I should have mentioned that I "think" the sequence was this:
1) POR (which like you say, must have loaded microcode into the OSA's)
2) Manually enter OSA IP addresses and LU's for ICC into the HMC
3) Test those IP addresses - no connection, no response
4) POR again
5) Hey, ICC works now
Now it turns out there were remote network admins who were claiming the
problem is not in their network, while still looking at the errors of
step 3. So who knows, they may have done something to enable ports or
whatever and not told us. Lots of cooks in the kitchen at that point.
If the problem would have continued, I planned a test that I've never
tried before on an OSA card: What would happen if I switched the IP
address of my laptop to the same range as the OSA IP setting, and
plugged my laptop directly into the copper OSA port? Then depending on
the result of a TN3270 connection test I could point a finger at either
the network or the OSA card.
On 1/17/2019 1:37 PM, Jesse 1 Robinson wrote:
-- An OSA needs to be loaded with updated microcode. Either offline/online
bounce or POR. Our console OSAs are well defined with symmetrical redundancy.
It takes a while to work through the procedure, but it's very doable. The
non-console OSAs are a menagerie of who knows what. It's easier to POR to catch
them all at once.
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Tom Brennan
Sent: Thursday, January 17, 2019 8:07 AM
To: [email protected]
Subject: (External):Re: The WHY of the POR
Last year I was watching the install of a new z14-ZR1 and the CE couldn't get
the ICC consoles to work until he did a POR *after* the IP/LU settings were in
place. I thought this was rather odd. Most likely there were dynamic ways
around the problem, but when there's nothing running on a machine yet, the
easiest is to try a POR.
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