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.