Subject: Network Name in ACTLU

From: "jim (j.) cobban" <[email-masked]>
Date: Wed, 22 Nov 1995 16:54:00 -0500

Over on the SNA NAU MIB mailer a discussion arose of the difficulties of
correlating management information about resources in the MIB with the
corresponding resources in VTAM.  There is an LU name in the NAU MIB, but it
is just a locally defined string which is not guaranteed to be the same as
the name in VTAM.  So the MIB fell back on using the LOCADDR as the golden
screw.  However that is local to a particular PU, so you have only gone one
step further back because you have no obvious way to tie together a PU as
known in the MIB to a PU as known to VTAM.

However at least in some cases the ACTLU and ACTPU carry the names as known
to VTAM.  A network name vector (0E) was added to the ACTLU quite a few years
ago, but was not documented in SNA Formats, only in its licensed counterpart.
I think the first time I saw it documented was when DDDLU was introduced,
although I believe that I actually saw it in a trace prior to that.  The
network name vector was added to the ACTPU going to DLUR.

Could IBM please document in exactly what circumstances the network name
vector is carried on the ACTLU and ACTPU.  If the vector is not routinely
sent by the current release of VTAM, for example out of fear that a
brain-dead PU 2 will fail to ignore it, can we amend the architecture so that
a PU 2 can indicate support for the vector?

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From: Dave Finnie <[email-masked]>
Date: Thu, 23 Nov 1995 13:21:08 +1100

Jim,

> a PU 2 can indicate support for the vector?

I would support this. I think it is a good idea.

Dave