一、基础知识之（交换机的）虚接口 vlan1. 端口加入vlan

[S1]interface GigabitEthernet 0/0/1

[S1-GigabitEthernet0/0/1]port link-type access 接口模式配置为access模式

(资料图片仅供参考)

[S1-GigabitEthernet0/0/1]port default vlan 2 接口加入 vlan2

display vlan 查看当前配置的 vlan

2.多个端口加入vlan

[S1]port-group 1 创建端口组

[S1-port-group-1]group-memberg0/0/1 to g0/0/10添加端口组成员

[S1-port-group-1]port link-typeaccess

[S1-port-group-1]portdefault vlan 2

3.Trunk配置

[Huawei]interfaceGigabitEthernet 0/0/5

[Huawei-GigabitEthernet0/0/5]portlink-type trunk 配置接口模式为truk模式

[Huawei-GigabitEthernet0/0/5]porttrunk allow-pass vlan all 配置trunk链路允许通过的vlan

4.配置 hybrid

[sw1]vlan batch 10 //创建vlan10[sw1] interface g0/0/1 //进入接口g0/0/1[sw1-g0/0/1]port link-type hybrid //将接口改为hybrid模式[sw1-g0/0/1]port hybrid pvid vlan 10 //配置接口的pvid为10[sw1-g0/0/1]port hybrid untagged vlan 10 //接口发送数据帧时，允许vlan10的数据帧通过，并且剥离数据帧中的vlan10标签

[sw1] interface g0/0/2 //进入接口g0/0/2[sw1-g0/0/2]port link-type hybrid //将接口改为hybrid模式[sw1-g0/0/2]port hybrid pvid vlan 10 //配置接口的pvid为10[sw1-g0/0/2]port hybrid untagged vlan 10 //接口发送数据帧时，允许vlan10的数据帧通过，并且剥离数据帧中的vlan10标签

验证与测试：pc1 ping pc2 可以互通

二，需求变化之路由交换配置1.快速生成树-负载均衡

需求

PC1属于 vlan 10 ，IP地址为 192.168.10.1/24，网关为 192.168.10.254PC2属于 vlan 20 ，IP地址为 192.168.20.1/24，网关为 192.168.20.254确保PC1与PC2互通合理配置 MSTP ，确保PC1与PC2之间的互通路径是最优的

配置步骤：

配置PC的IP地址在所有的交换机中都创建vlan10和vlan20交换机连接PC的接口设置为access模式，并加入指定的vlan交换机和交换机互联的接口设置trunk模式，并允许vlan10和vlan20 通过在所有的交换机中配置MSTP，所有交换机中的MSTP配置都要完全相同指定SW1为vlan10的主根， vlan20的备根指定SW2为vlan20的主根， vlan10的备根配置路由器接口的IP地址

命令：

1 S1、S2、S3创建vlan并配置连接交换机的端口为trunk 2 [S1]VLAN batch 10 20 3 [S1]port-group 1 4 [S1-port-group-1]group-member G0/0/5 G0/0/6 5 [S1-port-group-1]port link-type trunk 6 [S1-GigabitEthernet0/0/5]port trunk allow-pass vlan ALL 7  8 [S2]VLAN batch 10 20 9 [S2]port-group 110 [S2-port-group-1]group-member G0/0/5 G0/0/611 [S2-port-group-1]port link-type trunk12 [S2-GigabitEthernet0/0/5]port trunk allow-pass vlan ALL13 14 [S3]VLAN batch 10 2015 [S3]port-group 116 [S3-port-group-1]group-member G0/0/5 G0/0/617 [S3-port-group-1]port link-type trunk18 [S3-GigabitEthernet0/0/5]port trunk allow-pass vlan ALL19 20 S1、S2、S3配置MSTP区域并激活21 [S1]stp mode mstp 启用MSTP协议22 [S1]stp region-configuration 创建区域23 [S1-mst-region]region-name ntd 定义区域名为ntd24 [S1-mst-region]instance 1 vlan 10 指定vlan与实例的对应关系25 [S1-mst-region]instance 2 vlan 2026 [S1-mst-region]active region-configuration 激活区域配置27 28 29 [S2]stp mode mstp 启用MSTP协议30 [S2]stp region-configuration 创建区域31 [S2-mst-region]region-name ntd 定义区域名为ntd32 [S2-mst-region]instance 1 vlan 10 指定vlan与实例的对应关系33 [S2-mst-region]instance 2 vlan 2034 [S2-mst-region]active region-configuration 激活区域配置35 36 [S3]stp mode mstp 启用MSTP协议37 [S3]stp region-configuration 创建区域38 [S3-mst-region]region-name ntd 定义区域名为ntd39 [S3-mst-region]instance 1 vlan 10 指定vlan与实例的对应关系40 [S3-mst-region]instance 2 vlan 2041 [S3-mst-region]active region-configuration 激活区域配置42 43 3）配置S1为vlan10的主根、vlan20的次根网桥并查看配置44 [S1]stp instance 1 priority 409645 [S1]stp instance 2 priority 819246 47 4）配置S2为vlan20的主根、vlan10的次根根网桥并查看配置48 [S2]stp instance2 priority 409649 [S2]stp instance 1 priority 819250 51 5）配置PC1加入vlan10、PC2加入vlan20**52 [S3]interface GigabitEthernet 0/0/153 [S3-GigabitEthernet0/0/1]port link-type access54 [S3-GigabitEthernet0/0/1]port default vlan 1055 [S3]interface GigabitEthernet 0/0/256 [S3-GigabitEthernet0/0/2]port link-type access57 [S3-GigabitEthernet0/0/2]port default vlan 2058 59 **6）配置S1与路由相连的接口加入vlan10**60 [S1]interface GigabitEthernet 0/0/161 [S1-GigabitEthernet0/0/1]port link-type access62 [S1-GigabitEthernet0/0/1]port default vlan 1063 64 **7）配置S2与路由相连的接口加入 vlan20**65 [S2]interface GigabitEthernet 0/0/266 [S2-GigabitEthernet0/0/2]port link-type access67 [S2-GigabitEthernet0/0/2]port default vlan 2068 69 **8）配置路由器接口IP**70 [R1]interface GigabitEthernet 0/0/171 [R1-GigabitEthernet0/0/1]ip address 192.168.10.254 2472 [R1]interface GigabitEthernet 0/0/273 [R1-GigabitEthernet0/0/2]ip address 192.168.20.254 2474 75 **9）测试与验证**76 pc1 ping pc2 通77 78 **10）查看验证**

