//1.配置路由策略如下：
root@ex4200# top
root@ex4200# edit policy-options 

{master:0}[edit policy-options]
root@ex4200# show 
policy-statement default-static {
    term accept-default-static {
        from {
            protocol static;
            route-filter 172.16.1.0/24 exact;
            route-filter 192.168.0.0/16 orlonger;
        }
        then accept;
    }
}
policy-statement my-reject-static {
    term reject-default-static {
        from {
            route-filter 172.16.1.0/24 exact;
            route-filter 192.168.0.0/16 orlonger;
        }
        then reject;
    }
}

//2.在new_instance路由器上配置静态路由，查看到如下：

{master:0}[edit routing-instances new_instance routing-options]
root@ex4200# set static route 172.16.1.0/24 next-hop 101.7.158.1 
root@ex4200# set static route 192.168.2.0/24 next-hop 101.7.156.2 

{master:0}[edit routing-instances new_instance routing-options]
root@ex4200# show 
static {
    route 172.16.1.0/24 next-hop 101.7.158.1;
    route 192.168.2.0/24 next-hop 101.7.156.2;
}

//3.进入ospf协议设置导出策略，仅仅把该路由器new_instance的静态路由172.16.1.0/24转换成ospf路由，
//以便其他路由器学习到该条路由,这样就不用重复在其他路由器上配置该静态路由
{master:0}[edit routing-instances new_instance protocols ospf]
root@ex4200# show 
area 0.0.0.0 {
    interface ge-0/0/16.0;
    interface ge-0/0/18.0;
    interface ge-0/0/22.0;
}

{master:0}[edit routing-instances new_instance protocols ospf]
root@ex4200# set export default-static 

{master:0}[edit routing-instances new_instance protocols ospf]
root@ex4200# exit 

{master:0}[edit routing-instances new_instance]
root@ex4200# show 
instance-type virtual-router;
interface ge-0/0/16.0;
interface ge-0/0/18.0;
interface ge-0/0/22.0;
routing-options {
    static {
    route 172.16.1.0/24 next-hop 101.7.158.1;
    route 192.168.2.0/24 next-hop 101.7.156.2;
    }
}
protocols {
    ospf {
        export default-static;
        area 0.0.0.0 {
            interface ge-0/0/16.0;
            interface ge-0/0/18.0;
            interface ge-0/0/22.0;
        }
    }
}

//4.其他实例接受external ospf，但是new_instance4 路由实例拒绝接受 external ospf路由

root@ex4200# edit routing-instances new_instance4 protocols ospf
{master:0}[edit routing-instances new_instance4 protocols ospf]
root@ex4200# set import my-reject-static 

{master:0}[edit routing-instances new_instance4]
root@ex4200# show 
instance-type virtual-router;
interface ge-0/0/19.0;
interface ge-0/0/21.0;
interface ge-0/0/23.0;
protocols {
    ospf {
        import my-reject-static;
        area 0.0.0.1 {
            interface ge-0/0/19.0;
            interface ge-0/0/21.0;
            interface ge-0/0/23.0;
        }
    }
}


//5.查看其他路由器上从new_instance路由器实例学习到的ospf动态路由，
//注意external OSPF路由，其权值为 OSPF/150

root@ex4200# run show route protocol ospf 

inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden)

new_instance.inet.0: 13 destinations, 14 routes (13 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

101.7.151.0/24     *[OSPF/10] 01:20:56, metric 2
                    > to 101.7.156.2 via ge-0/0/18.0
101.7.152.0/24     *[OSPF/10] 01:21:06, metric 2
                    > to 101.7.156.2 via ge-0/0/18.0
101.7.153.0/24     *[OSPF/10] 01:21:01, metric 3
                    > to 101.7.156.2 via ge-0/0/18.0
101.7.157.0/24     *[OSPF/10] 01:21:06, metric 2
                    > to 101.7.156.2 via ge-0/0/18.0
                      to 101.7.158.1 via ge-0/0/22.0
192.168.2.0/24      [OSPF/10] 01:21:01, metric 3
                    > to 101.7.156.2 via ge-0/0/18.0
192.168.50.0/24    *[OSPF/150] 00:54:22, metric 0, tag 0
                    > to 101.7.156.2 via ge-0/0/18.0
224.0.0.5/32       *[OSPF/10] 01:22:22, metric 1
                      MultiRecv
                                        
