HP-UX SNAplus2 MS Programmer's Guide

Introduction to Management Services
SNA Management Services Support Levels
Chapter 1 21
SNA Management Services Support Levels
SNA defines the following levels of MS support. Each level corresponds
to a different generation of products that implement this support.
NMVT-level
An NMVT-level product transfers management
information by sending network management vector
transports (NMVTs) to, and receiving NMVTs from, a
host focal point over a session between the physical
unit (PU) in the node that supports the NMVT-level
product and the system services control point (SSCP)
at the host. This session is called a PU-SSCP session.
NetView Version 2, Release 1 or earlier provides
NMVT-level support.
Migration-level
A migration-level product transfers management
information by sending and receiving CP_MSUs
(Control Point Management Services Unit GDS
variables) over an LU-LU session between independent
type 6.2 logical units (LUs). A CP_MSU is a simple
GDS variable containing an MS major vector.
Migration-level focal points can receive alerts, but they
do not support other MS categories.
OS/400 is an example of a migration-level product.
MDS-level
An MDS(Multiple Domain Support)-level product
transfers management information by sending and
receiving MDS_MUs (MDS Message Unit GDS
variables) over LU type 6.2 sessions. An MDS_MU
consists of a header, with detailed MS routing and
correlation information, followed by a CP_MSU
containing an MS major vector. MDS-level products
can communicate with more than one focal point at the
same time, although they use only a single focal point
for a particular MS category (such as problem
management).