Certification: Cisco CCNA Routing and Switching - Cisco Certified Network Associate (CCNA) Routing and Switching
CCNA routing and switching is a certification that validates one’s ability to do the following tasks; installation, trouble shooting, configuration and the operation of all switched networks and the networks that are smaller in size. It is also a fundamental requirement when it comes to creation of the status route in computing but before this one has to know what is required before attaining this certification.
One has to be an expert in the Interconnecting of the Cisco devices since in this stage one learns about the basics of routing and switching and their specific applications. CCNA is used by network engineers and so it maximizes their knowledge when it comes to issues of networking knowledge and application of the command that views the routing table in order to connect to the network and define the routes between the computer’s networks.
In order to understand how to create the status one has to know the basics of the CCNA routing and switching. Routing is generally a computing concept and it mainly involves the basic of determining what routes are important and how information is to be transported through these paths through the subnets.
Determining the route path:
The route path is usually used by the packet to travel and therefore in CCNA routing the protocols make use of their metrics to determine what correct path to use in order to avoid collision of the packets travelling from taking place. The metric in this case is referred as the bandwidth and it uses certain algorithms that have to be chosen correctly in order to maintain the routing tables have already been designed and the main thing is that there are different algorithms basing on the packet to be sent through the path. The function of the algorithms is to ensure that the correct information has been recorded whenever information is sent through the route path. It also provides the router with the appropriate information concerning the destination where the packet is to reach. Lastly, it ensures that the packet has been delivered to the correct destination and then records in case an error has occurred n the course of the process.
Another important concept in routing is the routing tables, other than carrying information about the routing process they also contain other information like the type of data and the possible route to be followed by a particular packet as an alternative. The routing tables contain different matrices and as a result give the routers an opportunity to communicate with each other. The benefit of this point is that through communication the chances of collision of the data packets and occurrence of any error are minimized. In the process of communication there is always an update message this message is always important because the routers are able to determine their level of functionality, the more the messages, the better their functioning. In addition, the routers have the ability to create certain network topography that has led to the introduction of link information. The link information is of importance since different routers are able to relate with each other easily without facing any difficulties. This link information also ensures that all the information in the routing process is well coordinated and therefore there is perfection in the routers in terms of using all the available routes.
It is also a type of an algorithm and is a simple process since it tends to be the same in all the protocols of routing. The process is also straight forward because the only task is for the host to choose the correct destination where the packet is to be sent. The packet is usually addressed to a particular address and as a result the process goes on more swiftly. In this case the task of the router is also quite simple because its only task is to determine whether it knows how to forward the packet or not. If it knows how to forward the packet then it transmits the packet to the next physical address in other words this process is known as switching on the other hand if the router does not know how to forward the packet then it has the option of dropping that particular packet and abort the process, with this the switching process is considered to have failed.
The switching process is also considered to be a series because it does not stop after the packet has been delivered in one point; it has to proceed to the next step till the ultimate destination as indicated in the router. The special characteristic about the switching process is that as the packet moves from one network to the next, the physical address changes but then the protocol address remains to be of the original version and to add on this multiple routers may join together and perform a similar task.
In routing and switching there are different types of algorithms that are used to differentiate the different types of routers and switches:
Creation of the status route:
For the status route to be constructed in the CCNA the routed protocols have to be transported across an internet network. There should also be the network protocols that are available in the OSI reference model because of the presence of the network layer, session layer, transport layer, application layer and the presentation layer. With all these it becomes easy to create the status route that is used to identify the available routers in the route and their status in terms of how they function and the possible packets to be sent through them.
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