asit ccna routing & switching

CCNA Routing & Switching

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Post on 18-Nov-2015




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ASIT is one of the leading providers of Networking courses "CCNA Routing & Switching",along with professional certification. We associate with industry experts to deliver the training requirements of Job seeks and working professionals.for more details please visit our website.


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CCNA Routing & Switching

Classification of Basic Network Hardware Components Network Interface Cards (NICs)CablesConnectorsServersWorkstationsLine drivers or repeatersTransceiversIntelligent hubsBridgesSwitchesRouters Gateways

ModulesNetwork interface cardsNetwork connectors and hubsServer and workstation hardwareRepeaterBridgeSwitchSwitch TechnologyRouterGateway


ObjectivesRouted protocolIP routing protocols


Routable and Routed ProtocolsA routed protocol allows the router to forward data between nodes on different networks. In order for a protocol to be routable, it must provide the ability to assign a network number and a host number to each individual device. These protocols also require a network mask in order to differentiate the two numbers. The reason that a network mask is used is to allow groups of sequential IP addresses to be treated as a single unit. IP is a connectionless, unreliable, best-effort delivery protocol. As information flows down the layers of the OSI model; the data is processed at each layer.IP accepts whatever data is passed down to it from the upper layers.

Packet Propagation and Switching Within a Router

Packet Propagation and Switching Within a RouterAs a frame is received at a router interface. The MAC address is checked to see if the frame is directly addressed to the router interface, or a broadcast. The frame header and trailer are removed and the packet is passed up to Layer 3. The destination IP address is compared to the routing table to find a match.The packet is switched to the outgoing interface and given the proper frame header.The frame is then transmitted

Internet Protocol (IP): Connectionless

The Internet is a gigantic, connectionless network in which all packet deliveries are handled by IP. TCP adds Layer 4, connection-oriented reliability services to IP

IP Routing Protocols

Routing Overview

A router is a network layer device that uses one or more routing metrics to determine the optimal path.Routing metrics are values used in determining the advantage of one route over another.Routing protocols use various combinations of metrics for determining the best path for data.

Routing Versus SwitchingThis distinction is routing and switching use different information in the process of moving data from source to destination

Routing Versus Switching


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