场景描述: 一台华为AR系列路由器(图中R1),一台H3C MSR系列路由器,

一台H3C S5500 核心交换机.

AR路由器接入WAN1和WAN2两条线路,H3C路由器接入WAN3线路无线网络专用.

内网使用172.16.x.x/24 ; wifi 使用172.16.100.0/23

大致拓扑如下:

要求:

1. Wifi流量到核心后,经过策略路由调度到Router2出口,且Wifi 能够和内部有线网络实现互通.

2. Wifi下载单IP限速3Mbps

3. Wifi专用线路出口拥塞后,在核心调度流量到Router2的WAN2出口

具体实现:

  1. 核心策略路由:

#acl部分
acl number 3000rule 0 permit ip source 172.16.100.0 0.0.1.255 destination 172.16.0.0 0.0.255.255 acl number 3001rule 0 permit ip source 172.16.100.0 0.0.1.255 #Traffic分流
traffic classifier wifi01 operator andif-match acl 3000
traffic classifier wifi02 operator andif-match acl 3001traffic behavior wifi01filter permit
traffic behavior wifi02redirect next-hop 172.16.253.2 fail-action forward#定义Qos策略qos policy wificlassifier wifi01 behavior wifi01classifier wifi02 behavior wifi02#应用Qos策略
qos vlan-policy wifi vlan 100 inbound

2. Wifi限速

登录Router2:

qos carl 1 destination-ip-address subnet 172.16.100.0 23 per-address
#WAN3接入口
interface GigabitEthernet0/0qos car inbound carl 1 cir 3000 cbs 25000 ebs 0 green pass red

3. 主路由流量调度

#核心修改策略路由
acl number 3000
rule 0 permit ip source 172.16.100.0 0.0.1.255 destination 172.16.0.0 0.0.255.255 #acl中将Wifi网段适当调小,通过掩码控制
acl number 3002description wifi-temp01rule 0 permit ip source 172.16.100.0 0.0.0.255 traffic classifier wifi01 operator andif-match acl 3000
traffic classifier wifi-temp operator andif-match acl 3002traffic behavior wifi01filter permit
traffic behavior wifi-tempredirect next-hop 172.16.253.2 fail-action forward#新的Qos策略
qos policy wifi-tempclassifier wifi01 behavior wifi01classifier wifi-temp behavior wifi-temp
#应用新的Qos策略
qos vlan-policy wifi-temp vlan 100 inbound#修改完核心策略路由,就可以将ACL中指定的wifi流量指定到Router1了, 但是Router1缺省出口路由为WAN1,而我们需要将流量导向到出口WAN2#acl定义
acl number 2055  rule 0 permit source 172.16.100.0 0.0.1.255#定义流类和行为
traffic classifier 1 operator orif-match acl 2055traffic behavior 1redirect ip-nexthop x.x.x.x(WAN2出口下一跳地址)#定义流策略
traffic policy 1classifier 1 behavior 1#应用流策略
#进入路由器内网口
interface GigabitEthernet 0/0/2
traffic-policy 1 inbound

这样就可以根据各个出口拥塞情况随意的进行流量调度了.