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What is the difference between a service-point address, a logical address and a physical address? Thank you.
Give me answer about networking related questions
Service point address : The transport layer header, includes a type of address called a service point address or port address, which make a data delivery from a specific process on one computer to a specific process on another computer.
The logical address: if a packet passes the network boundary, we need another address to differentiate the source and destination systems. The network layer adds a header, which indicates the logical address of the sender and receiver.
Physical address: if the frames are to be distributed to different systems on the network, the data link layer adds the header, which defines the source machine’s address and the destination machine’s address.
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henjobeth
Answered By
nrahad51
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#96529
Give me answer about networking related questions
Physical address is the local address of the node. It is used by the data ling layer and physical layer to deliver data from one node to another within the same network. It is the lowest level address. The size and format of the physical address of the physical address depends on the network.
The logical address defines the sender and receiver at the network layer and is used to deliver messages across multiple networks. This address is used by the network layer. This address is independent of the underlying physical networks.
Server point address specifies a piece of equipment connected in an ATM network.
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aonali21
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#96531
Give me answer about networking related questions
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These are the types of addressing. Each is related to a specific layer in TCP/IP architecture.
Physical Address
It is also called link address. It is the address of node as defined by LAN or WAN. It is the lowest level address. Size and format depend upon the network. For example, Ethernet uses 6-byte address imprinted on Network Interface Card (NIC). Local talk (Apple) uses 1-byte dynamic address. Ex: 07:04:03:01:2C:AB.
Logical Address (IP Address)
These are necessarily designed for universal communications that are independent of under laying physical networks. In this system each host has a unique address regardless of the physical network. Currently on internet the address is of 32 bits, but a new version of address which is of 128 bits is going to be introduced soon. No two publicly addressed and visible hosts on inter net can have same IP address. Ex: 196.25.226.20.
Service Point Address (Port address)
The physical address and IP address are necessary for a quantity of data to travel from source to destination host. Arriving at the destination is not the final objective. Nowadays computers run multiple processes on the same time, the address which specifies the data for a specific process is called service point address or port address. Port address in TCP/IP is 16 bit in length.
Physical address changes from hop to hop, but the logical and port addresses usually remain the same.
