Yes , it is.thanks

It does if you use the ".tar" file to install the image. In addition , you can use CNA ( ciso network assistant ) to configure the switch via GUIhttp://www.cisco.com/en/US/products/ps5931/index.html

No , you cannot configure sub-interfaces on 4948.thanksSalman.

somehow the port is looped . One reason you will see that is when a port goes to a hub and hub has 2 connections back to the switch.

that behavior is inherent in all 3k , 2k platforms , but does note exist in 4k and 6k. AFAIK , there is no way to disable it except running the switch in vtp client mode . That will not create the vlan . If the switch is vtp server or in transparent...