, SYSTEM, AND ROUTER FOR ESTABLISHING LSP

摘要

Provided in the present invention are a method, system, and base station for establishing a label-switched path (LSP). A first provider edge router (PE) receives a notification message from a first evolved node base station (eNodeB). The notification message comprises an IP address of a second eNodeB. The first eNodeB and the second eNodeB are adjacent base stations. The first PE searches for a pre-established routing table on the basis of the IP address of the second eNodeB. The first PE acquires a routing table entry having the IP of the second eNodeB as a destination IP and having an entry of the second PE as a match for a next hop. The first PE establishes via a label distribution protocol an LSP connection to the second PE. As such, an LSP network connection is established between PEs respectively having a direct IP layer connection-relation to the adjacent base station.