Mike

I was composing this response before your posts appeared on the IBMTCP-L 
list.

> ... is anynet incorporated into z/os vtam like enterprise extender is? 

Two of the AnyNet components, "SNA over IP"[1] and "Sockets over SNA", 
*used* to be "incorporated" into VTAM (the Communications Server SNA 
component) prior to V1R8 - and unchanged since V1R2 - in the sense that you 
did not have to obtain a separate product in order to acquire the function.[2]

Note that simply saying AnyNet is ambiguous. The fact that you are also 
interested in Enterprise Extender indicates that it is AnyNet SNA over IP in 
which you are interested. The other AnyNet implementation which used to be 
supported by VTAM is AnyNet Sockets over SNA which was withdrawn at the 
same time as AnyNet SNA over IP and for which there is - a pause for a tear - 
no replacement.

AnyNet products are implementations of the Multiprotocol Transport 
Networking (MPTN) principle and there used to be quite a number where one 
protocol suite switched to another protocol suite in principle at the level of 
the transport layer of the ISO OSI model. Note that MPTN actually 
incorporates some RFCs.

I suppose AnyNet SNA over IP is "just like enterprise extender" since the 
VBUILD TYPE=TCP is available in the same way as the VBUILD TYPE=XCA 
followed by PORT MEDIUM=HPRIP can be coded in a VTAM major node 
definition.

There is a difference in that the AnyNet components were always described in 
separate manuals. See

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/Shelves/F1A1BK61

You seem to imply that z/OS V1R7 is your current level. This being so, you 
could have answered your first question from your installed VTAM.

Like Pat, I am somewhat puzzled by your terminology. You seem to have the 
idea that the distributed platforms are tied to z/OS in some manner other than 
that they both implement SNA. It is as if SNA were somehow a feature of 
z/OS that gets exported to distributed platforms in some way. I hope the 
IBM "suits'" insistence back in about 1995 that "if it's SNA, whatever the 
platform, it has to be a member of the 'Communications Server' family" hasn't 
confused you appreciation of the technical truth. The "Communications 
Server" family label makes some sort of technical sense for all the products so 
labeled ***with the very specific exception of the z/OS one*** because the 
same software house was and is still I believe responsible for them. See

http://www-01.ibm.com/software/network/commserver/library/

and try to ignore the "Communications Server for zOS and CS390" entry!

You also rather mistakenly emphasise the word "gateway". I expect 
by "gateway" you refer to the optional and, to my mind, generally unnecessary 
technique of having either LU type 2 (3270) or LU type 6.2 (APPC) data 
streams passed over a typically local IP network to the workstations rather 
than extending SNA to the workstations and using an APN Network Node 
server or a Branch Extender Node[3]. Why mix your protocols when you don't 
have to?

I guess this is all related to the other thread to which I have given you some 
responses. Much as Timothy Sipples suggested, you should just say what you 
***really*** want to do - without "prejudice".

Chris Mason

[1] I always drop the "TCP" because, in fact, "AnyNet over IP" also uses UDP 
port 397 (by default).

[2] FWIW I even remember that the CM/2 support for the two AnyNet 
components was shipped with VTAM when the function first became available.

[3] Your only option when you try to build an SNA network on "one-size-fits-
all" Cisco SNASw.

On Tue, 7 Jul 2009 16:03:10 -0500, Ward, Mike S <[email protected]> 
wrote:

>Hello all, is anynet incorporated into z/os vtam like enterprise
>extender is? Or is there any way to communicate with an SNA
>Gateway(Communications Server) from z/os 1.7 using the enterprise
>extender functions?
>
>Thanks.

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