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