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How to reduce packet loss with large data streams

This document (3316232) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Desktop 10
SUSE Linux Enterprise Server 10
 

Situation

You experience a high amount of packets being dropped when performing large data stream transfers (>50MByte/s).

Resolution

Increase the ring buffer size of your network card:
 
  1. Check the maximum size of the receive (RX) buffer:
    ethtool -g eth0

    Example output:
    ------------------------------------------------
    Pre-set maximums:
    RX: 4096
    TX: 4096

    Current hardware settings:
    RX: 256
    TX: 256


     
  2. Set the RX buffer to the maximum size:
    ethtool -G eth0 rx 4096

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:3316232
  • Creation Date: 26-Sep-2007
  • Modified Date:04-Mar-2021
    • SUSE Linux Enterprise Desktop
    • SUSE Linux Enterprise Server

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