Enabling Flow Control on a GE Interface

To prevent traffic congestion between a local device and its peer device, configure flow control on GE interfaces of both devices to control the rates at which the GE interfaces send and receive packets.

Context

Perform the following steps on each router:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface gigabitethernet interface-number

    The specified Ethernet interface view is displayed.

  3. Run flow control [ receive | send ]

    Flow control is enabled on a GE interface.

    After flow control is enabled on a GE interface, if the rate at which the peer interface sends traffic reaches the set threshold, such as 1 Gbit/s, the interface sends a Pause frame to instruct the peer interface to send traffic at a lower rate. If the peer interface also supports flow control, it sends data at a lower rate after receiving the Pause frame. This allows the local interface to process received frames properly. If the peer interface does not support flow control, it will not send data at a lower rate after receiving the Pause frame.

  4. Run commit

    The configuration is committed.

Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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