[c-nsp] possible to operate WS-X4908-10GE in line-rate mode?

[Andy Litzinger]

does anyone know if it's possible to use the WS-X4908-10GE in a 4900M so that it runs line rate when using only 4 of the 8 ports?  Usually this means using certain ports (like 1,3,5,7) and sometimes can be protected by turning off oversubscription via the config.

I'm not finding much info on cisco.com or in the archives of this list.

thanks!
-andy