Qtech QSW-2910-09T-POE-AC/DC [52/212] Configure global qinq

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 Configure global inner/outer TPID

 Configure interface QinQ

3.7.3 Configure global QinQ

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

dtag

no dtag

For example:

Enable QinQ

QTECH(config)dtag

3.7.4 Configure global inner/outer TPID

For QinQ packet, there are 2 VLAN tags: external VLAN tag (Service tag) and internal VLAN

tag (Customer tag). QTECH S3750G-24/48S can configure TPID in both internal and external

VLAN tag to be other value. These configurations can be effective to the whole switch. The

packet is called double tag packet when the external and internal TPID are matching at the

same time.

!Configure internal TPID command mode to be global

dtag inner-tpid tpid

no dtag inner-tpid

!Configure external TPID command mode to be interface

dtag outer-tpid tpid

no dtag outer-tpid

Example:

Configure internal TPID to be 0x9100

QTECH(config)#dtag inner-tpid 9100

3.7.5 Configure QinQ mode of interface

There are two kinds of interface modes: one is service provider port, the other is customer port.

The former do not permit ignoring tag head of ingress packet and the latter permits.

It is in the interface configuration mode.

dtag mode [ customer | uplink ]

no dtag mode [ customer | uplink ]

Example:

Configure interface to be customer

QTECH(config-if-ethernet-0/0/1)#dtag mode customer