今天的实验是
STP
生成树协议
实验设备比较多
但是实验并不复杂
STP
协议是为了防止由于环路而产生的广播风暴和单播风暴
在企业中保障网络的正常运行往往需要对设备进行拢于备份
但是这样做就会产生环路
所以今天我们讲解通过
STP
协议来避免环路的产生。
(命令和
Cisco
的差不多
呵呵
!!!!!!!!!!!!!!)
实验过程如下:
SWA
:(三层设备)
Enter system view, return to user view with Ctrl+Z.
[Quidway]sysname dongli
[dongli]sysname SW1
[SW1]vlan 2
[SW1-vlan2]vlan 3
[SW1-vlan3]vlan 4
[SW1-vlan4]quit
[SW1]stp vlan 1 root primary
[SW1]stp vlan 2
[SW1]stp vlan 2 root primary
[SW1]stp vlan 3 root second
[SW1]stp vlan 4 root second
[SW1]int e0/1
[SW1-Ethernet0/1]port link-type trunk
[SW1-Ethernet0/1]port trunk permit vlan all
[SW1-Ethernet0/1]int e0/2
[SW1-Ethernet0/2]port link-type trunk
[SW1-Ethernet0/2]port trunk permit vlan all
[SW1-Ethernet0/2]int e0/3
[SW1-Ethernet0/3]port link-type trunk
[SW1-Ethernet0/3]port trunk permit vlan all
[SW1-Ethernet0/3]
SW2
:同上
SW3
(接入层设备)
switch>sys
Enter system view, return to user view with Ctrl+Z.
[Quidway]vlan 2
[Quidway-vlan2]vlan 3
[Quidway-vlan3]vlan 4
[Quidway-vlan4]int e0/1
[Quidway-Ethernet0/1]port link-type trunk
[Quidway-Ethernet0/1]port trunk permit vlan all
[Quidway-Ethernet0/1]int e0/2
[Quidway-Ethernet0/2]trunk
?
[Quidway-Ethernet0/2]port link-type trunk
[Quidway-Ethernet0/2]port trunk permit vlan all
[Quidway-Ethernet0/2]
SW4 SW5
同
SW3
我们来测试一下
PC1
:
vlan1
IP
192.168.1.1 PC2 vlan1 IP 192.168.1.2
root@PCA root]# ping 192.168.1.2
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.207 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.100 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.96 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.96 ms
4packets transmitted, 4 received, 0% loss, time 2000ms
没问题
我们把
SW1
的
E0/1
断开测试一下
[root@PCA root]# ping 192.168.1.2
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.207 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.100 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.96 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.96 ms
4packets transmitted, 4 received, 0% loss, time 2000ms
OK
实验成功
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
O(
∩
_
∩
)O~
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