Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring QinQ-based Layer 2 Protocol Transparent Transmission
When each interface of a backbone device is connected to multiple user networks and Layer 2 protocol packets sent from user networks contain VLAN tags, configure QinQ-based Layer 2 protocol transparent transmission. This configuration allows Layer 2 protocol packets to be transparently transmitted on the backbone network and reduces VLAN IDs that the carrier uses.
Pre-configuration Tasks
Before configuring QinQ-based Layer 2 protocol transparent transmission, complete the following task:
- Set link layer protocol parameters and IP addresses for interfaces to ensure that the link layer protocol on the interfaces is Up.
Use the bpdu enable command to enable the interfaces to send BPDUs to the CPU.
Previous
