运营商级边缘路由器平滑切换方案

A Smooth Cutover Scheme for Operator-level Edge Routers

对于通信运营商来说,一部分边缘路由器的入网时间较长,性能老旧,故障率高,影响了业务承载的可靠性和可扩展性,急需升级替换。在实际应用中,一对边缘路由器通常使用热备份机制来提供冗余,更换时需要同时更换2台热备份路由器,并将对下联业务的影响降至最低。针对思科品牌边缘路由器提出了一种异厂家替换方案。通过备份路由器协议转换,在工程上可以实现不同厂家路由器的平滑割接,在不影响下联业务的前提下减少割接次数,降低施工成本。

For communication operators,some customer edge routers have outdated performance and high failure rates,which affect the reliability and scalability of business carrying,and urgently need to be upgraded and replaced.A pair of routers usually use a hot-backup mechanism to provide redundancy in practical applications.When replacing,it is necessary to replace both hot backup routers simultaneously and minimize the impact on downstream services.It proposes a novel replacement solution for edge routers from Cisco brand.By converting backup routing protocols,smooth cutover of routers from different manufacturers can be achieved in engineering,reducing the number of cutovers and construction costs without affecting downstream services.