METHOD, DEVICE AND SYSTEM FOR ESTABLISHING LABEL SWITCHED PATH

摘要

The present application discloses a method, a device and a system for establishing an LSP. The method includes: allocating, by a proxy node device, a label for a destination node device, generating a label mapping message carrying the label, an address of the destination node device and an address of the proxy node device, and sending the label mapping message to an upstream node device to initiate establishment of a first LSP from an entry node device to the proxy node device; stitching, by the proxy node device, the first LSP with a second LSP to form a third LSP from the entry node device to the destination node device, where the second LSP is an LSP established between the proxy node device and the destination node device.

主权项

1. A method for establishing a label switched path (LSP), the method comprising:
allocating, by a proxy node device, a label for a destination node device; generating, by the proxy node device, a label mapping message, wherein the label mapping message carries the label, an address of the destination node device and an address of the proxy node device; sending, by the proxy node device, the label mapping message to an upstream node device of the proxy node device to initiate establishment of a first LSP from an entry node device to the proxy node device; and stitching, by the proxy node device, the first LSP with a second LSP to form a third LSP from the entry node device to the destination node device, wherein the second LSP is an LSP established between the proxy node device and the destination node device, and wherein the first LSP and the second LSP are LSPs of different protocol types.