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Configuration Guide - Interface Management

S7700 and S9700 V200R010C00

This document describes the principles and configurations of interfaces and provides configuration examples.
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Enabling the Log Function for Inbound and Outbound Packet Loss Caused by Congestion

Enabling the Log Function for Inbound and Outbound Packet Loss Caused by Congestion

Context

Network congestion during service transmission may cause packet loss. If a lot of packets are discarded, services are affected. To better monitor the number of discarded packets, you can run the log-threshold { input-discard | output-discard } on an interface to enable the log function for inbound and outbound packet loss caused by congestion. The device generates a log when the number of discarded incoming and outgoing packets on the interface in a specified period exceeds the threshold. Logs help you know the congestion on the interface. You can determine whether to increase the bandwidth or cancel the bandwidth limit on the interface based on the logs. In this way, the congestion problem can be solved.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    log-threshold { input-discard | output-discard } [ threshold-value interval interval-value ]

    The log function for inbound and outbound packet loss caused by congestion is enabled, the threshold for discarded incoming and outgoing packets is configured, and the interval for collecting statistics on discarded packets is configured.

    By default, the log function for inbound and outbound packet loss caused by congestion is disabled on an interface.

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Updated: 2019-04-18

Document ID: EDOC1000141901

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