Um, I think I missed the point of the question with my earlier post. Thanks to Ron and Tom for providing the actual answer.
An important characteristic of DWDM is that it's 'content unaware'. It doesn't know the nature of the data being transmitted any more than the pipes in your house know about water quality. Traditional channel extenders are all about mainframe I/O--up to and including simulation of ESCON switches. P.S. Although my cousin refuses to believe that she was hoodwinked by Pink Floyd, the moon has no dark side. I might as well try to convince her that people are descended from monkeys. Science schmience. Ron Hawkins <[EMAIL PROTECTED]> Sent by: IBM Mainframe Discussion List <[email protected]> 02/01/2007 07:55 PM Please respond to IBM Mainframe Discussion List <[email protected]> To [email protected] cc Subject Re: Cascaded FICON and HCD Dark Fibre - Fibre between two sites that is not shared DWDM=Dense Wave Division Multiplexor WDM turns a dark fibre into many dark fibres by using slightly different wavelengths for each fibre connected. "Think of the cover of Dark Side of the Moon". > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Rick Fochtman > Sent: Friday, 2 February 2007 10:21 AM > To: [email protected] > Subject: Re: Cascaded FICON and HCD > > ----------------------------<snip>--------------------------- > The short answer is Yes, you can do it. FICON is so fast that you should > not have trouble with 12 drives--assuming that distance is not a > problem. I don't know what the native limitations are, but we use DWDM > to 120 KM. > > Actually in the 'olden days' of ESCON, channel extender products > provided a similar capability, but the pathing was not known to MVS. > FICON lets it all hang out. > --------------------------<unsnip>-------------------------- > Pardon me; my education is lacking. > > DWDM ?? "Dark fiber" ?? > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
