GuysDoes anyoe knows about "IGMP v4"? and f you does any of Cisco switces support it?

Guys can anyone help me and till how to protect Catalyst 4500 operations against looping?the problem is that i have the STP enabled on the front ports of the Cat4500 which used to carry uplinks of edge switches (cisco and non-cisco), so whenever a lo...

Guys,can anyone help me to find a way to remove a specific entry from the ARP table of Catalyst 6500 and 4500?Please advise

Dears, As i'm preparing for CCIE routing/switching bootcamp, i appreciate if anyone help me find good Video Training as a preparation for the bootcamp appretiate your support Yours