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specified in the COUNT operand is not exceeded before this time interval
elapses, the error count is reset to 0. Specify “units” as SEC, MIN, or HRS. The
maximum values for “interval” are as follows: (86400,SEC), (1440,MIN), or
(24,HRS). This operand is optional, and the default is set to (7,MIN).
DSECTs
The following DSECTs are provided:
Node Error Table Header: This contains the table name and common information
relevant for all the node error blocks (NEBs) in the table.
DFHNETH DSECT
NETHNAM DS CL8 Table name
NETHNBN DS H Number of NEBs in table
NETHNBL DS H Length of NEBs in table
NETHTIM DS PL8 Error count time interval
NETHECT DS H Error count threshold
NETHFLG DS X Flag byte
NETHINI EQU X’01’ Table initialized
DS X Reserved
NETHFNB DS 0F First NEB
Node Error Block: The table contains node error blocks that are used for recording
error information for individual nodes. These can be permanently assigned to
specific nodes or dynamically assigned at the request of error processors.
DFHNETB DSECT
NEBNAM DS CL4 Node name
NEBFLG DS X Flag byte
NEBPERM EQU X’01’ Permanently assigned NEB
DS XL3 Reserved
NEBFESB DS 0X First NEB
Error Status Block: The NEBs can contain error status blocks. These are reserved
for specific error processors and are identified by the corresponding error group
index. An ESB can have a format defined by you, or can have a standard format
suitable for counting errors over a fixed time interval.
DFHNETE DSECT
ESBEGI DS X Error group index
ESBFLG DS X Flag byte
ESBSTAN EQU X’01’ Standard format ESB
ESBTTE EQU X’02’ Time threshold exceeded
ESBCTE EQU X’04’ Count threshold exceeded
ESBSLEN DS XL2 Status area length
ESBHLEN EQU *-DFHNETE ESB header length
ESBSTAT DS 0X Status area
The following fields apply to the standard format:
ESBTIM DS PL8 Time stamp
ESBEC DS XL2 Error count
Common Subroutine Vector Table: The CSVT provides error processors with
addressability to the common subroutines. The error processor link register gives
addressability to the CSVT and so the first section of the DSECT overlies the code
required to branch around the actual table.
DFHNEPC DSECT
DS F Load instruction
DS F Branch instruction
CSVTNEP DS A Node error program base address
504 Customization Guide