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DES-7200 Configuration Guide Chapter 12 QinQ Configuration
12-23
DES-7200# show frame-tag tpid
interface [ intf-id ]
Show the TPID value on the interface.
DES-7200# show
inner-priority-trust
Show the priority duplication configuration.
DES-7200# show interface
intf-name remark
Show the priority mapping configuration.
DES-7200# show
mac-address-mapping
Show the address duplication configuration.
DES-7200# show
l2protocol-tunnel { gvrp | stp }
Show the transparent transmisison configuration
of Layer 2 protocols.
12.3 Typical QinQ
configuration example
12.3.1 Using basic QinQ to
realize layer-2 VPN
service
12.3.1.1 Topological diagram
Company A and B have their respective offices, and each office has its
respective network. As shown below, Customer A1, Customer A2, Customer B1
and Customer B2 are all edge devices of Company A and Company B.
Customer A1 and Customer B1 access the public network through the provider
edge device of Provider A, while Customer A2 and Customer B2 access the
public network through the provider edge device of Provider B.
The VLAN range of the office network used by Customer A1-A2 is VLAN1-100,
and that used by Customer B1-B2 is VLAN1-200.
Provider A and Provider B are devices of another manufacturer, with TPID being
0x9100.