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).
Overview of M-LAG
Definition
Multichassis Link Aggregation Group (M-LAG) implements link aggregation among multiple devices. In a dual-active system shown in Figure 4-1, one device is connected to two devices through M-LAG to achieve device-level link reliability.
Purpose
As an inter-device link aggregation technology, M-LAG increases link bandwidth, improves link reliability, and implements load balancing. It has the following advantages:
High reliability
M-LAG protects link reliability for entire devices.
Simplified network and configuration
M-LAG is a horizontal virtualization technology that virtualizes two dual-homed devices into one device. M-LAG prevents loops on a Layer 2 network and implements redundancy, without performing laborious spanning tree protocol configuration. M-LAG greatly simplifies the network and configuration.
Independent upgrade
Two devices can be upgraded independently. This prevents service interruption when either device is upgrading.
Reference
- M-LAG Best Practices: CloudEngine Series Switches M-LAG Technical Topics
- Video: CloudEngine Series Switch M-LAG Feature Introduction