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Cisco Networking (Routing and Switching)

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Alan Mark
Alan Mark

Cisco Networking ppt, ppt contains an upperview of cisco packet tracer and how to create to create a network in it.

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Cisco Networking (Routing and Switching)
• A computer network or data network is a digital telecommunication network which allows nodes to share resources. • In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.
• Usually networks are categorised on the basis of their area of operation.
Equipment that connects directly to a network segment is referred to as a device. These devices are broken up into two classifications. • end-user devices • network devices End-user devices include computers, printers, scanners, and other devices that provide services directly to the user. Network devices include all the devices that connect the end user devices together to allow them to communicate.
A network interface card (NIC) is a printed circuit board that provides network communication capabilities to and from a personal computer. Also called a LAN adapter.
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.
Cisco Networking (Routing and Switching)
About Subnetting & Supernetting In subnetting, a network is divided into several smaller subnetwork with each subnetwork(or subnet) having its own subnetwork address. In supernetting, an organization can combine several class C addresses to create a larger range of addresses (supernetwork). SUBNETTING Class A, B, C in IP addressing are designed with two levels of hierarchy. The organization has two-level hierarchical addressing, but it cannot have more than one physical network./ The host cannot be organized into groups, and all of The hosts are at the same level./ The organization has one network with many hosts. One solution to this problem is subnetting, the further division of a network into smaller networks called subnetworks.
Example of Subnetting ( Example / Class A) An organization with a class A address at least 1,000 subnetworks. Find the subnet mask and configuration of each subnetwork. (Solution) 1. There is a need for at least 1,000 subnetworks.(we need at least 1,002 subnetworks to allow for the all-1s and all-0s subnetids) 2. This means that the minimum number of bits to be allocated for subnetting should be 10, (29 < 1,002 < 210). 3. 14 bits are left to define the hostids. Subnet mask (11000000 = 192).
Cisco Networking (Routing and Switching)
Range of addresses
Subnetworks in example
Supernetting means assigning a set of class C addresses to an organization that needs more than 254 host addresses. However , when these class C addresses are entered into the routing table, each occupies one entry in the routing table./ 256 entries in the routing table. The classless interdomain routing(CIDR) technique is devised to reduce the number of routing table entries. In this technique, instead of entering each single class C address with its corresponding default mask(255.255.255.0),the router can use the supernet mask and the lowest network address in the group.
CIDR
•Hubs – less expensive, used in a very small LAN where low throughput is OK •Switches – segments collision domains, interconnects network segments, more expensive, but performance makes it cost effective.
•It is a layer 3 or network layer device. •In this there is no broadcast. •It is WAN technology device. •It is useful to connect different networks. •Packet filtering & it finds the best path selection.
•Routing is the exchange of routes between different networks . •There are three types of routing: 1. Default routing 2. Static routing 3. Dynamic routing
•A routing protocol is the communication used between routers. •A routing protocol allows one router to share information with other routers. •The information a router gets from another router, using a routing protocol, is used to build & maintain a routing table. Examples of routing protocols: 1. RIP [ROUTING INFORMATION PROTOCOL] 2. OSPF[OPEN SHORTEST PATH FIRST]
• RIP is a distance vector routing protocol • Hop count is used as the metric for path selection • If the hop count is greater than 15, the packet will be discarded • By default, routing updates are broadcast every 30 seconds • RIP has evolved over the years from a Classful Routing Protocol, RIP Version 1 (RIP v1), to a Classless Routing Protocol, RIP Version 2 (RIP v2).
• Open Shortest Path First • Dynamic IGP (Interior Gateway Protocol) • Use within your own network • Link state algorithm
• 2 End devices • 1 Network device ( Switch) • 2 Connections ( Copper Straight Through)
• Ping was send from one end device(192.168.0.100) to another End device(192.168.0.101) . • Ping test was successful.
• PC0(source) sends packets to PC1(destination) • The network device used was switch, which carried out the whole transfer of packet from PC0 to PC1.
Network Consists of - • 1 Router • 2 Switches • 6 PCs
• PC0,PC1,PC2 are connected with Switch0. • PC0(192.168.10.2), PC1(192.168.10.3), PC2(192.168.10.4) • PC3,PC4,PC5 are connected with Switch1. • PC0(192.168.11.2), PC1(192.168.11.3), PC2(192.168.11.4) • Swiches0 and 1 are connected with Router0. • Router is assigned with different IP address for different networks. • PCs default gateway is set with respect to IP address of router. • The network is established successfully.
Cisco Networking (Routing and Switching)