new_instance1.inet.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
                                        
101.7.151.0/24     *[OSPF/10] 01:20:56, metric 2
                    > to 101.7.157.1 via ge-0/0/14.0
101.7.152.0/24     *[OSPF/10] 01:20:56, metric 2
                    > to 101.7.157.1 via ge-0/0/14.0
101.7.153.0/24     *[OSPF/10] 01:20:56, metric 3
                    > to 101.7.157.1 via ge-0/0/14.0
101.7.156.0/24     *[OSPF/10] 01:20:56, metric 2
                    > to 101.7.158.2 via ge-0/0/10.0
                      to 101.7.157.1 via ge-0/0/14.0
172.16.1.0/24      *[OSPF/150] 01:21:06, metric 0, tag 0
                    > to 101.7.158.2 via ge-0/0/10.0
192.168.2.0/24     *[OSPF/10] 01:20:56, metric 3
                    > to 101.7.157.1 via ge-0/0/14.0
192.168.50.0/24    *[OSPF/150] 00:54:22, metric 0, tag 0
                    > to 101.7.157.1 via ge-0/0/14.0
224.0.0.5/32       *[OSPF/10] 01:22:22, metric 1
                      MultiRecv         
                                        
new_instance2.inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
                                        
101.7.153.0/24     *[OSPF/10] 01:21:00, metric 2
                    > to 101.7.151.2 via ge-0/0/1.0
                      to 101.7.152.2 via ge-0/0/3.0
101.7.158.0/24     *[OSPF/10] 01:20:55, metric 2
                      to 101.7.156.1 via ge-0/0/4.0
                    > to 101.7.157.2 via ge-0/0/6.0
172.16.1.0/24      *[OSPF/150] 01:21:06, metric 0, tag 0
                    > to 101.7.156.1 via ge-0/0/4.0
192.168.2.0/24     *[OSPF/10] 01:21:06, metric 2
                    > to 101.7.152.2 via ge-0/0/3.0
224.0.0.5/32       *[OSPF/10] 01:22:22, metric 1
                      MultiRecv         
                                        
new_instance3.inet.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
                                        
101.7.152.0/24     *[OSPF/10] 01:21:01, metric 2
                    > to 101.7.151.1 via ge-0/0/5.0
                      to 101.7.153.1 via ge-0/0/9.0
101.7.156.0/24     *[OSPF/10] 01:21:01, metric 2
                    > to 101.7.151.1 via ge-0/0/5.0
101.7.157.0/24     *[OSPF/10] 01:20:51, metric 2
                    > to 101.7.151.1 via ge-0/0/5.0
101.7.158.0/24     *[OSPF/10] 01:21:01, metric 3
                    > to 101.7.151.1 via ge-0/0/5.0
172.16.1.0/24      *[OSPF/150] 01:21:01, metric 0, tag 0
                    > to 101.7.151.1 via ge-0/0/5.0
192.168.2.0/24     *[OSPF/10] 01:21:01, metric 2
                    > to 101.7.153.1 via ge-0/0/9.0
192.168.50.0/24    *[OSPF/150] 00:54:22, metric 0, tag 0
                    > to 101.7.151.1 via ge-0/0/5.0
224.0.0.5/32       *[OSPF/10] 01:22:22, metric 1
                      MultiRecv         
                                        
new_instance4.inet.0: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
                                        
101.7.151.0/24     *[OSPF/10] 01:21:06, metric 2
                      to 101.7.152.1 via ge-0/0/19.0
                    > to 101.7.153.2 via ge-0/0/21.0
101.7.156.0/24     *[OSPF/10] 01:21:01, metric 2
                    > to 101.7.152.1 via ge-0/0/19.0
101.7.157.0/24     *[OSPF/10] 01:20:51, metric 2
                    > to 101.7.152.1 via ge-0/0/19.0
101.7.158.0/24     *[OSPF/10] 01:21:01, metric 3
                    > to 101.7.152.1 via ge-0/0/19.0
224.0.0.5/32       *[OSPF/10] 01:22:22, metric 1
                      MultiRecv