You can stop Shared Memory Communications - Direct
Memory Access
(SMC-D) at a stack-wide
level.
Procedure
- Modify the GLOBALCONFIG statement in the TCP/IP profile data set to include the NOSMCD
parameter.
- Issue the VARY TCPIP,,OBEYFILE,profile_data_set command.
Results
The TCP/IP stack does not immediately stop all existing
SMC-D processing after the VARY
TCPIP,,OBEYFILE command is processed. Existing TCP connections that are using existing
SMC-D links are unaffected and continue to
use
SMC-D communications until
SMC-D links end or are stopped.
However, no new
SMC-D links are
created, and TCP connections that are established after this point do not use the existing
SMC-D links.
What to do next
When you restart
SMC-D
after a stop, the previous SMCD parameter settings are used if they are not explicitly configured in
the OBEYFILE data set. For more information about
dynamically
updating the GLOBALCONFIG SMCD parameter, see
z/OS Communications Server: IP Configuration Reference.
