Output Discard Percentage is the percentage of IP segments that this TCP/IP
address space sent to the network that were undeliverable and discarded during the
most recent sampling interval. Output discards are datagrams that were discarded,
including no route found errors and fragmentation failures.
Often this is an indication that more buffer space must be
allocated for the interface. Excessive discards waste network resources.
Analyze the errors reported in the IP Statistics, Interfaces, and OSA
workspaces to further isolate the source of the problem. A trace
might be required to isolate the source of the discards. Discard reason
codes (found in IBM z/OS Communications Server: IP and SNA Codes) may be used
to filter the trace data to only show packets pertaining to issues discovered in the
IP statistics and interface investigation. When the offending interface or application or both
has been identified, see the IBM z/OS Communications Server: IP Diagnosis Guide
to take corrective action.
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