Alter channel page https://www.ibm.com/support/knowledgecenter/SSFKSJ_7.5.0/com.ibm.mq.ref.adm.doc/q085170_.htm shows that I can use Disconnect interval (DISCINT) in server connection channel alter command, however I get error message which claims that it can only be used for server or sender channel types, but not for server connection channel types.
Maybe MQ command level is too low for DISCINT attribute? How can I check that?
Operating System is Linux for that particular workgroup server...
This knowledge center page for MQ v 7.0.1 indicates that alter chl DISCINT is only valid on zOS.
Also, this page says: This attribute is valid for channel types Server connection (z/OS® only)
Maybe you are using an older version of MQ? There are many different ways to check your MQ version - from the command line try dspmqver.