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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Summary of Link Aggregation Configuration Tasks

Summary of Link Aggregation Configuration Tasks

The device supports link aggregation in the manual load balancing mode and Link Aggregation Control Protocol (LACP) mode. In a stack, local traffic is preferentially forwarded by the Eth-Trunk.

Table 3-1 lists the link aggregation configuration tasks.

Table 3-1 Link aggregation configuration tasks
Item Description Task

Configure link aggregation in manual load balancing mode.

In manual load balancing mode, you must manually create an Eth-Trunk and add member interfaces to the Eth-Trunk. All active links forward data and evenly load balance traffic. The manual load balancing mode is often used when the remote device does not support LACP.

Configuring Link Aggregation in Manual Load Balancing Mode

Configure link aggregation in LACP mode.

In LACP mode, you must manually create an Eth-Trunk and add interfaces to the Eth-Trunk. LACP determines active interfaces by negotiating parameters in LACPDUs. LACP provides backup links and ensures high reliability of member links.

Configuring Link Aggregation in LACP Mode

Configure preferential forwarding of local traffic in a stack.

On a network where the stack and Eth-Trunk are used, configure the Eth-Trunk to preferentially forward local traffic to increase bandwidth use efficiency between stack devices and improve traffic forwarding efficiency.

Configuring Preferential Forwarding of Local Traffic in a Stack

Create an Eth-Trunk Layer 3 sub-interface.

Layer 3 Sub-interfaces can be configured on a Layer 3 Eth-Trunk. When Layer 3 devices connect to Layer 2 devices in different VLANs through the Layer 3 Eth-Trunk, Layer 3 sub-interfaces must be configured on the Eth-Trunk to identify packets from different VLANs and to enable users in these VLANs to communicate with each other.

Creating an Eth-Trunk Layer 3 Sub-interface

Updated: 2019-05-08

Document ID: EDOC1100004351

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