Network Protocols link

• Network protocols are the underlying technology which defines how a sender can package and format a message to be sent across a network to a destination

• network protocols are simply the rules which descripts how devices will format and addressing information , similiary to sending a letter vua local postal services

• for each protocol there is usually an associate logical network port number

• a port number is simply a doorway which is used to allow either inbound or outbound trrafic from a system

Network port Ranges link