This may sound like a stupid question but I am being forced to ask! Can the dedicated fast ethernet port on the 7304 NSE-150 be used as a normal router port or is it (as the name implies) for management only? If so what are the drawbacks?
It is as the name implies - management only.
Reference the configuration and installation guide (http://www.cisco.com/en/US/docs/routers/7300/install_and_upgrade/7304/7304_fru/7304_nse_icg/3967ov2.html) which states, in part:
"The NSE-150 has an RJ-45 media port that provides 10/100-Mbps connectivity. It is not used for regular traffic. It is used to connect to a network management station and for downloading images. You should not switch to or from this port."
Hope this helps. Please rate this post if it does.