| 摘要 |
Disclosed is a multi-domain route computation method, comprising: when it is determined that two or more domains deployed with a path computation element (PCE) exist in a network, computing a routing path between a first domain PCE and a tail domain PCE in the two or more domains deployed with a PCE by means of extended backward recursive path computation (BRPC), and computing a routing path in a domain except the two or more domains deployed with a PCE by using an RC. Also disclosed are a multi-domain route computation device, a PCE, and a routing network. The present invention can improve the path computation optimality to a great extent, and the path computation efficiency is pretty high. |
