Give me answer about networking related questions

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What is the difference between a service-point address, a logical address and a physical address? Thank you.

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Answered By 5 points N/A #96527

Give me answer about networking related questions

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  • Physical Addressing
  1. Frames need to be transmitted to different systems on a network;
  2. Data Link layer adds a HEADER to Frame;
  3. Header defines the physical address of sender(Source address) and/or receiver address (Destination address);
  4. If frame is intended for a device outside the network, the receiver address is the address of the device that connects one network to the other.
  • Logical Addressing
  1. Physical addressing implemented by Data link layer handles addressing problem locally;
  2. If a packet is going from one network to another, we need another addressing system to help distinguish source & destination systems;
  3. Network layer adds Header to the data coming from upper layers that among other things include LOGICAL ADDRESS of the sender and receiver.
  • Service Point Addressing
  1. Computers run several programs at the same time ;
  2. Source-to-Destination delivery means delivery not only from only from one computer to the other but also from a specific process on one computer to a specific process on the other;
  3. Transport layer header includes a type of address called Service Point Address or PORT Address ;
  4. Network layer each packet to the correct computer while Transport layer gets entire message to the correct process on that computer.
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Answered By 0 points N/A #96528

Give me answer about networking related questions

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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

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Answered By 5 points N/A #96529

Give me answer about networking related questions

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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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Answered By 0 points N/A #96530

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Network service point address, is the address translated from the Network service access point. Network service access point is an address that consists  up to 20 octets, that identify a computer or a network connected to an ATM (Asynchronous Transfer Mode) network.

In networking, logical address is the IP address, assigned by the network administrator to any active network device to identify it within the network. If it is IP version 4 the address consists of 32 bits (4 octets). If it is IP version 6, the address consists of 128 bits or 16 octets.

The Physical address in networking means the Mac address assigned by the manufacturer, on the network interface cards of all networking devices. The Mac address is unique and consists of 48 bits.

 

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Answered By 0 points N/A #96531

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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.

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