[c-nsp] Does 6500 10 GigE currently support WAN-PHY?

lists at hojmark.org lists at hojmark.org
Sun Jul 3 06:55:02 EDT 2005


> WAN PHY is OC192 framed, can thus be carried over legacy OC192
> DWDM infrastructure (DWDM only, not SONET due to clocking being
> less than SONET grade accuracy).
> 
> So if your DWDM system doesn't have 10GE LAN PHY capability
> (10.3 GHz 64b/66b coding) then WAN PHY with its OC192
> compatible coding (9.5GHz) is very interesting.

Thanks.

Do you (or anyone else) know why IEEE didn't just settle on the
OC192 coding, then? Because it's tiny bit slower (9,95 vs 10.31)?
Or is it maybe more expensive to do because of the WAN sublayer?

-A



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