华为交换机策略路由配置

 

 

 配置策略路由(基于IP地址)示例

组网需求

图13-1所示,汇聚层Switch做三层转发设备,接入层设备LSW做用户网关,接入层LSW和汇聚层Switch之间路由可达。汇聚层Switch通过两条链路连接到两个核心路由器上,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。

公司希望汇聚层Switch上送到核心层设备的报文中,源IP地址为192.168.100.0/24的报文通过高速链路传输,而源IP地址为192.168.101.0/24的报文则通过低速链路传输。 

华为交换机策略路由配置

 

配置思路

采用重定向方式实现策略路由,进而提供差分服务,具体配置思路如下:
  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,分别匹配源IP地址为192.168.100.0/24和192.168.101.0/24的报文。
  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GE0/0/3的入方向上,实现策略路由。

操作步骤

  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GE0/0/1、GE0/0/2和GE0/0/3的接口类型为Trunk,并加入VLAN100和VLAN200。

    [Switch] interface gigabitethernet 0/0/1
    [Switch-GigabitEthernet0/0/1] port link-type trunk
    [Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 200
    [Switch-GigabitEthernet0/0/1] quit
    [Switch] interface gigabitethernet 0/0/2
    [Switch-GigabitEthernet0/0/2] port link-type trunk
    [Switch-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 200
    [Switch-GigabitEthernet0/0/2] quit
    [Switch] interface gigabitethernet 0/0/3
    [Switch-GigabitEthernet0/0/3] port link-type trunk
    [Switch-GigabitEthernet0/0/3] port trunk allow-pass vlan 100 200
    [Switch-GigabitEthernet0/0/3] quit

    # 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] quit

     

  2. 配置ACL规则

     

    # 在Switch上创建编码为3001、3002的高级ACL,规则分别为允许源IP地址为192.168.100.0/24和192.168.101.0/24的报文通过。

    [Switch] acl 3001
    [Switch-acl-adv-3001] rule permit ip source 192.168.100.0 0.0.0.255
    [Switch-acl-adv-3001] quit
    [Switch] acl 3002
    [Switch-acl-adv-3002] rule permit ip source 192.168.101.0 0.0.0.255
    [Switch-acl-adv-3002] quit

     

  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 or
    [Switch-classifier-c1] if-match acl 3001
    [Switch-classifier-c1] quit
    [Switch] traffic classifier c2 operator or
    [Switch-classifier-c2] if-match acl 3002
    [Switch-classifier-c2] quit

     

  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] quit

     

  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GE0/0/3的入方向上。

    [Switch] interface gigabitethernet 0/0/3
    [Switch-GigabitEthernet0/0/3] traffic-policy p1 inbound
    [Switch-GigabitEthernet0/0/3] return

     

  6. 验证配置结果

     

    # 查看ACL规则的配置信息。

    <Switch> display acl 3001
    Advanced ACL 3001, 1 rule
    Acl's step is 5
     rule 5 permit ip source 192.168.100.0 0.0.0.255 (match-counter 0)
    <Switch> display acl 3002
    Advanced ACL 3002, 1 rule
    Acl's step is 5
     rule 5 permit ip source 192.168.101.0 0.0.0.255 (match-counter 0)

    # 查看流分类的配置信息。

    <Switch> display traffic classifier user-defined
      User Defined Classifier Information:
        Classifier: c2
         Operator: OR
         Rule(s) :if-match acl 3002
            
        Classifier: c1
          Operator: OR
          Rule(s) : if-match acl 3001
    
    Total 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: p1
       Classifier: c1
        Operator: OR
         Behavior: b1
          Redirect: no forced
            Redirect ip-nexthop
            10.1.20.1
       Classifier: c2
        Operator: OR
         Behavior: b2
          Redirect: no forced
            Redirect ip-nexthop
            10.1.30.1

     

配置文件

  • Switch的配置文件

    #
    sysname Switch
    #
    vlan batch 100 200 
    #
    acl number 3001
     rule 5 permit ip source 192.168.100.0 0.0.0.255
    acl number 3002
     rule 5 permit ip source 192.168.101.0 0.0.0.255
    #
    traffic classifier c1 operator or
     if-match acl 3001
    traffic classifier c2 operator or
     if-match acl 3002
    #
    traffic behavior b1
     redirect ip-nexthop 10.1.20.1
    traffic behavior b2
     redirect ip-nexthop 10.1.30.1
    #
    traffic policy p1 match-order config
     classifier c1 behavior b1
     classifier c2 behavior b2
    #
    interface Vlanif100
     ip address 10.1.20.2 255.255.255.0
    #
    interface Vlanif200
     ip address 10.1.30.2 255.255.255.0
    #
    interface GigabitEthernet0/0/1
     port link-type trunk
     port trunk allow-pass vlan 100 200
    #
    interface GigabitEthernet0/0/2
     port link-type trunk
     port trunk allow-pass vlan 100 200
    #
    interface GigabitEthernet0/0/3
     port link-type trunk
     port trunk allow-pass vlan 100 200
     traffic-policy p1 inbound
    #
    return
    

 摘自官方,博主汇总

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