堆叠之实战，两台交换机一根堆叠线如何做堆叠？三台交换机三根堆叠线呢？

简单概述

堆叠的核心思想是将多台设备连接在一起，进行必要的配置后，虚拟化成一台设备。堆叠成功之后，主交换机、备份交换机、从交换机都是可以正常转发数据的，因为做了堆叠的交换机逻辑成为一台交换机了。要是只有主交换机在转发数据的话，那做堆叠是没有成功的，需要重新做。你可以假设一下，要是只有主交换机转发数据，备份交换机却不能转发数据，那做堆叠就没有意义了！所以主交换机、备份交换机、从交换机都是可以正常转发数据的。

以交换机H3C S5130型号为例

堆叠线

用一根堆叠线在两台交换机的52端口相连（做堆叠有什么线才能成功的做堆叠么？可以用网线，下图就是用网线做的堆叠；可用光纤跳线做堆叠；还有就是堆叠线）

光纤跳线：

下面实操的堆叠线用的是网线：

两台交换机一根堆叠线如何做堆叠？

两台交换机一根堆叠线如何做堆叠？真机来一波实操。

基本配置

S2

 
  
    reboot //重启 
  

[H3C]irf member 2 priority 20 //IRF中成员编号为2的设备的优先级为20 [H3C]interface ten-gigabitethernet 2/0/52 [H3C-Ten-GigabitEthernet2/0/52]shutdown //端口关闭 [H3C-Ten-GigabitEthernet2/0/52]quit [H3C]irf-port 2/2 //进入IRF端口2/2 [H3C-irf-port2/2]port group interface ten-gigabitethernet 2/0/52 [H3C-irf-port2/2]quit [H3C]interface ten-gigabitethernet 2/0/52 [H3C-Ten-GigabitEthernet2/0/52]undo shutdown //开启端口 [H3C-Ten-GigabitEthernet2/0/52]quit [H3C]irf-port-configuration active //激活IRF端口的配置 [H3C]save force 

S1

[H3C]irf member 1 priority 30 [H3C]interface ten-gigabitethernet 1/0/52 [H3C-Ten-GigabitEthernet1/0/51]shutdown [H3C-Ten-GigabitEthernet1/0/51]quit [H3C]irf-port 1/1 [H3C-irf-port1/1]port group interface ten-gigabitethernet 1/0/52 [H3C-irf-port1/1]quit [H3C]interface ten-gigabitethernet 1/0/52 [H3C-Ten-GigabitEthernet1/0/51]undo shutdown [H3C-Ten-GigabitEthernet1/0/51]quit [H3C]save f [H3C]irf-port-configuration active 

测试一下主交换机，备交换机是否能正常转发数据？

首先划分VLAN，这里直接使用默认的VLAN 1

给VLAN 1 配置网关IP地址为：192.168.2.1/24

[H3C]interface Vlan-interface 1 [H3C-Vlan-interface1]ip address 192.168.2.1 24 [H3C-Vlan-interface1]quit [H3C]int g1/0/1 [H3C-GigabitEthernet1/0/1]port link-type access [H3C-GigabitEthernet1/0/1]port access vlan 1 [H3C-GigabitEthernet1/0/1]quit [H3C] [H3C]interface GigabitEthernet 2/0/1 [H3C-GigabitEthernet2/0/1]port link-type access [H3C-GigabitEthernet2/0/1]port access vlan 1 [H3C-GigabitEthernet2/0/1]quit [H3C] 

简单测试

进行PING测试（主交换机）

ping 192.168.2.1

由以上输出结果可知，已通。

进行PING测试（备交换机）

ping 192.168.2.1

由以上输出结果可知，已通。

三台交换机三根堆叠线呢？

交换机为H3C，型号为S5130

拓扑

基本配置

 
  
    system-view [H3C]irf member 1 priority 30 [H3C]interface range ten-gigabitethernet 1/0/51 to ten-gigabitethernet 1/0/52 [H3C-if-range]shutdown [H3C-if-range]quit [H3C]irf-port 1/1 [H3C-irf-port1/1]port group interface ten-gigabitethernet 1/0/51 [H3C-irf-port1/1]quit [H3C]irf-port 1/2 [H3C-irf-port1/2]port group interface ten-gigabitethernet 1/0/52 [H3C-irf-port1/2]quit [H3C]interface range ten-gigabitethernet 1/0/51 to ten-gigabitethernet 1/0/52 [H3C-if-range]undo shutdown [H3C-if-range]return 
   
     save f 
    
      sys [H3C]irf-port-configuration active 
     
    
  

[H3C]irf member 1 renumber 2

 
  
    system-view [H3C]irf member 2 priority 20 [H3C]interface range ten-gigabitethernet 2/0/51 to ten-gigabitethernet 2/0/52 [H3C-if-range]shutdown [H3C-if-range]quit [H3C]irf-port 2/1 [H3C-irf-port2/1]port group interface ten-gigabitethernet 2/0/51 [H3C-irf-port2/1]quit [H3C]irf-port 2/2 [H3C-irf-port2/2]port group interface ten-gigabitethernet 2/0/52 [H3C-irf-port2/2]quit [H3C]interface range ten-gigabitethernet 2/0/51 to ten-gigabitethernet 2/0/52 [H3C-if-range]undo shutdown [H3C]return 
   
     save f 
    
      sys [H3C]irf-port-configuration active 
     
    
  

[H3C]irf member 1 renumber 3 [H3C]quit 
  
    reboot 
  

 
  
    sys [H3C]irf member 3 priority 10 [H3C]interface range ten-gigabitethernet 3/0/51 to ten-gigabitethernet 3/0/52 [H3C-if-range]shutdown [H3C-if-range]quit [H3C]irf-port 3/1 [H3C-irf-port3/1]port group interface ten-gigabitethernet 3/0/51 [H3C-irf-port3/1]quit [H3C]irf-port 3/2 [H3C-irf-port3/2]port group interface ten-gigabitethernet 3/0/52 [H3C-irf-port3/2]quit [H3C]interface range ten-gigabitethernet 3/0/51 to ten-gigabitethernet 3/0/52 [H3C-if-range]undo shutdown [H3C-if-range]return 
   
     save f 
    
      sys [H3C]irf-port-configuration active 
     
    
  

OK

堆叠口交叉连接 [SWA]stack slot 0 pri 150 [SWA]interface stack-port 0/1 port interface gig 0/0/21 enable [SWA]interface stack-port 0/2 port interface gig 0/0/22 enable save [SWB]interface stack-port 0/1 port interface gig 0/0/21 enable [SWB]interface stack-port 0/2 port interface gig 0/0/22 enable [SWB]stack slot 0 pri 120 [SWB]stack slot 0 renumber 1 save 配置完成后直接断电，先启动堆叠主，后启动堆叠备。 如果错配堆叠接口的话，需要进行删除，执行命令： interface stack-port 0/1 shutdown interface g0/0/21 undo port interface g0/0/21 enable