On Sep 18, 2007, at 5:21 PM, Richard A Steenbergen wrote: > On Tue, Sep 18, 2007 at 04:28:59PM -0500, mack wrote: >> Does anyone know if or when Cisco will offer X2 optics with DWDM? >> The 3560-E and 3750-E as well as 6708-10GE have X2 optics but >> Cisco is only saying they are not currently available in DWDM. >> If this is to be the new form factor for Cisco I can't see them not >> offering DWDM. >> Does anyone have the scoop? > > X2 is not a popular format <snip> > Investing in X2 technology at this point in the game is a pretty > terrible > idea anyways.
I agree 100%. Don't waste your time with X2's. XFP is where it's at. XENPAK and X2 both use a 4-lane XAUI interface at the board interconnect. This probably made it easy for the catalyst people to reuse existing asic designs for the 6708 card and the 3750-E. XFP uses a serial interface (XFI) which requires the PHY to be moved back into the asic. So, it probably is taking them longer to bring a catalyst product to market w/ XFP's. I wouldn't bother with the 8-port 10G card. I would wait for a 16 port card w/ XFP's. I would also doubt that there will be many new products with XENPAK's or X2's, and you probably don't want to be stuck with them. Dale _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
