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VTAM abend due to bad RUPE pointer in Register 4. Register 4 is loaded with ACDCRUPE from ACDEB. The ACDCRUPE field is overlaid with data x'00004800'.

z/OS Communications Server R170, R180, R190, and R1A0 are shipped with support for Segmentation Offload. z/OS Communications Server R160 requires PK02490 and OA11148 for this new function. In all cases, OSA-Express2 or OSA-Express3 cards are required to enable segmentation offload.

The DISPLAY TCPIP,tnproc,TELNET,STOR command is issued to track storage usage by the TN3270 Telnet server when running as a stand-alone address space. After an upgrade to z/OS 1.10 or above, the attempt fails with the following message:[<xmp> EZZ6048I TELNET DISPLAY COMMAND FAILED WITH RCODE 803F</xmp>]

There is a change in z/OS 1.9 which will affect any customer applications that use a custom listener transaction through the CICS Socket API. The code that locates the Listener Control Area (LCA) for the transaction will at least need to be recompiled using the updated EZACICA macro. If the transaction is deployed to run on multiple z/OS releases, additional code will need to be added to support both. Symptoms that can occur in applications that have not been updated include: [<ul><li>Listene

In following recommendations to disable the Segmentation Offload (OSA Large Send) feature, the [<code>MODIFY tcpipproc,NOSEGOFFLOAD</code>] command is being used. However, that command is being rejected with the following message:[<xmp> EZZ3250I THE MODIFY COMMAND IS NOT SUPPORTED.</xmp>]Subsequent examination of the [<code>NETSTAT DEVLINKS</code>] report shows that Segmentation Offload is still enabled.

IBM Education Assistant has recently published new multimedia educational content for additional IBM products.

After migrating to z/OS 1.5 or later, some DVIPA addresses may no longer be advertised by OMPROUTE even though the same DVIPA and OMPROUTE definitions worked correctly in a previous release. You will see the following message, where xx.xx.xx.xx is a DVIPA address, in syslogd when bringing up OMPROUTE: "EZZ7871I No matching interface statements for xx.xx.xx.xx" Additional symptoms include: - outbound connections hanging in SYNSENT - failing ping to DVIPA addresses.

The IBM Software Support Toolbar is a stand-alone application that allows you to easily search IBM.com for all types of software support content plus organizes the major areas of not only Software support, but the individual brand support sites into a concise application. Best of all, as IBM.com changes, your toolbar will change too - with automatic updates that keep the best of IBM.com always a click away!

When attempting to APPLY PTF UK09087, the following messages are generated by SMP/E: [<xmp>GIM41201S ** SMP/E CANNOT DETERMINE THE RELATIONSHIPS BETWEEN THE FOLLOWING SYSMODS: GIM41301I SYSMOD=UK09087 FMID=HIP6170 PRE=UK04385,UK04436,UK04501,UK05346,UK05518,UK06146,UK08282. GIM41301I SYSMOD=UK08282 FMID=HIP6170 PRE=UK08008. GIM41301I SYSMOD=UK08008 FMID=HIP6170 PRE=UK07789. GIM41301I SYSMOD=UK07789 FMID=HIP6170 PRE=UK05518,UK06734. GIM4

LU to LU sessions can fail with z/OS Communications Server 1.7 using Enterprise Extender to a Cisco router or a platform other than z/OS. The following message is displayed: IST1411I INOP GENERATED for IST1430I REASON FOR INOP is XID ERROR IST663I AM RESUME REQUEST FAILED SENSE=08010000