Huawei AR550 Series - Application Environment

Figure 4-4 802.1Q encapsulation
DA
6 Bytes
802.1Q Encapsulation
TPID 2 Bytes
TCI 2 Bytes
0X8100 Priority CFI VLAN ID
3bits 1bit 12bits
SA
6 Bytes
802.1Q TAG
4 Bytes
Length/Type
2 Bytes
Data
46 Bytes~1500 Bytes
FCS
4 Bytes
Carrier's systems may use different TPID values in outer VLAN tags. When a Huawei device
needs to interoperate with such a carrier system, set the TPID value to the value used by the
carrier so that QinQ packets sent from the Huawei device can be transmitted across the carrier
network. To prevent errors in packet forwarding and processing, do not set the TPID to any of
values listed in Table 4-1.
Table 4-1 Protocol types and values
Protocol Type Value
ARP 0x0806
RARP 0x8035
IP 0x0800
IPv6 0x86DD
PPPoE 0x8863/0x8864
MPLS 0x8847/0x8848
IPX/SPX 0x8137
LACP 0x8809
802.1x 0x888E
HGMP 0x88A7
Reserved 0xFFFD/0xFFFE/0xFFFF
4.3 Application Environment
This section describes the applicable environment of QinQ.
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.
127