HCNA

Switches Switches are one of the most important network equipments of a computer network. It is the main device of...

Gratuitous ARP, is the ARP that is used to inform the network about IP to MAC Mappings after a change....

ARP (Address Resolution Protocol) is a Layer 2 Protocol. Layer 2 uses Physical addresses (MAC addresses) for the communication. Here,...

AAA Configuration is done basically in similar ways in different vendor equipments. But for specific vendors, the configuration commands are...

VRRP Overview VRRP (Virtual Router Redundancy Protocol) is a standard based First Hop Redundancy Protocol. It eliminates the single point...

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