3 typical application of vlan-translation – QTECH QSW-3400 Инструкция по настройке User Manual

Page 147

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146

18.4.3 Typical application of VLAN-translation

Scenario:

Edge switch PE1 and PE2 of the ISP internet support the VLAN20 data task between CE1 and

CE2 of the client network with VLAN3. The port1/1 of PE1 is connected to CE1, port1/10 is

connected to public network; port1/1 of PE2 is connected to CE2, port1/10 is connected to

public network.

Vlan translation topology mode

Configuration Item

Configuration Explanation

VLAN-translation

Port1/1 of PE1 and PE2.

Trunk port

Port1/1 and Port1/10 of PE1 and PE2.

Configuration procedure is as follows:

PE1, PE2:
switch(Config)#interface ethernet 1/1
switch(Config-Ethernet1/1)#switchport mode trunk
switch(Config-Ethernet1/1)# vlan-translation enable
switch(Config-Ethernet1/1)# vlan-translation 20 to 3 in
switch(Config-Ethernet1/1)# vlan-translation 3 to 20 out
switch(Config-Ethernet1/1)# exit
switch(Config)#interface ethernet 1/10
switch(Config-Ethernet1/10)#switchport mode trunk
switch(Config-Ethernet1/10)#exit

translation.

SP networks

P

PE1

PE2

CE1

CE2

Trunk connection

Trunk connection

Trunk connection

Trunk

connection

Customer
networks1

Customer
networks2

On the customer port
Trunk VLAN 200-300

The

ingress

of

the

port

translates VLAN20 to VLAN3,
the egress translates VLAN3 to
VLAN20 on PE

On the customer port
Trunk VLAN 20

The

ingress

of

the

port

translates VLAN20 to VLAN3,
the egress translates VLAN3 to
VLAN20 on PE

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