display stp brief查看S1的instance 1 g0/0/5 g0/0/6都是指定接口查看S2的instance 2 g0/0/5 g0/0/6都是指定接口

2.链路聚合的工作模式 lacp

1）LACP模式也称为M:N模式

2）M条活动链路，N条备份链路

3）当活动链路出现故障时，备份链路才进行转发

配置步骤

1）PC配置IP地址

2）所有的交换机都创建vlan10 20

3) 交换机和pc互联的接口做成access ,并且加入指定的vlan

4）设置交换机的lacp 优先级，确定主动端设备

5) 配置链路聚合

-创建链路聚合组，组号为1

-配置链路聚合的工作模式lacp

-在链路聚合中添加成员接口

-设置接口trunk模式

-设置活动端口（活动链路）的上限阈值为2

-开启lacp 抢占

1 SW1配置：配置好相应交换机的端口（4,5）模式以及 vlan ...10 [SW1]lacp priority 100    //配置lacp的系统优先级（越小越优先）11 [SW1]interface eth-trunk 1   //创建链路聚合组112 [SW1-Eth-Trunk1]mode lacp-static   //链路聚合的工作模式是lacp13 [SW1-Eth-Trunk1]trunkport  g 0/0/1  to  0/0/3   //在链路聚合组中添加成员接口14 [SW1-Eth-Trunk1]port link-type trunk     //设置trunk模式15 [SW1-Eth-Trunk1]port trunk allow-pass vlan 10 20    //允许vlan10 20 流量通过16 [SW1-Eth-Trunk1]max active-linknumber 2   //设置活动端口的上限阈值为2  17 [SW1-Eth-Trunk1]lacp preempt enable   //开启抢占功能18 19 SW2配置：20 [SW2]vlan batch  10  20配置好相应交换机的端口（4,5）模式以及 vlan ....28 [SW2]int eth-trunk 129 [SW2-Eth-Trunk1]mode lacp-static 30 [SW2-Eth-Trunk1]trunkport g 0/0/1 to 0/0/331 [SW2-Eth-Trunk1]port link-type trunk32 [SW2-Eth-Trunk1]port trunk allow-pass vlan 10 2036 测试与验证：37 pc1 ping  pc3  通38 pc1 ping  pc4  通39 40 [SW1]display eth-trunk 1    //显示链路聚合信息                     41 Preempt Delay Time: 30     //抢占延迟30秒        42 System Priority: 100     //系统优先级：100                  43 Least Active-linknumber: 1  Max Active-linknumber: 2 （最大活跃链路：2）                         44 Operate status: up  （状态：up)                  45 --------------------------------------------------------------------------------46 ActorPortName          Status   PortType PortPri  PortNo47 GigabitEthernet0/0/1   Selected 1GE      32768    2  （lacp给本段接口分配的序号） 48 GigabitEthernet0/0/2   Selected 1GE      32768    3     49 GigabitEthernet0/0/3   Unselect 1GE      32768    450 51 备注：  Selected ：被选择的接口      52        Unselect ：位被选择的接口53        PortPri : 端口lacp优先级54        PortNo  ： lacp 协议给成员口分配的编号55 56 Partner: (本段接口所连接的对端设备接口信息）57 --------------------------------------------------------------------------------58 ActorPortName          SysPri   SystemID        PortPri  PortNo59 GigabitEthernet0/0/1   32768    4c1f-ccef-5a42  32768    4 （lacp给对端接口分配的序号）60 GigabitEthernet0/0/2   32768    4c1f-ccef-5a42  32768    5 61 GigabitEthernet0/0/3   32768    4c1f-ccef-5a42  32768    6

