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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R011C10

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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Link Aggregation in Manual Mode

Link Aggregation in Manual Mode

Link aggregation can work in manual or static LACP mode depending on whether LACP is used.

In manual mode, you must manually create an Eth-Trunk and add member interfaces to the Eth-Trunk. In this mode, LACP is not required. The manual mode applies to the scenario where a high link bandwidth between two directly connected devices is required but the remote device does not support the LACP protocol. This mode can increase bandwidth, enhance reliability, and implement load balancing.

As shown in Figure 3-2, an Eth-Trunk is created between DeviceA and DeviceB. In manual mode, three active links participate in data forwarding and load balance traffic. When one link becomes faulty, the remaining two links load balance traffic.

Figure 3-2  Link aggregation in manual mode
Updated: 2019-10-18

Document ID: EDOC1000178310

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