z/OS MVS Using the Subsystem Interface
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NJE connection data header (JDJHNJEC)

z/OS MVS Using the Subsystem Interface
SA38-0679-00

Header for NJE connection data. Data for NJE connection is returned within this header. Total length of this data is accounted for by the prefix section which follows this header structure. The prefix section will also identify the type of data returned in this header. For NJE connection the data (section) type is JDTYNJEC. The following sections could be returned within this header:
Data for devices related to that NJE connection is chained to this header using JDJHDEVC pointer. Number of devices in the chain is in JDJHDEV#. Data returned for each related device will have its own unique header structure. Depending on the type of NJE connection, devices related to NJE connection include:
Note: This data is not returned if dominance check of SSI caller security label vs security label of the adjacent node fails (see JDJCDNSL).
Field Name
Description
JDJHEYE
Eye catcher
JDJHOHDR
Offset to first (prefix) section
JDJHDEV#
Number of related devices in the chain (see JDJHDEV8)
JDJHJPL8
Address of IAZJPLXI for this device
JDJHJPLX
31-bit part of a pointer
JDJHNEX8
Address of header of the next NJE connection
JDJHNEXT
31-bit part of the pointer
JDJHDEV8
Address of header of the first related device
JDJHDEVC
31-bit part of the pointer

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