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This Concept Map, created with IHMC CmapTools, has information related to: chp19, Closed-form computation:The protocol address assigned to a computer is chosen carefully so the computer's hardware address can be computed from the protocol address using the basic boolean and arithmethic operations. ???? When a computer connects to a network that uses configurable addressing, the local network administrator must choose a hardware address as well as an IP address.The two values can be chosen to make address resolution trivial., Binding Protocol Addresses(ARP) 19.4 Address Resolution Techniques Message exchange: Computer exchange messages across a network to resolve an address. One computer sends a message that requests an address binding, and another computer sends a reply that contains the requested infomation., Binding Protocol Addresses(ARP) 19.2 Protocol Address and Packet Delivery Protocol addresses are abstractions provided by software; physical network hardware does not know how to locate a computer from its protocol address.The protocol address of the next hop must be translated to an equivalent hardware address before a packet can be sent., Message exchange: Computer exchange messages across a network to resolve an address. One computer sends a message that requests an address binding, and another computer sends a reply that contains the requested infomation. Designs The second design, no special address resolution servers are needed.Instead, each computer on the network participates in address resolution by agreeing to answer resolution requests for its address., Binding Protocol Addresses(ARP) Address Resolution Protocol, Address Resolution Protocol Messages Format:Although the ARP message format is sufficiently general to allow arbitrary protocol and hardware addresses.ARP is almost always used to bind a 32-bit IP address to a 48-bit Ethernet address., Address Resolution Protocol two basic message types A response, Message exchange: Computer exchange messages across a network to resolve an address. One computer sends a message that requests an address binding, and another computer sends a reply that contains the requested infomation. advantages Centralization, Message exchange: Computer exchange messages across a network to resolve an address. One computer sends a message that requests an address binding, and another computer sends a reply that contains the requested infomation. Designs In the first design, a network includes one or more servers that are assigned the task of answering address resolution request., Binding Protocol Addresses(ARP) 19.4 Address Resolution Techniques Table Look-up: Bindings or mapping are stored in a table in memory, which the software searches when it needs to resolve an address, Binding Protocol Addresses(ARP) 19.4 Address Resolution Techniques Closed-form computation:The protocol address assigned to a computer is chosen carefully so the computer's hardware address can be computed from the protocol address using the basic boolean and arithmethic operations., Address Resolution Protocol Messages Delivery: The ARP standard specifies exactly how ARP messages should be sent across a network., Binding Protocol Addresses(ARP) 19.3 Address Resolution Mapping between a protocol address and a hardware address is called address resolution. A host or router uses address resolution when it needs to send a packet to another computer on the same physical network.A computer never resolves the address of a computer that attaches to a remote network., Address Resolution Protocol two basic message types A request