Fixes are available
Fix packs for DataPower B2B Appliance version 6.0
Fix packs for DataPower Integration Appliance version 6.0
Fix packs for DataPower Service Gateway version 6.0
Fix packs for DataPower Service Gateway version 6.0.1
Fix packs for DataPower B2B Appliance version 6.0.1
Fix packs for DataPower Integration Appliance version 6.0.1
Fix packs for DataPower Service Gateway version 7.0
Fix packs for DataPower B2B Appliance version 7.0
Fix packs for DataPower Integration Appliance version 7.0
Fix packs for DataPower Gateway version 7.1
APAR status
Closed as program error.
Error description
When services using Access Control Lists are deployed in a network environment with IP packet fragmentation, packets might be dropped unexpectedly, which might result in broken TCP connections. This is more likely to manifest with longer transfers, for example, when using the appliance for file transfer.
Local fix
Disable/remove ACL.
Problem summary
Affected are DataPower configurations with services using several distinct Access Control Lists to restrict the range of client IP addresses. In network environment with frequent or deterministic IP packet fragmentation, parts of fragmented packets might be unexpectedly dropped. The packet loss might result in network delays or TCP connection breakdown.
Problem conclusion
Fix is available in 6.0.0.15, 6.0.1.11, 7.0.0.8 and 7.1.0.5. For a list of the latest fix packs available, please see: http://www-01.ibm.com/support/docview.wss?uid=swg21237631
Temporary fix
Comments
APAR Information
APAR number
IT07956
Reported component name
DTAPWR B2B APL
Reported component ID
DP905XB62
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-03-30
Closed date
2015-06-15
Last modified date
2015-06-29
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
DTAPWR B2B APL
Fixed component ID
DP905XB62
Applicable component levels
R600 PSN
UP
R601 PSN
UP
R700 PSN
UP
R710 PSN
UP
Document Information
Modified date:
26 September 2021