链路聚合综合实验

1 [S1]interface Eth-Trunk 1  3 [SW1-Eth-Trunk1]mode lacp-static   5 [S1-Eth-Trunk1]trunkportGigabitEthernet 0/0/3 0/0/4  //注意有空格  7 [S1-Eth-Trunk1]port link-typetrunk  9 [S1-Eth-Trunk1]port trunk allow-pass vlan all 13 [S2]interface Eth-Trunk 1 15 [SW2-Eth-Trunk1]mode lacp-static  17 [S2-Eth-Trunk1]trunkportGigabitEthernet 0/0/5 0/0/6 19 [S2-Eth-Trunk1]port link-typetrunk 21 [S2-Eth-Trunk1]port trunk allow-pass vlan ALL 25 [S3]interface Eth-Trunk 1 27 [SW3-Eth-Trunk1]mode lacp-static  29 [S3-Eth-Trunk1]trunkportGigabitEthernet 0/0/3 0/0/4 31 [S3-Eth-Trunk1]port link-typetrunk 33 [S3-Eth-Trunk1]port trunk allow-pass vlan all 37 [S4]interface Eth-Trunk 1 39 [SW4-Eth-Trunk1]mode lacp-static  41 [S4-Eth-Trunk1]trunkportGigabitEthernet 0/0/5 0/0/6 43 [S4-Eth-Trunk1]port link-typetrunk 45 [S4-Eth-Trunk1]port trunk allow-pass vlan all 49 [S5]interface Eth-Trunk 1 51 [SW5-Eth-Trunk1]mode lacp-static  53 [S5-Eth-Trunk1]trunkportGigabitEthernet 0/0/3 0/0/4 55 [S5-Eth-Trunk1]port link-typetrunk 57 [S5-Eth-Trunk1]port trunkallow-pass vlan all 59 [S5]interface Eth-Trunk 2 61 [SW5-Eth-Trunk2]mode lacp-static  63 [S5-Eth-Trunk2]trunkportGigabitEthernet 0/0/5 0/0/6 65 [S5-Eth-Trunk2]port link-typetrunk 67 [S5-Eth-Trunk2]port trunkallow-pass vlan all 69 [S5]interface Eth-Trunk 3 71 [SW5-Eth-Trunk3]mode lacp-static  73 [S5-Eth-Trunk3]trunkportGigabitEthernet 0/0/7 0/0/8 75 [S5-Eth-Trunk3]port link-typetrunk 77 [S5-Eth-Trunk3]port trunkallow-pass vlan all 81 [S6]interface Eth-Trunk 1 83 [SW6-Eth-Trunk1]mode lacp-static  85 [S6-Eth-Trunk1]trunkportGigabitEthernet 0/0/5 0/0/6 87 [S6-Eth-Trunk1]port link-typetrunk 89 [S6-Eth-Trunk1]port trunkallow-pass vlan all 91 [S6]interface Eth-Trunk 2 93 [SW6-Eth-Trunk2]mode lacp-static  95 [S6-Eth-Trunk2]trunkportGigabitEthernet 0/0/3 0/0/4 97 [S6-Eth-Trunk2]port link-typetrunk 99 [S6-Eth-Trunk2]port trunkallow-pass vlan all101 [S6]interface Eth-Trunk 3103 [SW6-Eth-Trunk3]mode lacp-static 105 [S6-Eth-Trunk3]trunkportGigabitEthernet 0/0/7 0/0/8107 [S6-Eth-Trunk3]port link-typetrunk109 [S6-Eth-Trunk3]port trunk allow-pass vlan all110 111 ## 2）S1-S6创建vlan112 113 [S1]vlan batch 10 20115 [S2]vlan batch 10 20117 [S3]vlan batch 10 20119 [S4]vlan batch 10 20121 [S5]vlan batch 10 20123 [S6]vlan batch 10 20124 125 ## 3)S1-S4端口加入vlan126 127 [S1]interface GigabitEthernet0/0/1129 [S1-GigabitEthernet0/0/1]portlink-type access 131 [S1-GigabitEthernet0/0/1]port default vlan 10135 [S2]interface GigabitEthernet0/0/1137 [S2-GigabitEthernet0/0/1]portlink-type access139 [S2-GigabitEthernet0/0/1]port default vlan 20143 [S3]interface GigabitEthernet0/0/1145 [S3-GigabitEthernet0/0/1]portlink-type access147 [S3-GigabitEthernet0/0/1]port default vlan 10151 [S4]interface GigabitEthernet0/0/1153 [S4-GigabitEthernet0/0/1]portlink-type access155 [S4-GigabitEthernet0/0/1]port default vlan 20