JuniperSRX---------rpm配合track完成双线主备

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原理就是通过rpm的ping包去检测一个目标地址  然后根据结果切换路由

services {
    rpm {
        probe ISP-PING {
            test ISP_DNS {
                target address 1.1.1.2;           目标地址
                probe-count 15;                      一次测试发几个包
                probe-interval 1;                     每个包间隔几秒
                test-interval 1;                        每个测试间隔几秒
                thresholds {
                    successive-loss 5;              每个测试范围内,连续丢包多少个判断链路失效
                    total-loss 10;                      每个测试范围内,总丢包多少个判断链路失效
                }
                destination-interface ge-0/0/0.0;
                next-hop 1.1.1.2;
            }
        }
    }
    ip-monitoring {
        policy DNS-Tracking {
            match {
                rpm-probe ISP-PING;          需要满足的条件
            }
            then {
                preferred-route {
                    route 0.0.0.0/0 {
                        next-hop 3.3.3.3;         需要更换的路由下一跳
                    }
                }
            }
        }
    }
}


全部做完还要方形rpm的流量

host-inbound-traffic {
                system-services {
                    rpm;
                    ping;
                }
            }



很简单吧

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