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CLI-based Configuration Guide - Ethernet Switching

AR650, AR1600, and AR6100 V300R003

This document describes how to configure the components for LAN services, including link aggregation groups, VLANs, voice VLANs, MAC address tables, transparent bridging, as well as GVRP, STP/RSTP, and MSTP protocols.
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Licensing Requirements and Limitations for Link Aggregation

Licensing Requirements and Limitations for Link Aggregation

This section describes the notes about configuring an Eth-Trunk.

Involved Network Elements


Licensing Requirements

Ethernet link aggregation is a basic feature of a router and is not under license control.

Feature Limitations

When deploying Link Aggregation on the router, pay attention to the following:

In V300R003C00 version, only the AR651U-A4 does not support link aggregation.

Before an Eth-Trunk Is Configured:
  • Member interfaces cannot be configured with some services. For example, the link type of a member interface cannot be modified, and static MAC address entries cannot be configured.

  • An Eth-Trunk cannot be added to another Eth-Trunk.
  • Member interfaces of an Eth-Trunk must use the same Ethernet type and rate.

    Interfaces that use different Ethernet types and rates cannot join the same Eth-Trunk. For example, GE and FE interfaces cannot join the same Eth-Trunk, and GE electrical and optical interfaces cannot join the same Eth-Trunk.

  • If an interface of the local device is added to an Eth-Trunk, an interface of the remote device directly connected to the interface of the local device must also be added to an Eth-Trunk so that the two ends can communicate.
  • Both devices of an Eth-Trunk must use the same link aggregation mode.
After an Eth-Trunk Is Configured:
  • An Ethernet interface can be added to only one Eth-Trunk. To add an Ethernet interface to another Eth-Trunk, delete it from the original one first.
  • After interfaces are added to an Eth-Trunk, the Eth-Trunk learns MAC addresses and ARP entries but member interfaces do not.
  • Before deleting an Eth-Trunk, delete member interfaces from the Eth-Trunk.
Updated: 2019-04-12

Document ID: EDOC1100041791

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