Basic QinQ
, enterprise A has two branches that connect to the carrier network
through PE1 and PE2 respectively. Enterprise A has different services, so different VLANs are
assigned. To save public VLAN IDs, it is required that traffic between two branches of enterprise
A be transparently transmitted through the public network, users using the same service in
different branches of enterprise A be allowed to communicate, and users using different services
be isolated. You can configure QinQ on the network-side interface of the CE to meet the
preceding requirements.
Figure 4-5
Typical networking of basic QinQ
PE1
P
PE2
CE2
CE1
Network
VLAN 10 to 50
Enterprise A
Branch 1
VLAN 10 to 50
Enterprise A
Branch 2
20
10
to
50
20
10
t
o
50
20
10
to
50
20
10 to
50
Selective QinQ
, enterprise A has two branches that connect to the carrier network
through PE1 and PE2 respectively. Enterprise A has different services, so different VLANs are
assigned. Data services are transmitted in VLAN 10 to VLAN 30, and voice services are
transmitted in VLAN 31 to VLAN 50. To save public VLAN IDs, it is required that traffic
between two branches of enterprise A be transparently transmitted through the public network,
users using the same service in different branches of enterprise A be allowed to communicate,
users using different services be isolated, and voice services be transmitted preferentially. You
can configure selective QinQ on the user-side interface of the CE to meet the preceding
requirements.
Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
4 QinQ Configuration
Issue 01 (2014-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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