Advertising and programming preferred path routes using interior gateway protocols

• Main Authors: MAKHIJANI KIRAN, LI RENWEI, CLEMM ALEXANDER, CHUNDURI UMA S, HAN LIN, QU YINGZHEN
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

A method implemented by a network element (NE) in a network, comprising receiving, by the NE, an advertisement comprising preferred path route (PPR) information representing a PPR from a source to a destination in the network, the PPR information comprising a PPR identifier (PPR-ID) and a plurality of PPR description elements (PPR-PDEs) each representing an element on the PPR, receiving, by the NE, a data packet comprising the PPR-ID, and forwarding, by the NE, the data packet having the PPR-ID to a next element on the PPR based on the plurality of PPR-PDEs. 一种由网络中的网元(NE)实现的方法，上述方法包括：NE接收包括优选路径路由(PPR)信息的通告，PPR信息表示网络中从源到目的地的PPR并且包括PPR标识符(PPR-ID)和多个PPR描述元素(PPR-PDE)，上述多个PPR-PDE中的每个PPR-PDE表示PPR上的一个元素；NE接收包括该PPR-ID的数据包；以及NE基于上述多个PPR-PDE向PPR上的下一元素转发具有该PPR-ID的数据包。