Network layer is layer three of OSI Model. Network layer adds support of connecting multiple networks with one another. Network layer uses its own distinctive addressing theme for differentiating networks and hosts inside that network. net widespread geographics is feasible solely owing to network layer and its addressing theme. Network Layer offers services to higher layer that is Transport Layer and Layer a pair of electric circuit Layer provide services to Network Layer. normally layer three offer following services:
Connectionless Communication (Connection-oriented at higher than layers)
Host Addressing
Message Forwarding (Inter-network communication)
In this article we'll study concerning all the functions of network layer very well with examples and the way communication is completed at network layer. For this you want to have understanding however layer a pair of network works, for this, please refer - summary of Layer a pair of Networks and Communication.
Host Addressing
For purpose of addressing network layer uses a particular quite addressing theme known as science Address (Logical Address). science address consists of thirty two binary bits. Its’ written in decimal kind exploitation four octets (1 octet is of eight bits) (32 / eight = 4). Example of science address version four – 192.168.5.10. science address contains 2 half in them – Network half and Host half. Host half outlines distinctive address of host and network half define network of that host (to that network host belongs). Network is quite cluster and hosts ar folks in them. 2 completely different networks willnot communicate with one another at layer a pair of however can communicate exploitation layer three Message Forwarding devices (Layer three Devices). to higher perceive host addressing please see DS Understanding science Address
.Communication at Network Layer inside Single Network
Single network at layer three means that all those hosts whose network half is same in their science address. for instance all host with network 192.168.5.0 / 24. therefore in single network all hosts have same network address. Communication inside one network is completed via switch. For details please refer summary of Layer a pair of Communication. In single network, inter-communication device is Switch that may be a layer a pair of device, therefore layer three addresses solely plays role in Jean Arp. every packet sent to change is complete packet, it contains layer three data additionally. At layer three supply science address and destination science address is mentioned. however as Switch is layer a pair of device, it reads solely layer a pair of data and will forwarding supported layer a pair of data (MAC Address). Layer three data as mentioned higher than is employed for affiliation between multiple networks, therefore let’s see however inter-communication is completed between multiple networks and additionally however host machine connects to net.
Connectionless Communication (Connection-oriented at higher than layers)
Host Addressing
Message Forwarding (Inter-network communication)
In this article we'll study concerning all the functions of network layer very well with examples and the way communication is completed at network layer. For this you want to have understanding however layer a pair of network works, for this, please refer - summary of Layer a pair of Networks and Communication.
Host Addressing
For purpose of addressing network layer uses a particular quite addressing theme known as science Address (Logical Address). science address consists of thirty two binary bits. Its’ written in decimal kind exploitation four octets (1 octet is of eight bits) (32 / eight = 4). Example of science address version four – 192.168.5.10. science address contains 2 half in them – Network half and Host half. Host half outlines distinctive address of host and network half define network of that host (to that network host belongs). Network is quite cluster and hosts ar folks in them. 2 completely different networks willnot communicate with one another at layer a pair of however can communicate exploitation layer three Message Forwarding devices (Layer three Devices). to higher perceive host addressing please see DS Understanding science Address
.Communication at Network Layer inside Single Network
Single network at layer three means that all those hosts whose network half is same in their science address. for instance all host with network 192.168.5.0 / 24. therefore in single network all hosts have same network address. Communication inside one network is completed via switch. For details please refer summary of Layer a pair of Communication. In single network, inter-communication device is Switch that may be a layer a pair of device, therefore layer three addresses solely plays role in Jean Arp. every packet sent to change is complete packet, it contains layer three data additionally. At layer three supply science address and destination science address is mentioned. however as Switch is layer a pair of device, it reads solely layer a pair of data and will forwarding supported layer a pair of data (MAC Address). Layer three data as mentioned higher than is employed for affiliation between multiple networks, therefore let’s see however inter-communication is completed between multiple networks and additionally however host machine connects to net.
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