【摘要】 地面用户接入卫星网络时，往往因分布不均导致卫星负载失衡及网络拥堵。为解决这一问题，本文介绍了一种基于区域划分的多协议标签交换(MPLS)流量工程路由算法。该算法基于区域划分，运用MPLS技术进行流量工程优化。与未进行区域划分时比较，流量拒绝率明显减少。在轻负载区域采用预加权的最短路径算法，合理分配路径。在流量较多的重负载区域采用最小冲突度路由算法，与最短路径算法、最宽-最短路径算法和最短-最宽路径算法相比，不仅减少了流量请求数量较多时容易产生的负载不均衡状况，还明显降低了网络拥塞的可能性。这一改进显著提升了低轨卫星网络的稳定性与可靠性，为用户提供了更为流畅、稳定的网络接入体验。更多还原

【Abstract】 When ground users access satellite networks, uneven distribution often leads to satellite load imbalance and network congestion. To address this issue, the article introduces an MPLS traffic engineering routing algorithm based on regional division. This algorithm leverages multi-protocol label switching(MPLS) technology to optimize traffic engineering through regional partitioning. Compared to scenarios without regional division, the traffic rejection rate is significantly reduced. In low-load areas, a pre-weighted shortest path algorithm is used to allocate paths more effectively. In high-load areas with heavier traffic, a minimum-conflict-degree routing algorithm is adopted. Compared to the shortest path algorithm, the widest-shortest path algorithm, and the shortest-widest path algorithm, this approach not only mitigates the load imbalance caused by a high number of traffic requests but also significantly reduces the likelihood of network congestion. This improvement greatly enhances the stability and reliability of low-earth orbit satellite networks, providing users with a smoother and more stable network access experience.更多还原