Qtech QSW-3200-28FC [41/136] Brief introduction of qinq

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3.6.6 Add/delete vlan that can be dynamic learnt by GVRP

Use garp permit vlan command to add configured static vlan to GVRP module for other

switches to learn. Configure it in global configuration mode:

garp permit vlan vlan-list

no garp permit vlan [ vlan-list ]

For example: !Add vlan 2, 3, 4 to GVRP

QTECH(config)#garp permit vlan 2-4

3.6.7 Display vlan that can be learnt by GVRP

Use show garp permit vlan command to display current static vlan permitted learning by GVRP

show garp permit vlan

For example:

Display current static vlan permitted learning by GVRP

QTECH(config)#show garp permit vlan

3.6.8 Examples for GVRP configuration

! Enable GVRP on Ethernet port 2

QTECH(config-if-ethernet-0/0/2)#gvrp

! Disable GVRP on Ethernet port 2

QTECH(config-if-ethernet-0/0/2)#no gvrp

3.7 QinQ configuration

3.7.1 Brief introduction of QinQ

QinQ is used for the commnunication between discrete client vlan whose service model is the

interconnection of one or more switches supported QinQ by service provider interfaces which

are in service provider vlan. The interface linking client vlan is called customer interface.

Packet with client vlan tag will add a tag head with the vlan id being service provider vlan when

passing through the customer interface. The tag head will be stripped when passing through

service provider vlan.

3.7.2 QinQ configuration list

 Configure global QinQ

 Configure interface QinQ

3.7.3 Configure global QinQ

There are two types of QinQ but QTECH QSW-3200 only supports the first:

1. Static 802.1q in 802.1q. Vlan protocol number in this mode can be configured but cannot

be configured to ignore tag head of ingress packet. If vlan protocol number is not the same as

the port configuration value or the port is configured to ignore tag head, there will be a new tag

head between the 12th and 13th bit;

2. Flexible 802.1q in 802.1q. Configure port vlan protocol number and the ignorance

attribution of the tag head of ingress port. Only when vlan protocol number of ingress packet is

not the same as the port configuration value and not the default value 8100, a new tag head

will be added. If egress is TAG,TPID of TAG head is configured TPID.

! Use dtag command to enable/disable QinQ globally in global configuration mode.