SMF records

Several SMF 119 records include information about SMC-R in general and specifics about IBM 10 GbE RoCE Express interfaces. In addition, SMF TYPE 119 records that are specific to SMC-R processing are available:

• The SMC-R Link State Start (subtype 42) and SMC-R Link State End (subtype 43) SMF records notify the user when an SMC-R link is activated or deactivated. These SMF records serve a similar purpose for SMC-R links as the TCP Connection Start and TCP Connection End records serve for TCP connections.
• The SMC-R Link Group Statistics SMF record (subtype 41) provides statistics for all active SMC-R link groups on an interval basis. This SMF record includes information pertinent to both SMC-R link groups and the individual SMC-R links that comprise the link group.
• The RNIC Interface Statistics SMF record (subtype 44) provides interface statistics for 10 GbE RoCE Express interfaces. This SMF record serves the same purpose for 10 GbE RoCE Express interfaces that the Interface Statistics SMF record (subtype 6) serves for other interfaces.

For more information about type 119 SMF records, see z/OS Communications Server: IP Programmer's Guide and Reference.