Chuckie seemed intrigued by the idea of ISFC over TCP/IP when I
suggested it in this list some time ago.

Regards, 
Richard Schuh 


-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of David Boyes
Sent: Wednesday, October 10, 2007 9:20 AM
To: [email protected]
Subject: Re: Defining virtual CTCAs

>       In theory, I see no reason why TCP couldn't be the medium, but
> IUCV doesn't support that type of connection.

Yeah, then AVS or TSAF are probably your only other options. There's a
nice market niche there for someone to create an IP-based 3088-like
device. It'd be hard, but very, very useful. 

Just thinking out loud, you could do a RTSP-based implementation that
would provide the real-time transport component (CTC response is not all
that different from isochronous voice traffic, so you could probably
borrow some ideas from that, and RTSP lends itself nicely to multistream
processing (so you could do multiple subchannels over the same
connection). 

The hard part would be the actual channel interfaces at the mainframe
end, although if you assume it's only for 2nd level systems, you could
probably do something useful with a VCTC driver in a Linux guest. 

-- db

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