Vlan; Figure 3-1 Typical Qinq Networking - Zte ZXR10 5250-28TC Product Description

Data frame can be filtered according to MAC address in the following ways:
1 Only the source MAC address of data frame is matched. If the source MAC
address is the set MAC address, the data frame will be filtered.
2 Only the destination MAC address of data frame is matched. If the destination
MAC address is the set MAC address, the data frame will be filtered.
3 The source or destination MAC address of data frame is matched. If the source
or destination MAC address is the set MAC address, the data frame will be
filtered.
3.1.2

VLAN

Support port-based vlan, 1:1 and N:1 vlan translation, PVLAN, QinQ and SVLAN.
QinQ, known as the tunnel protocol based on IEEE 802.1Q encapsulation, is also called
VLAN stack. QinQ adds a VLAN label (external label) outside the existing VLAN label
(internal label). The external label can shield the internal label.
QinQ without protocol support can implement simple L2VPN, and is suitable for mini-
LAN taking L3 switch as the backbone.
Typical QinQ networking is as follows. The port connecting user network is Customer port,
the port connecting SP network is Uplink port, and SP network edge access equipment is
called PE (Provider Edge).

Figure 3-1 Typical QinQ networking

User network
CVLAN1-
100
User network accesses PE via Trunk VLAN. Uplink ports in SP network are connected
symmetrically via Trunk VLAN.
When the packet comes from user network 1 to switch A customer port, no matter
whether the packet is tagged or untagged, switch A will forcedly insert the external label
(VLAN ID is 10). In SP network, the packet reaches switch B via VLAN 10 ports. Switch B
ZTE Confidential Proprietary
SPVLAN 10
customer
port
1
Switch A
PE
SPVLAN 10
Uplink port
2013 ZTE CORPORATION. All rights reserved
SPVLAN 10
Uplink port
Switch B
SP network
PE
SPVLAN 10
customer
port
ZXR10 5250 Product Description
User network
2
CVLAN1-
100
7