一种新的城域网大客户专线热备保护方案

New hot standby protection scheme for MAN key client private line

本文通过对城域网大客户专线的保护现状进行分析,提出了一种新的热备保护方案:由一个管理VRRP实现批量大客户专线的主备切换,部署BFD技术来保证管理VRRP处于合适状态。大客户专线本身不启用VRRP协议,而是在配对SR上配置相同的IP地址。通过备用SR对外发布小COST值的业务路由来实现专线接口主备切换后的下行流量切换。采用本方案,能够节约公网IP地址,实现故障时大客户专线的批量快速自动切换,提升大客户专线的可靠性。

Through analysis of MAN key client private line conservation status, we propose a new hot standby protection scheme, one manage VRRP realize batch standby switch of key client private lines, deploying BFD technology to ensure proper management of the state in manage VRRP. Key client private lines themselves do not enable VRRP protocol, but the same IP address on the pairing SR. Standby SR released by small COST value downstream traffic lanes routed to implement the interface standby switch after switching. Using this program can save public IP address, when failure to achieve large-volume customers fast automatic switching lanes, dedicated to improve the reliability of MAN key client private lines.