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Detect network bottlenecks.
Local Bridge
Network Control Protocol is uses to identify the Network layer protocol used in the packet
you can define vlan membership at the network switches. you can connect devices over a large area without causing traffic bottlenecks.
Network B -- WAN Network C -- LAN Network A -- LAN
Network troubleshooting refers to the process of trying to identify the problems that may be affecting a network. This may be referred to as diagnosis of the network.
So the network can correctly identify you, personalize settings for you, and allow you connection to the network (or internet).
to identify where a packet was lost or delayed on a network
To identify potential holes in network firewalls
no
A network address is like a street address; if you want to receive your mail from the post office then the postal worker needs a way to identify where you live. Networks are the same way; they need a way to identify each network and each device in a network to send and receive messages.
ping and traceroute are both valuable tools to identify connection failures on a network.