华为策略路由配置实例1、组网需求图1 策略路由组网示例图如上图1所示，公司用户通过Switch双归属到外部网络设备。

其中，一条是低速链路，网关为10.1.20.1/24；另外一条是高速链路，网关为10.1.30.1/24。

公司希望上送外部网络的报文中，IP优先级为4、5、6、7的报文通过高速链路传输，而IP优先级为0、1、2、3的报文则通过低速链路传输。

2、配置思路1、创建VLAN并配置各接口，实现公司和外部网络设备互连。

2、配置ACL规则，分别匹配IP优先级4、5、6、7，以及IP优先级0、1、2、3。

3、配置流分类，匹配规则为上述ACL规则，使设备可以对报文进行区分。

4、配置流行为，使满足不同规则的报文分别被重定向到10.1.20.1/24和10.1.30.1/24。

5、配置流策略，绑定上述流分类和流行为，并应用到接口GE2/0/1的入方向上，实现策略路由。

3、操作步骤3.1、创建VLAN并配置各接口# 在Switch上创建VLAN100和VLAN200。

<HUAWEI> system-view[HUAWEI] sysname Switch[Switch] vlan batch 100 200# 配置Switch上接口GE1/0/1、GE1/0/2和GE2/0/1的接口类型为Trunk，并加入VLAN100和VLAN200。

[Switch] interface gigabitethernet 1/0/1[Switch-GigabitEthernet1/0/1] port link-type trunk[Switch-GigabitEthernet1/0/1] port trunk allow-pass vlan 100 200 [Switch-GigabitEthernet1/0/1] quit[Switch] interface gigabitethernet 1/0/2[Switch-GigabitEthernet1/0/2] port link-type trunk[Switch-GigabitEthernet1/0/2] port trunk allow-pass vlan 100 200 [Switch-GigabitEthernet1/0/2] quit[Switch] interface gigabitethernet 2/0/1[Switch-GigabitEthernet2/0/1] port link-type trunk[Switch-GigabitEthernet2/0/1] port trunk allow-pass vlan 100 200 [Switch-GigabitEthernet2/0/1] quit配置LSW与Switch对接的接口为Trunk类型接口，并加入VLAN100和VLAN200。

# 创建VLANIF100和VLANIF200，并配置各虚拟接口IP地址。

[Switch] interface vlanif 100[Switch-Vlanif100] ip address 10.1.20.2 24[Switch-Vlanif100] quit[Switch] interface vlanif 200[Switch-Vlanif200] ip address 10.1.30.2 24[Switch-Vlanif200] quit3.2、配置ACL规则# 在Switch上创建编码为3001、3002的高级ACL，规则分别为允许IP优先级0、1、2、3和允许IP优先级4、5、6、7的报文通过。

[Switch] acl 3001[Switch-acl-adv-3001] rule permit ip precedence 0[Switch-acl-adv-3001] rule permit ip precedence 1[Switch-acl-adv-3001] rule permit ip precedence 2[Switch-acl-adv-3001] rule permit ip precedence 3[Switch-acl-adv-3001] quit[Switch] acl 3002[Switch-acl-adv-3002] rule permit ip precedence 4[Switch-acl-adv-3002] rule permit ip precedence 5[Switch-acl-adv-3002] rule permit ip precedence 6[Switch-acl-adv-3002] rule permit ip precedence 7[Switch-acl-adv-3002] quit3.3、配置流分类在Switch上创建流分类c1、c2，匹配规则分别为ACL 3001和ACL 3002。

[Switch] traffic classifier c1 operator and[Switch-classifier-c1] if-match acl 3001[Switch-classifier-c1] quit[Switch] traffic classifier c2 operator and[Switch-classifier-c2] if-match acl 3002[Switch-classifier-c2] quit3.4、配置流行为# 在Switch上创建流行为b1、b2，并分别指定重定向到网段10.1.20.1/24和10.1.30.1/24的动作。

[Switch] traffic behavior b1[Switch-behavior-b1] redirect ip-nexthop 10.1.20.1[Switch-behavior-b1] quit[Switch] traffic behavior b2[Switch-behavior-b2] redirect ip-nexthop 10.1.30.1[Switch-behavior-b2] quit3.5、配置流策略并应用到接口上# 在Switch上创建流策略p1，将流分类和对应的流行为进行绑定。

[Switch] traffic policy p1[Switch-trafficpolicy-p1] classifier c1 behavior b1[Switch-trafficpolicy-p1] classifier c2 behavior b2[Switch-trafficpolicy-p1] quit# 将流策略p1应用到接口GE2/0/1的入方向上。

[Switch] interface gigabitethernet 2/0/1[Switch-GigabitEthernet2/0/1] traffic-policy p1 inbound [Switch-GigabitEthernet2/0/1] return3.6、验证配置结果# 查看ACL规则的配置信息。

<Switch> display acl 3001Advanced ACL 3001, 4 rulesAcl's step is 5rule 5 permit ip precedence routine (match-counter 0)rule 10 permit ip precedence priority (match-counter 0)rule 15 permit ip precedence immediate (match-counter 0)rule 20 permit ip precedence flash (match-counter 0)<Switch> display acl 3002Advanced ACL 3002, 4 rulesAcl's step is 5rule 5 permit ip precedence flash-override (match-counter 0) rule 10 permit ip precedence critical (match-counter 0)rule 15 permit ip precedence internet (match-counter 0)rule 20 permit ip precedence network (match-counter 0)# 查看流分类的配置信息。

<Switch> display traffic classifier user-definedUser Defined Classifier Information:Classifier: c1Precedence: 5Operator: ANDRule(s) : if-match acl 3001Classifier: c2Precedence: 10Operator: ANDRule(s) :if-match acl 3002Total classifier number is 2# 查看流策略的配置信息。

<Switch> display traffic policy user-defined p1 User Defined Traffic Policy Information: Policy: p1Classifier: c1Operator: ANDBehavior: b1Redirect: no forcedRedirect ip-nexthop10.1.20.1Classifier: c2Operator: ANDBehavior: b2Redirect: no forcedRedirect ip-nexthop10.1.30.14、配置文件Switch的配置文件sysname Switch#vlan batch 100 200#acl number 3001rule 5 permit ip precedence routinerule 10 permit ip precedence priorityrule 15 permit ip precedence immediaterule 20 permit ip precedence flash#acl number 3002rule 5 permit ip precedence flash-overriderule 10 permit ip precedence criticalrule 15 permit ip precedence internetrule 20 permit ip precedence network#traffic classifier c1 operator and precedence 5 if-match acl 3001traffic classifier c2 operator and precedence 10 if-match acl 3002#traffic behavior b1redirect ip-nexthop 10.1.20.1 traffic behavior b2redirect ip-nexthop 10.1.30.1#traffic policy p1 match-order config classifier c1 behavior b1classifier c2 behavior b2#interface Vlanif100ip address 10.1.20.2 255.255.255.0 #interface Vlanif200ip address 10.1.30.2 255.255.255.0 #interface GigabitEthernet1/0/1port link-type trunkport trunk allow-pass vlan 100 200 #interface GigabitEthernet1/0/2port link-type trunkport trunk allow-pass vlan 100 200#interface GigabitEthernet2/0/1port link-type trunkport trunk allow-pass vlan 100 200 traffic-policy p1 inbound#return。