IBM Support

PI89698: ICMP ERRORS OCCUR FOR HIGH AVAILABILITY PACKET

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APAR status

  • Closed as program error.

Error description

  • The Load Balancer for IPv4 and IPv6 high availability function
    causes ICMP errors for heartbeat packets.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Load       *
    *                  Balancer for IPv4 and IPV6 high             *
    *                  availability users                          *
    ****************************************************************
    * PROBLEM DESCRIPTION: When using the Load Balancer for IPv4   *
    *                      and IPv6 high availability function,    *
    *                      network traces will show ICMP errors.   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    ICMP errors are sent by the operating system for each high
    availability packet.
    

Problem conclusion

  • Code has been modified to open a socket on the UDP port to
    prevent the ICMP errors.
    
    Fix levels:
        9.0.0.6
        8.5.5.13
    This does not affect the Load Balancer for IPv4 only release.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI89698

  • Reported component name

    WS EDGE LB IPV4

  • Reported component ID

    5724H8812

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-11-02

  • Closed date

    2017-11-08

  • Last modified date

    2017-11-08

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

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

Fix information

  • Fixed component name

    WS EDGE LB IPV4

  • Fixed component ID

    5724H8812

Applicable component levels

  • R850 PSY

       UP

  • R900 PSY

       UP



Document information

More support for: WebSphere Application Server
Edge Component

Software version: 8.5

Reference #: PI89698

Modified date: 08 November 2017


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