網絡情況如下：
用戶1網絡：172.16.1.0/24 用戶2網絡： 192.168.1.0/24 至出口1網絡：172.16.100.0/24 至出口2網絡：192.168.100.0/24
實現功能：用戶1通過互聯網出口1，用戶2通過互聯網出口2。
功能實現：在三層交換台機上配置默認路由，將數據包丟向192.168.100.253，再利用策略路由，凡是用戶2網絡IP192.168.1.0/24的地址都丟向172.16.100.253。
配置步驟：
說明：這里接口的配置等操作略。
1、首先建立默認路由，將所有的數據包都丟往出口2的下一節點192.168.100.253
[H3C5500] ip route-static 0.0.0.0 0.0.0.0 192.168.100.253
2、配置流分類1，對象為172.16.1.0/24的數據
[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、配置剛才定義的流分類的行為，定義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、將剛才設置的應用至QOS策略中，定義policy 1
[H3C5500] qos policy 1 [H3C5500-qospolicy-1] classifier 1 behavior 1 [H3C5500-qospolicy-1] quit
5、在接口上應用定義的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（略過一些接口配置信息）：
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