z/OS Communications Server: SNA Programming
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Examples of embedded network services request units

z/OS Communications Server: SNA Programming
SC27-3674-00

Examples of permissible types of embedded network services request units are described in Table 1.

SNA Formats does not include the formats for the NS-INITLOAD and NS-LOADSTAT RUs; these two RU formats are shown in Table 2 and Table 3.

Table 1. Examples of embedded network services request units
Request NS header PRID correlation
FORWARD  X'810810'  
NMVT  X'41038D'
Yes
This RU is unsolicited, or is a solicited request requiring a reply.
NS-IPL-FINAL  X'410245'
N/A
The RU does not contain a standard CNM header.
NS-IPL-INIT  X'410243'
N/A
The RU does not contain a standard CNM header.
NS-IPL-TEXT  X'410244'
N/A
The RU does not contain a standard CNM header.
NS-LOADSTAT  X'3F0234'
N/A
The RU does not contain a standard CMM header.
REQMS  X'410304'
Yes
The embedded reply is an RECFMS RU.
DELIVER  X'810812'  
NMVT  X'41038D'
Yes
This RU is unsolicited, or a solicited request requiring a reply.
NS-INITLOAD  X'3F0233'
N/A
The RU is sent unsolicited and does not contain a standard CNM header.
RECMS  X'010381'
N/A
This RU is sent unsolicited by the PU, and does not contain a standard CNM header.
RECFMS  X'410384'
Yes
This RU is unsolicited or is solicited by an embedded REQMS RU.
ROUTE-INOP  X'410289'
No
The RU is sent unsolicited to the CNM application program to provide information about failing routes within this network or another network. It does not contain a standard CNM header.
Table 2. Initiate load request (NS-INITLOAD) request unit format
Byte Bit Value Description
0   X'3F' Network services, access method RU
1   X'02' Configuration services
2   X'33' Request code
3–6     Reserved
7–8     Reserved
9     Load request state:
    X'00' Load requested during PU activation
    X'01' Load requested during PU activation
10–17     IPL load module name
Table 3. Load status request (NS-LOADSTAT) request unit format
Byte Bit Value Description
0   X'3F' Network services, access method RU
1   X'02' Configuration services
2   X'34' Request code
3–6     Reserved
7–8     Reserved
9     Load request state:
    X'00' Load requested during PU activation
    X'01' Load failed—unable to activate
10     Load status:
    X'00' Load successful
    X'01' Load failed—unable to process load request. Bytes 11–17 set to zero.
    X'02' Load failed during the load procedure. Bytes 11–17 contain additional information.
11–13     Request code of the failing NS RU
14–17     Sense data returned in the negative response for the failing NS RU.
Parent topic: Request unit (RU) formats

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