Using RNR with XRF or VGR

RNR is not supported on a system configured with XRF. Attempting to activate RNR on an XRF-configured system produces a warning message indicating that execution will continue with RNR disabled. RNR can be used in conjunction with VGR; however, IMS support for RNR takes precedence over VGR support.

If a /START DC command is entered during an IMS restart, and RNR=NRNR, then the session is terminated and VGR, if active, performs the appropriate level of affinity and terminal status management. If a /START DC command is entered during an IMS restart, and RNR=ARNR, then the session is scheduled for reconnection and a new session with another IMS cannot be established by invoking VGR. If IMS is cold-started, then all active VTAM® sessions are terminated and all active VGR affinities and statuses are deleted.