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The most simplest answer is that, the network layer routes data beyond the LAN boundary and it ues routing table with IP addresses. This the layer that your ROUTERfuntions
Wiki User
∙ 15y ago
Wiki User
∙ 12y agothere are two basic functions of network layer:
1. logical adressing
2. routing
logical adressing
when it is required to send the data packet from one network to another network then there is need of logical addressing .It helps to distinguish source and destination systems.Network layer adds header to data coming from upper layers and include logical address of sender and receiver.
routing
when independent networks or links connected together to create internetwork the internetworking devices(router) route packets to their final destination.
one of the function of network layer is to define this route
Wiki User
∙ 12y agoNetwork vs. Internet—
— —Like all the other OSI Layers, the network layer provides both connectionless and connection-oriented services.
— —As for the TCP/IP architecture, the internet layer is exclusively connectionless
Internet (IP) Addresses
— The lnternet network address is more commonly called the "IP address." It consists of 32 bits, some of which are allocated to a high-order network-number part and the remainder of which are allocated to a low-order host-number part.
— OSI Network Layer Addressing
— ISO/IEC and CCITT jointly administer the global network addressing domain. The initial hierarchical decomposition of the NSAP address is defined by (ISO/IEC 8348).
— Data link / Physical vs. Network Interface
— These 2 layers of the OSI correspond directly to the Network Interface layer of the TCP/IP model.
— Majority of the time, the lower layers below the Interface or Network layer of the TCP/IP model are seldom or rarely discussed. The TCP/IP model does nothing but to high light the fact the host has to connect to the network using some protocol so it can send IP packets over it. Because the protocol used is not defines, it will vary from host to host and network to network
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Which layer is absent in broadcast network?
network layer
Which particular layer of OSI model is not required if two devices communicate at the same network?
In this situation Network Layer may not be required. Data Link Layer can handle communication process. If two devices are communicating from different networks then Network Layer a is must. In this situation Data Link Layer is not enough for completing the communication process as it lacks Routing ability which is the primary function of Network Layer.
4 basic function of datalink layer?
error control and recovery flow control ppp(point to point protocol transfering from physical layer to network entities
Explain the principal responsibility of the network layer and data link layer in a Wide Area Network in detail?
the network layer is the same as the data link layer, they do the same thing. that is that they communicat with the network to send packets of data...
Which layer of the OSI model encapsulates Network layer pockets?
the network layer --> check your question. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ That is totally not the right answer, how about you actually read the book for the course. It is the data link layer that does encapsulation. I agree - its the Data Link Layer which encapsulates the Network layer...NOT the Network Layer.
In which OSI layer does congestion occurs?
congestion is Traffic in excess of network capacity. it occurs network layer and it is one of the function of network layer.
Logical addressing and routing function at which layer of the OSI model?
Networking layer of the OSI model
What TCP IP layer does a MAC address function?
Network Interface Layer
In a three-layer hierarchical network design which distribution layer function delineates broadcast domains?
routing between VLANs
Name three layers of the OSI standard and describe their function?
The three layers of the OSI standard are application layer, transportation and Network layer. Network layer provides the electrical and mechanical interface to network medium, network layer handles routing and forwarding of data. The transport layer ensures data is successfully sent and received between two nodes..
What is main function is to examine packetes and determine where to direct them based on their Network layer addressing information?
This is the main function of a router.
Which particular layer of OSI model is not required if two devices communicate at the same network?
In this situation Network Layer may not be required. Data Link Layer can handle communication process. If two devices are communicating from different networks then Network Layer a is must. In this situation Data Link Layer is not enough for completing the communication process as it lacks Routing ability which is the primary function of Network Layer.
Which layer is absent in broadcast network?
network layer
What is the function of the distribution layer in a campus network?
It distributes temporary IP addresses to each node.
What are the main function the internet layer?
The "Internet" layer in the TCP/IP model more or less corresponds to the "Network" layer (layer 3) of the OSI model. Both have the task of connecting different networks, independently on the type of layer-2 network; and of providing addresses to every machine on the Internet.
Which network layer protocol is responsible for routing packets on the network?
The network layer is the layer that is responsible for routing packets on the network. This is the layer in which Internet protocol operates. In the seven layer OSI model, the network layer is the third layer from the bottom.
What layer programs access the network?
Network Layer
