Switching

SVI Autostate

SVI Autostate

Switch Virtual Interfaces, or SVIs on Cisco IOS use a feature called autostate to determine the interface availability. By default an SVI will show an up/down (Status / Protocol) …

Using Discontiguous Wildcard Masks in ACLs

Using Discontiguous Wildcard Masks in ACLs

Unlike subnet masks, wildcard masks allow you to use discontiguous bits which enable you to match on a range of values. Using these within routing protocols is typically frowned …