写在前面：MAC地址漂移现象是同一个交换机上同一个VLAN从两个端口学习到的同一个MAC地址相互覆盖的现象。
１、拓扑图
２.网络需求
在交换机上配置防MAC地址漂移技术和实现网络互通。
３.配置
通过MAC地址漂移检测技术检测MAC地址是否发生漂移。
[SW2]display current-configuration
sysname SW2
vlan batch 2
cluster enable
ntdp enable
ndp enable
drop illegal-mac alarm
undo mac-learning priority 3 allow-flapping
diffserv domain default
drop-profile default
vlan 2
loop-detect eth-loop block-time 100 retry-times 3
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
interface Vlanif1
interface MEth0/0/1
interface GigabitEthernet0/0/1
interface GigabitEthernet0/0/2
mac-learning priority 3
interface GigabitEthernet0/0/3
interface GigabitEthernet0/0/4
interface GigabitEthernet0/0/5
interface GigabitEthernet0/0/6
interface GigabitEthernet0/0/7
interface GigabitEthernet0/0/8
interface GigabitEthernet0/0/9
interface GigabitEthernet0/0/10
interface GigabitEthernet0/0/11
interface GigabitEthernet0/0/12
interface GigabitEthernet0/0/13
interface GigabitEthernet0/0/14
interface GigabitEthernet0/0/15
interface GigabitEthernet0/0/16
interface GigabitEthernet0/0/17
interface GigabitEthernet0/0/18
interface GigabitEthernet0/0/19
interface GigabitEthernet0/0/20
interface GigabitEthernet0/0/21
interface GigabitEthernet0/0/22
interface GigabitEthernet0/0/23
interface GigabitEthernet0/0/24
interface NULL0
user-interface con 0
user-interface vty 0 4
return