how does OS know when tcp port reserved? -- MIDRANGE-L

Subject: how does OS know when tcp port reserved?
From: J Franz <franz400@xxxxxxx>
Date: Mon, 25 Nov 2013 07:59:49 -0800 (PST)
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Our site is using Content Manager (an older but still supported product).
It requires port 31015
We found this morning after an ipl the http ADMIN server job using 31015 (and Content Manager prestart job would not start).
Is there a maintenance to reserved ports?
This is V6R1 and not on current cume (not my control), but also google not finding a ptf
This has run for many years so assume it was a random selection of a port by the Admin server under ipv6.

Jim Franz

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Follow-Ups:

Re: how does OS know when tcp port reserved? , bryan dietz
Re: how does OS know when tcp port reserved? , rob

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