APAR status
Closed as canceled.
Error description
TPINFO VTAMINFO 569511701 R10A R160 R170 R180 R190 R1A0 R1B0 R1C0 R1D0 R210 R220 If a PIU is too large to be passed from one PU Type4/5 to another PU Type4/5, an exception request (EXR) with sense 800A0000 may be generated. The SNA Network Product Formats (LY43-0081) manual describes this process in chapter 4 (RH's) under the heading 'EXCEPTION REQUEST'. This section lists the rules for building the EXR - it will contain sense 800A0000 along with up to 3 bytes of RU. Note that a PIU contains up to 26 bytes of TH, a possible 3 byte RH and possible RU data. The total PIU size cannot be greater than the values calculated below. For VTAM/NCP nodes in the session path, the following definition values should be checked for each configuration used: - VTAM to channel-attached NCP: VTAM will take the smaller of: - MAXDATA on the PCCU statement (or LINE/PU statement for channel-attachment NCP) or, - The value sent in the XID for max PIU size by the NCP. This will be: the product of BFRS (from the BUILD statement) and TRANSFR (from the channel adapter LINE statement for 3745 or 3720 with V5 NCP; or from the BUILD statement for other NCPs). - Channel-attached NCP to VTAM: The product of MAXBFRU from the HOST statement (or from the LINE statement for channel-attachment NCP) and IOBUF size (from VTAM start options). - VTAM to VTAM through CTCA (CTC): - If both VTAM's have the CTCA enhancement (V3R2 and above include the CTCA enhancement) - product of MAXBFRU (from CTCA LINE statement) and 4K. Note: The first page of buffer storage has prefix/ header info that will decrease available buffer space by 24 bytes. - If one or both VTAM's does not have the CTCA enhancement - product of MAXBFRU (LINE statement) and IOBUF size from VTAM start options (LFBUF size for pre-V4R2 VSE VTAM. - NCP to link-attached NCP: Product of TRANSFR (LINE statement) and BFRS (BUILD statement). - NCP to link-attached VTAM: Product of MAXBFRU (CA LINE statement) and IOBUF size from VTAM start options for VM VTAM (LFBUF size for VSE VTAM). ------- NOTE: The definitions of ALL PU TYPE4/5's on the session PATH must be checked. Any PU4/5 can change the too-long- PIU into an 800A0000 exception request. The 800A0000 will flow to the destination LU. Some LU's will return the sense in a response. Other LU's will UNBIND - some will include the 800A0000 in the UNBIND sense data - others will not. ------- ADDITIONAL KEYWORDS: 800A, RPL RETURN CODE 0403 0404
Local fix
Problem summary
Problem conclusion
Temporary fix
Comments
INFO APAR.
APAR Information
APAR number
II03990
Reported component name
V2 LIB INFO ITE
Reported component ID
INFOV2LIB
Reported release
001
Status
CLOSED CAN
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
1989-08-19
Closed date
1989-08-19
Last modified date
2015-12-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Applicable component levels
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Document Information
Modified date:
13 December 2020