z/OS MVS Setting Up a Sysplex
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Outbound messages

z/OS MVS Setting Up a Sysplex
SA23-1399-00

For the outbound messages to a particular system if the sum of the storage for the CLASSDEF and the PATHOUTs is insufficient, the signal will be rejected. This is reported on the RMF™ XCF report as REQ REJECT for OUTBOUND requests. In general, any non-zero value in this field suggests some further investigation. The problem is generally resolved by increasing MAXMSG on the CLASSDEF or PATHOUT definition. See Figure 1 for an example.

Figure 1. Example: XCF Usage By System - Outbound Messages
                    XCF USAGE BY SYSTEM
-------------------------------------------------------------------
                                          REMOTE SYSTEMS
--------------------------------------------------------------------
                   OUTBOUND FROM SYSC
--------------------------------------------------------------------
                                                     ALL
TO       TRANSPORT  BUFFER        REQ              PATHS       REQ  
SYSTEM   CLASS      LENGTH        OUT             UNAVAIL   REJECT 

K004     DEFAULT       956    126,255   ...             0    1,391   
         DEF16K     16,316         28                   0        0
SYSA     DEFAULT       956     97,834                   0        0
         DEF16K     16,316      3,467                   0        0
                           ----------
TOTAL                         227,584

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