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IV64596: COMMANDS THAT GENERATE OUTPUT ARE SLOW IN TELNET SESSION APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Commands that produce significant amounts of output
    (like ls -l) are slow in telnet session compared e. g. to
    ssh.
    
    Other things to observe in that context are:
    
    When the connection is looked at in "netstat -aon" there
    is
    the same value of 16384 for the "hiwat" and "lowat"
    parameter for the "sndbuf".
    
    If data transfer is inspected using iptrace or tcpdump
    the telnetd will frequently wait for a delayed
    acknowledgement before resuming sending, leaving the
    connection idle for approx. 200 milliseconds.
    

Local fix

  • Use ssh.
    

Problem summary

  • Commands that produce significant amounts of output are slow
    in telnet session
    

Problem conclusion

  • Set the high water mark level of socket buffer to high value
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV61526
    6100-09 - use AIX APAR IV64649
    7100-02 - use AIX APAR IV70262
    7100-03 - use AIX APAR IV64596
    

APAR Information

  • APAR number

    IV64596

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-09-04

  • Closed date

    2014-09-04

  • Last modified date

    2015-09-30

  • APAR is sysrouted FROM one or more of the following:

    IV61526

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865717

       UP15/05/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV64596

Modified date: 30 September 2015