EE connection percent packets retransmitted is the percentage of the HPR network layer packets retransmitted compared to the number of packets sent over this EE connection during the last sample interval. Retransmissions occur when a HPR packet is sent but is not acknowledged by the receiving host within a specified timeout period. A high percentage of packets are being retransmitted for the specified enterprise extender link. The probable cause of a high number of packets being retransmitted is network congestion or constrained CPU in the remote z/OS Communications Server address space.
To determine this, the percent of packets retransmitted metric in the EE connections table is used. This situation occurs if the value for the percent of packets retransmitted is greater than 5% for 2 consecutive intervals.
Possible procedures to isolate and correct the problem include:
By default, this situation does not start automatically and must be manually started to run.