No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access 01

This is NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access
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).
Terminology for BPDU Tunneling

Terminology for BPDU Tunneling





Spanning Tree Protocol. A protocol used in the local area network (LAN) to eliminate loops. Devices running STP discover loops in the network by exchanging information with each other, and block certain interfaces to eliminate loops.


Multiple Spanning Tree Protocol. A new spanning tree protocol defined in IEEE 802.1s that introduces the concepts of region and instance. To meet different requirements, MSTP divides a large network into regions where multiple spanning tree instances (MSTIs) are created. These MSTIs are mapped to virtual LANs (VLANs) and bridge protocol data units (BPDUs) carrying information about regions and instances are transmitted between network bridges, and therefore, a network bridge can know which region itself belongs to based on the BPDU information. Multi-instance RSTP is run within regions, whereas RSTP-compatible protocols are run between regions.

QinQ interface

An interface that can process VLAN frames with a single tag (Dot1q termination) or with double tags (QinQ termination).

Acronyms and Abbreviations

Acronym and Abbreviation

Full Name


Spanning Tree Protocol


Multiple Spanning Tree Protocol


Bridge Protocol Data Unit


Virtual Local Area Network


Port Default VLAN ID


802.1Q in 802.1Q

Updated: 2019-01-02

Document ID: EDOC1100058405

Views: 18073

Downloads: 24

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next