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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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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).
What Is the Load Balancing Principle of an Eth-Trunk?

What Is the Load Balancing Principle of an Eth-Trunk?

An Eth-Trunk uses 16 timeslots to send packets in a polling manner at each sending interval.

When the number of Eth-Trunk member interfaces is nth power of 2, traffic can evenly load balanced. For example, when an Eth-Trunk has 2, 4, or 8 member interfaces (divided by 16), the Eth-Trunk can obtain an integral value of timeslots and the load balancing is even. If the number of Eth-Trunk member interfaces is not nth power of 2 (for example, 3), one interface can send packets six times and the other two interfaces can send packets five times. In this case, the load balancing is uneven.

It is recommended that the number of Eth-Trunk member interfaces is nth power of 2 to achieve even load balancing.

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Updated: 2020-01-07

Document ID: EDOC1000060766

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