网络情况如下：
用户1网络：172.16.1.0/24 用户2网络： 192.168.1.0/24 至出口1网络：172.16.100.0/24 至出口2网络：192.168.100.0/24
实现功能：用户1通过互联网出口1，用户2通过互联网出口2。
功能实现：在三层交换台机上配置默认路由，将数据包丢向192.168.100.253，再利用策略路由，凡是用户2网络IP192.168.1.0/24的地址都丢向172.16.100.253。
配置步骤：
说明：这里接口的配置等操作略。
1、首先建立默认路由，将所有的数据包都丢往出口2的下一节点192.168.100.253
[H3C5500] ip route-static 0.0.0.0 0.0.0.0 192.168.100.253
2、配置流分类1，对象为172.16.1.0/24的数据
[H3C5500]acl number 3001 [H3C5500-acl-adv-3001] rule 0 permit ip source 172.16.1.0 0.0.0.255 [H3C5500] quit [H3C5500] traffic classifier 1 [H3C5500-classifier-1] if-match acl 3001 [H3C5500-classifier-1] quit
3、配置刚才定义的流分类的行为，定义如果匹配就下一跳至出口1即172.16.100.253
[H3C5500] traffic behavior 1 [H3C5500-behavior-1] redirect next-hop 172.16.100.253 [H3C5500-behavior-1] quit
4、将刚才设置的应用至QOS策略中，定义policy 1
[H3C5500] qos policy 1 [H3C5500-qospolicy-1] classifier 1 behavior 1 [H3C5500-qospolicy-1] quit
5、在接口上应用定义的QOS策略policy 1
[H3C5500] interface GigabitEthernet 1/0/15 [H3C5500-GigabitEthernet1/0/15] qos apply policy 1 inbound [H3C5500-GigabitEthernet1/0/15] quit
至此，配置已完成。
配置文件（略过一些接口配置信息）：
version 5.20, Release 2102P02 # sysname H3C5500 # domain default enable system # telnet server enable # vlan 1 # vlan 100 to 103 # traffic classifier 1 operator and if-match acl 3001 # traffic behavior 1 redirect next-hop 172.16.100.253 # qos policy 1 classifier 1 behavior 1 # dhcp server ip-pool 1 network 192.168.1.0 mask 255.255.255.0 gateway-list 192.168.1.254 dns-list 221.228.255.1 # dhcp server ip-pool 2 network 172.16.1.0 mask 255.255.255.0 gateway-list 172.16.1.254 dns-list 221.228.255.1 # local-user huawei password cipher .]@USE=B,53Q=^Q`M<1!! service-type telnet terminal level 3 # acl number 3001 rule 0 permit ip source 172.16.1.0 0.0.0.255 # interface NULL0 # interface Vlan-interface1 ip address 192.168.0.254 255.255.255.0 # interface Vlan-interface100 ip address 192.168.100.254 255.255.255.0 # interface Vlan-interface101 ip address 192.168.1.254 255.255.255.0 # interface Vlan-interface102 ip address 172.16.100.254 255.255.255.0 # interface Vlan-interface103 ip address 172.16.1.254 255.255.255.0 # interface GigabitEthernet1/0/1 port link-type access port access vlan 100 speed 1000 duplex full # interface GigabitEthernet1/0/2 port link-type access port access vlan 102 speed 1000 duplex full # interface GigabitEthernet1/0/15 port link-type trunk port trunk permit vlan 1 101 103 speed 1000 duplex full qos apply policy 1 inbound # interface GigabitEthernet1/0/16 port link-type trunk port trunk permit vlan 1 101 103 speed 1000 duplex full qos apply policy 1 inbound # ip route-static 0.0.0.0 0.0.0.0 192.168.100.253 # dhcp enable # load xml-configuration # user-interface aux 0 authentication-mode scheme user-interface vty 0 4 authentication-mode scheme user privilege level 3 # return