Subject: Preliminary SIG agenda

From: "Ralph Case" <[email-masked]>
Date: Thu, 24 Oct 96 08:50:09 EDT

Here's the list I have so far of architecture items to be
discussed at the upcoming AIW meeting.  As always, we can
add others if needed, just let me know what you think is
needed.

I look forward to seeing you in Raleigh.

CURRENT APPN ARCHITECTURE ITEMS
_______________________________

YEAR 2000 COMPLIANCE

We will discuss SNA Formats hits and product implications of two-digit
representations of years.  Changes to the interpretation of some fields are
proposed.

CORRECT DLUR REQDISCONT PROCESSING

When a DLUR currently receives a REQDISCONT request from a downstream PU
(DSPU), it converts the request into a REQDACTPU request and sends it to the
DLUS.  In addition, upon receipt of RSP(REQDACTPU) from the DLUS, DLUR
converts the REQDISCONT request into a positive RSP(REQDISCONT) and forwards
it to the dependent PU.

The proposal is documented in "abs8407.txt" and "arch8407d.psbin".  Approval
of this item is requested at the meeting.

INCLUDE ROUTE SELECTION (X'2B') CV ON +RSP(BIND) RU

DLUR architecture for reextending a +RSP(BIND) should be updated to reinsert
into the +RSP(BIND) a CV X'2B' if one was received on the BIND request.

The proposal is documented in "abs8418.txt" and "arch8418d.psbin".  Approval
of this item is requested at the meeting.

AUTO-ACTIVATION ENHANCEMENTS

This item updates CS architecture to more accurately reflect product
implementations of auto-activatable links.  Products do not bring up such
links and exchange XIDs in order to negotiate TG number and to get the link
into topology.  Instead, the links are inserted into topology based on
configured information.

Approval of this item is requested at the meeting.

QUIESCING CONNECTION NETWORK TGS

HPR Extensions for ATM Networks states that connection network TGs should be
marked as quiescing rather than nonoperational when the port's link
activation limit is reached or the port's upper reserved bandwidth threshold
is exceeded.  The base CS architecture needs to be changed so that the same
action is taken for connection network TGs for other link technologies.

Approval of this item is requested at the meeting.

LAN SIGNALLING INFORMATION IN RSCVS

This is a new proposal to minimize the number of bytes in an RSCV that
includes a connection network by eliminating unused signalling information.

This is a new proposal.

MAPPING LU AND PU NAMES BETWEEN VTAM AND TYPE 2.0 NODES

There is a proposal to add a new system definition parameter to VTAM to allow
LU and PU names to be sent to DLUR-attached devices.

UPDATES TO TOPOLOGY AWARENESS OF CP-CP SESSIONS

Due to some confusion about the interpretation of the 'CP-CP Session support
and status' field in the TG Characteristics (X'47') Control Vector, a
clarification has been made to the formats.  The file, "arch8419.psbin"
contains these changes.

This is a clarification.

Ralph Case                    [email-masked]    (919)254-1882
AIW APPN Reference SIG Chair
IBM Networking

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From: Brian Jewell <[email-masked]>
Date: Thu, 24 Oct 1996 08:21:27 -0700 (PDT)

Ralph,

Re: the Agenda...

> LU and PU names to be sent to DLUR-attached devices.

This issue was first raised a while ago and I've forgotten some of the
specifics about what was proposed. But I do think the scope of it went
beyond just dealing with the problem for DLURs. The original intent was
to provide a means for passing PU/LU names in traditional SNA networks,
as well.

Do other members share this opinion?

-Thanks

Brian Jewell
3Com, Inc.