IBM Z Hardware and Operating Systems Ideas Portal


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Status Future consideration
Workspace z/OS
Categories Communications Server
Created by Guest
Created on Jan 3, 2023

RELATED IDEAS

Provide more granular TCP statistical counters

I'd like to request that IBM add more granular counters for the TCP statistics "EPHEMERAL PORTS EXHAUSTED" value.

During a recent incident IBM pointed out that the single TCP stats ephemeral ports exhausted counter can have multiple incrementers: TCP, FTP PASSIVEDATAPORTS, GLOBALCONFIG EXPLICITBINDPORTRANGE, CINET INADDRANYPORT and INADDRANYCOUNT, and possibly others. We were unable to locate the cause(s) of the port exhaustion(s) even after reviewing operlog, syslogd, SMF119. Knowing where the port exhaustion occurred would greatly help the diagnostic process.


Idea priority Low

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