Trunk 允許通過的vlan研究


新的ENSP顯示

【配置1】

[sw1-GigabitEthernet0/0/1]dis this

#

interface GigabitEthernet0/0/1

port link-type trunk

undo port trunk allow-pass vlan 1 //不允許任何vlan通過

 

 

 

 

[sw1-GigabitEthernet0/0/1]dis port vl ac

T=TAG U=UNTAG

-------------------------------------------------------------------------------

Port Link Type PVID VLAN List

-------------------------------------------------------------------------------

GE0/0/1 trunk 1 - //接口還在 但是不允許任何vlan通過

GE0/0/2 hybrid 1 U: 1

GE0/0/3 hybrid 1 U: 1

GE0/0/4 hybrid 1 U: 1

 

 

 

 

[sw1-GigabitEthernet0/0/1]dis port v

Port Link Type PVID Trunk VLAN List

-------------------------------------------------------------------------------

GigabitEthernet0/0/1 trunk 1 -

GigabitEthernet0/0/2 hybrid 1 -

GigabitEthernet0/0/3 hybrid 1 -

GigabitEthernet0/0/4 hybrid 1 -

GigabitEthernet0/0/5 hybrid 1 -

 

 

 

【配置2】

[sw1-GigabitEthernet0/0/1]dis th

#

interface GigabitEthernet0/0/1

port link-type trunk

port trunk allow-pass vlan 2 to 4094 //允許所有vlan通過 默認vlan1也可以 不打tag

#

 

 

[sw1-GigabitEthernet0/0/1]dis port vl ac

T=TAG U=UNTAG

-------------------------------------------------------------------------------

Port Link Type PVID VLAN List

-------------------------------------------------------------------------------

GE0/0/1 trunk 1 U: 1

T: 10 20 30

GE0/0/2 hybrid 1 U: 1

GE0/0/3 hybrid 1 U: 1

GE0/0/4 hybrid 1 U: 1

 

 

 

 

[sw1-GigabitEthernet0/0/1]dis port v

Port Link Type PVID Trunk VLAN List

-------------------------------------------------------------------------------

GigabitEthernet0/0/1 trunk 1 1-4094 //trunk口 允許所有vlan通過 及時vlan不存在

GigabitEthernet0/0/2 hybrid 1 -

GigabitEthernet0/0/3 hybrid 1 -

GigabitEthernet0/0/4 hybrid 1 -

GigabitEthernet0/0/5 hybrid 1 -

 

 

【配置3】

[sw1-GigabitEthernet0/0/1]dis this

#

interface GigabitEthernet0/0/1

port link-type trunk

undo port trunk allow-pass vlan 1

port trunk allow-pass vlan 2 to 4094

#

[sw1-GigabitEthernet0/0/1]dis port vl ac

T=TAG U=UNTAG

-------------------------------------------------------------------------------

Port Link Type PVID VLAN List

-------------------------------------------------------------------------------

GE0/0/1 trunk 1 T: 10 20 30

GE0/0/2 hybrid 1 U: 1 //其他端口 默認vlan1 都是untag

GE0/0/3 hybrid 1 U: 1

 

 

 

 

[sw1-GigabitEthernet0/0/1]dis port v

Port Link Type PVID Trunk VLAN List

-------------------------------------------------------------------------------

GigabitEthernet0/0/1 trunk 1 2-4094 //trunk口允許通過的vlan為2-4094

GigabitEthernet0/0/2 hybrid 1 -

GigabitEthernet0/0/3 hybrid 1 -

GigabitEthernet0/0/4 hybrid 1 -

GigabitEthernet0/0/5 hybrid 1 -

GigabitEthernet0/0/6 hybrid 1 -

 

 

 

【配置4】

1 -

[sw1-GigabitEthernet0/0/2]dis this

#

interface GigabitEthernet0/0/2

port hybrid tagged vlan 10

port hybrid untagged vlan 20 30

#

 

[sw1-GigabitEthernet0/0/2]

[sw1-GigabitEthernet0/0/2]dis port vl ac

T=TAG U=UNTAG

-------------------------------------------------------------------------------

Port Link Type PVID VLAN List

-------------------------------------------------------------------------------

GE0/0/1 trunk 1 T: 10 20 30

GE0/0/2 hybrid 1 U: 1 20 30

T: 10

GE0/0/3 hybrid 1 U: 1

GE0/0/4 hybrid 1 U: 1

 

 

 

[sw1-GigabitEthernet0/0/2]dis port vl

Port Link Type PVID Trunk VLAN List

-------------------------------------------------------------------------------

GigabitEthernet0/0/1 trunk 1 2-4094 //表示trunk中允許通過的vlan

GigabitEthernet0/0/2 hybrid 1 10 //標識hybrid中打標簽的vlan vlan 20 30

GigabitEthernet0/0/3 hybrid 1 -

GigabitEthernet0/0/4 hybrid 1 -

 

 

 

【配置5】

[sw1-GigabitEthernet0/0/2]dis this

#

interface GigabitEthernet0/0/2

port hybrid tagged vlan 10 40 50

port hybrid untagged vlan 20 30 60

 

 

[sw1-GigabitEthernet0/0/2]dis po vlan active

T=TAG U=UNTAG

-------------------------------------------------------------------------------

Port Link Type PVID VLAN List

-------------------------------------------------------------------------------

GE0/0/1 trunk 1 T: 10 20 30

GE0/0/2 hybrid 1 U: 1 20 30

T: 10 //由於vlan40 50 沒有創建 並不顯示

 

 

[sw1-GigabitEthernet0/0/2]dis po vlan

Port Link Type PVID Trunk VLAN List

-------------------------------------------------------------------------------

GigabitEthernet0/0/1 trunk 1 2-4094

GigabitEthernet0/0/2 hybrid 1 10 40 50 //hybrid口需要打tagged的vlan 並非真實存在的vlan vlan40 50 就沒有創建

GigabitEthernet0/0/3 hybrid 1 -

 

 

 

注意上面的類型  trunk和hybrid 顯示的是不一樣的   trunk表示允許通過的vlan(即使vlan不存在也顯示)    而hybrid表示需要打tagged的vlan (vlan不存在就不顯示)


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