IBM Version 4 manual SNA/Management Services Transport SNA/MS Transport APIs, Alert APIs

The	APPN	local topology		for	an APPN	node	consists	of the	following:
Ÿ	The	local	node
Ÿ	Adjacent		nodes (network		nodes,	end	nodes,	or virtual	nodes to which
	node	has	a direct	connection)

ŸTransmission groups from the local node to adjacent nodes

Both end nodes and network nodes can report local topology updates; how network topology updates can be reported only on a network node system

SNA/Management Services Transport (SNA/MS Transport) APIs

Systems Network Architecture Management Services Transport (SNA/MS Trans-

port) functions are used to support the sending and receiving of manage vices data between systems in an SNA network. The network can include AS/ systems, Operating System/2 and NetView licensed programs, and other pla that support the SNA/MS architecture.

The SNA/MS functions provided on the AS/400 system include:

Ÿ The transport of network management data in APPN networks

Ÿ The maintenance of node relationships for network management

The	APIs	allow	a	network	management	application			running on one system to	s
data to and receive data from						a	network management application running			o
another		system	in	an APPN	network. The		APIs	are	a callable interface tha
the	application		to be notified about asynchronous events, such as incom
by	way	of a	notification placed			on a		data	queue.

Some examples of IBM applications that use SNA/MS Transport APIs are:

ŸAlerts

ŸProblem reporting

Ÿ Remote problem analysis

ŸProgram temporary fix (PTF) ordering

In large networks, the number of

sessions needed to support the vario

management applications could become burdensome without session concen-

tration. SNA/MS Transport APIs reduce

the number of SNA LU 6.2 sessions

th

would

normally be

used to transmit

data. This

support multiplexes

or

tran

of

the network

management

data

from all

the

applications

in a network

no

domain

(network

node

and

attached

end

nodes)

on a single

session

to

ap

in

another

domain.

This means that data transmitted

from an end node is always sent to i

node server first. Then, the SNA/MS

Transport support on the network node

routes

the

data

to

its

proper

destination.

Alert APIs

The alert APIs let your				application create alerts, notify the OS/400 al
alerts that need to be				handled, and allow you to retrieve alerts and
generate		and send APIs		differ		from	ordinary	AS/400	alert	processing in
your	application		create	an	alert	at	any time without sending an alerta
to an	alertable		message	queue. (An			alertable	message queue is a mess
that	has	been	created	or	changed		with the	allow	alerts	(ALWALR) param
8-10System API Programming	V4R1