ethernet-switching-options {
    analyzer VPNtranet {
        ratio 1;
        loss-priority low;
        input {
            ingress {
                interface ge-1/0/21.0;
            }
            egress {
                interface ge-1/0/22.0;
            }
        }
        output {
            interface {
                ge-1/0/23.0;
            }
        }
    }
}