需求：vlan 10和vlan 20的用户都可以和vlan 30中的PC5进行通信；但是vlan 10和vlan 20的用户之间不可以通信。
- SW1配置如下
#
sysname sw1
#
vlan batch 10 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
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 Ethernet0/0/1
port hybrid pvid vlan 10
port hybrid untagged vlan 10 30
#
interface Ethernet0/0/2
port hybrid pvid vlan 20
port hybrid untagged vlan 20 30
#
interface Ethernet0/0/3
#
interface Ethernet0/0/4
#
interface Ethernet0/0/5
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface Ethernet0/0/8
#
interface Ethernet0/0/9
#
interface Ethernet0/0/10
#
interface Ethernet0/0/11
#
interface Ethernet0/0/12
#
interface Ethernet0/0/13
#
interface Ethernet0/0/14
#
interface Ethernet0/0/15
#
interface Ethernet0/0/16
#
interface Ethernet0/0/17
#
interface Ethernet0/0/18
#
interface Ethernet0/0/19
#
interface Ethernet0/0/20
#
interface Ethernet0/0/21
#
interface Ethernet0/0/22
#
interface GigabitEthernet0/0/1
port hybrid tagged vlan 10 20 30
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return - SW2配置如下
#
sysname sw2
#
vlan batch 10 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
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 Ethernet0/0/1
#
interface Ethernet0/0/2
#
interface Ethernet0/0/3
port hybrid pvid vlan 10
port hybrid untagged vlan 10 30
#
interface Ethernet0/0/4
port hybrid pvid vlan 20
port hybrid untagged vlan 20 30
#
interface Ethernet0/0/5
port hybrid pvid vlan 30
port hybrid untagged vlan 10 20 30
#
interface Ethernet0/0/6
port hybrid pvid vlan 30
port hybrid untagged vlan 30
#
interface Ethernet0/0/7
#
interface Ethernet0/0/8
#
interface Ethernet0/0/9
#
interface Ethernet0/0/10
#
interface Ethernet0/0/11
#
interface Ethernet0/0/12
#
interface Ethernet0/0/13
#
interface Ethernet0/0/14
#
interface Ethernet0/0/15
#
interface Ethernet0/0/16
#
interface Ethernet0/0/17
#
interface Ethernet0/0/18
#
interface Ethernet0/0/19
#
interface Ethernet0/0/20
#
interface Ethernet0/0/21
#
interface Ethernet0/0/22
#
interface GigabitEthernet0/0/1
port hybrid tagged vlan 10 20 30
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return - 至此需求实现
PC1、PC2、PC3、PC4、PC6（和PC5都属于vlan 30）分别和PC5可以互通；
PC1、PC2、PC3、PC4分别和PC6不可以互通；
PC1和PC3互通，PC2和PC4互通；