Router# copy tftp: flash: Address or name of remote host [255.255.255.255]? 192.168.1.100 Source filename []? c2800nm-adventerprisek9-mz.152-1.T.bin Destination filename [c2800nm-adventerprisek9-mz.152-1.T.bin]? [Enter]
: This is the file extension indicating that it is a binary file, which in this context, is the IOS image file used for updating or restoring the firmware of a Cisco router. c2800nm+adventerprisek9+mz+152+1+t+bin
: This identifies the hardware platform. It is a "Mainline" (nm) software image for the Cisco 2800 Series Integrated Services Routers (such as the 2801, 2811, 2821, and 2851). adventerprisek9 : This refers to the Advanced Enterprise Services feature set. Router# copy tftp: flash: Address or name of