1、进入配置模式命令：edit
2、配置snmp命令：set snmp community juniper authorization read-write
3、查看软件版本：show version
4、配置sflow：
admin# set protocols sflow collector x.x.x.x udp-port 6343<br>admin# set protocols sflow interfaces ge-0/0/0 polling-interval 30 sample-rate egress 1000<br>admin# set protocols sflow sample-rate egress 1000<br>admin# set protocols sflow sample-rate ingress 1000<br>admin@EX4200# run show sflow //查看全局配置<br>admin@EX4200# show protocols sflow //查看具体配置<br>admin@EX4200# commit //使能、保存配置