IBM Support

IV08793: DATA CONNECTION IS NOT ESTABLISHED IN ACTIVE MODE FTP CLIENT APPLIES TO AIX 7100-01

A fix is available

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APAR status

  • Closed as program error.

Error description

  • After applying APAR IZ99702, ftp client can wait for data
    connection
    from ftp server which immediately returns error in reused
    port
    situation. However, data connection can not still be
    established
    if ftp server has a long TIME_WAIT timer.
    

Local fix

  • Use passive mode.
    

Problem summary

  • When doing a bulk file transfer using mget or mput subcommands
    of ftp, if the server fails to establish a data connection
    because we re-used a port and the port is in TIME_WAIT state
    on the server, it sends an error code. In this case,  we retry
    the command till 90 seconds and then time out. But for some
    servers like windows or solaris, the TIME_WAIT state can be
    longer than 90 seconds. So we time out in the AIX ftp client
    and the data transfer for some of the files may fail.
    The following messages may be displayed in this situation:
    
    425 Can't open data connection
    

Problem conclusion

  • Added a new argument '-T' which tells ftp the time it should
    retry the command in case server is not able to establish the
    data connection and returns error '425'. So, use ftp as
    ftp -T <timeout> <Hostname>
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV08793

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2011-10-05

  • Closed date

    2011-10-05

  • Last modified date

    2013-02-27

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

    IV03637

  • 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 U843468

       UP12/05/11 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
27 February 2013