Hi, I have a new cisco 2970 switch. I need to turn off all non IP and non arp traffic. I have cdp turned off with no cdp run. I have spanning tree gone with no spanning-tree vlan 1 I still see this loopback protocol on each port every 10 seconds. How do I turn it off.? I tried the documented commands but they don't work. No spanning-tree loopguard disable spanning-tree loopguard disable no spanning-tree loopguard enable I tried a few other ones but can't stop the traffic. I am running ios 12.1 I used to always buy cisco but I am definitely seeing my support from them drop in quality. Has anyone else considered major migrations away from cisco products to either hatachi , HP, juniper , or whatever? Cisco works or used to work well when all the equipment is cisco and at the same IOS. But I can't maintain a pure cisco network at the same ios. Sorry for the rant but simple configs should be simple to do. Thanks in advance