More Related Content

Cisco Networking (Routing and Switching)

  • 2. • A computer network or data network is a digital telecommunication network which allows nodes to share resources. • In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.
  • 3. • Usually networks are categorised on the basis of their area of operation.
  • 4. Equipment that connects directly to a network segment is referred to as a device. These devices are broken up into two classifications. • end-user devices • network devices End-user devices include computers, printers, scanners, and other devices that provide services directly to the user. Network devices include all the devices that connect the end user devices together to allow them to communicate.
  • 5. A network interface card (NIC) is a printed circuit board that provides network communication capabilities to and from a personal computer. Also called a LAN adapter.
  • 6. Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.
  • 8. About Subnetting & Supernetting In subnetting, a network is divided into several smaller subnetwork with each subnetwork(or subnet) having its own subnetwork address. In supernetting, an organization can combine several class C addresses to create a larger range of addresses (supernetwork). SUBNETTING Class A, B, C in IP addressing are designed with two levels of hierarchy. The organization has two-level hierarchical addressing, but it cannot have more than one physical network./ The host cannot be organized into groups, and all of The hosts are at the same level./ The organization has one network with many hosts. One solution to this problem is subnetting, the further division of a network into smaller networks called subnetworks.
  • 9. Example of Subnetting ( Example / Class A) An organization with a class A address at least 1,000 subnetworks. Find the subnet mask and configuration of each subnetwork. (Solution) 1. There is a need for at least 1,000 subnetworks.(we need at least 1,002 subnetworks to allow for the all-1s and all-0s subnetids) 2. This means that the minimum number of bits to be allocated for subnetting should be 10, (29 < 1,002 < 210). 3. 14 bits are left to define the hostids. Subnet mask (11000000 = 192).
  • 13. Supernetting means assigning a set of class C addresses to an organization that needs more than 254 host addresses. However , when these class C addresses are entered into the routing table, each occupies one entry in the routing table./ 256 entries in the routing table. The classless interdomain routing(CIDR) technique is devised to reduce the number of routing table entries. In this technique, instead of entering each single class C address with its corresponding default mask(255.255.255.0),the router can use the supernet mask and the lowest network address in the group.
  • 14. CIDR
  • 15. •Hubs – less expensive, used in a very small LAN where low throughput is OK •Switches – segments collision domains, interconnects network segments, more expensive, but performance makes it cost effective.
  • 16. •It is a layer 3 or network layer device. •In this there is no broadcast. •It is WAN technology device. •It is useful to connect different networks. •Packet filtering & it finds the best path selection.
  • 17. •Routing is the exchange of routes between different networks . •There are three types of routing: 1. Default routing 2. Static routing 3. Dynamic routing
  • 18. •A routing protocol is the communication used between routers. •A routing protocol allows one router to share information with other routers. •The information a router gets from another router, using a routing protocol, is used to build & maintain a routing table. Examples of routing protocols: 1. RIP [ROUTING INFORMATION PROTOCOL] 2. OSPF[OPEN SHORTEST PATH FIRST]
  • 19. • RIP is a distance vector routing protocol • Hop count is used as the metric for path selection • If the hop count is greater than 15, the packet will be discarded • By default, routing updates are broadcast every 30 seconds • RIP has evolved over the years from a Classful Routing Protocol, RIP Version 1 (RIP v1), to a Classless Routing Protocol, RIP Version 2 (RIP v2).
  • 20. • Open Shortest Path First • Dynamic IGP (Interior Gateway Protocol) • Use within your own network • Link state algorithm
  • 21. • 2 End devices • 1 Network device ( Switch) • 2 Connections ( Copper Straight Through)
  • 22. • Ping was send from one end device(192.168.0.100) to another End device(192.168.0.101) . • Ping test was successful.
  • 23. • PC0(source) sends packets to PC1(destination) • The network device used was switch, which carried out the whole transfer of packet from PC0 to PC1.
  • 24. Network Consists of - • 1 Router • 2 Switches • 6 PCs
  • 25. • PC0,PC1,PC2 are connected with Switch0. • PC0(192.168.10.2), PC1(192.168.10.3), PC2(192.168.10.4) • PC3,PC4,PC5 are connected with Switch1. • PC0(192.168.11.2), PC1(192.168.11.3), PC2(192.168.11.4) • Swiches0 and 1 are connected with Router0. • Router is assigned with different IP address for different networks. • PCs default gateway is set with respect to IP address of router. • The network is established successfully.

Editor's Notes

  1. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.