A key network layer design issue is to determine how packets are routed from source to destination. 2. The services should be independent of the router technology. Network layer design issues: The network layer comes with some design issues they are described as follows: 1. Network Layer Design Goals 1. Connectionless Service − In this service, each packet of the message is considered as an independent entity and is individually routed from the source to the destination. It is the most important functionality. MAC, switches) 3. Design issue of the network layer - The basic design issue of the network layer includes the services provided to the transport layer...The network layer provides services to the transport layer at the network layer/transport layer interface. The router configuration details should not be of a concern to the transport layer. Connection − Oriented Service − In this service, a path is setup between the source and the destination, and all the data packets belonging to a message are routed along this path. The network layer has been designed with the following goals: 1. Keywords Network Design Optical Network Valid Inequality Logical Network Network Design Problem These keywords were added by machine … a few protocol.Each data packet has destination address and is routed independently irrespective of the packets. Simple Network Management Protocol (SNMP), Multipurpose Internet Mail Extension (MIME) Protocol, Computer Network | Quality of Service and Multimedia, Web Caching and Conditional GET Statements, Introduction of Firewall in Computer Network, Network Devices (Hub, Repeater, Bridge, Switch, Router, Gateways and Brouter), Difference between layer-2 and layer-3 switches, Difference between Secure Socket Layer (SSL) and Transport Layer Security (TLS), Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP) in Data Link Layer, Responsibilities and Design issues of MAC Protocol, Computer Networks | Network Layer | Question 1, Computer Networks | Network Layer | Question 2, Network Layer Services- Packetizing, Routing and Forwarding, Wireless Media Access Issues in Internet of Things, Basic Network Attacks in Computer Network, Difference between Storage Area Network (SAN) and Network Attached Storage (NAS), Differences between Wireless Adhoc Network and Wireless Sensor Network, Difference between Next Generation Network and Traditional Network, Difference between Preemptive and Non-preemptive CPU scheduling algorithms, Multiple Access Protocols in Computer Network, Regular Expressions, Regular Grammar and Regular Languages, Write Interview Providing a well-defined service interface to the network layer. iso connection-mode network service primitives N-CONNECT.request (Called NSAP, Calling NSAP, QOS, Receipt Confirmation Selection, Expedited Data Selection, NS-User Data) The position of the data link layer in the internet model is the second. The network layer provides service its immediate upper layer, namely transport layer, through the network − transport layer interface. 2. This is most sophisticated service the data link layer can provide to the network layer . acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Domain Name System (DNS) in Application Layer, Address Resolution in DNS (Domain Name Server), Types of DNS Attacks and Tactics for Security. Through the network/transport layer interface, the network layer transfers it’s services to the transport layer. Based on the connections there are 2 types of services provided : 3. 1.1.1 Design Issues with Network Layer • A major design issue in the network layer is to determine the packet routing that is how each packet routed from source to destination. 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