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Overview/Description
There are various aspects to IP addressing, including calculations for constructing an IP address, classes of IP addresses designated for specific routing purposes, and public versus private IP addresses. There are also two types of IP addresses: IPv4 and IPv6. This course introduces the concepts behind IPv4 addresses. Subnetworks, or subnets, are very common in all but the smallest network environments, segmenting networks into smaller divisions that have their own addresses. To create subnet addresses, some of the bits that are used for the host portion of an IP address...
Overview/Description
When you understand how a switch and router operate, how they communicate, and how to configure basic security, you can move on to understanding an expanded network. VLANs contribute to network performance by separating large broadcast domains into smaller segments. A VLAN allows a network administrator to create logical groups of network devices. These devices act as if they were in their own independent network, even though they share a common infrastructure with other VLANs. This course explains how to implement and verify VLANs and trunking. Routing is the process of...
Overview/Description
As an enterprise grows beyond a single location, it becomes necessary to interconnect LANs in various locations to form a WAN. Several technologies are involved in the functioning of WANs. This course describes the technologies, functions, and characteristics of WANs...
Overview/Description
OSPF is a link-state routing protocol that is often used in networks due to scalability, fast convergence, and multivendor environment support. Understanding OSPF operations and OSPF terms is therefore important for network engineers who would like to design, implement, and troubleshoot scalable networks. In this lesson, a quick overview of link-state routing protocols, OSPF data structures, and OSPF metrics is done before explaining the functions of OSPF and its packet types. The course describes how the link-state database is built using LSAs, explains OSPF areas as a...
Overview/Description
Frame Relay is a standardized WAN technology that is a well-proven, packet-switching, connection-oriented technology that is used to interconnect remote sites. This course describes the basic functionality of Frame Relay, including topologies, reachability issues, and LMI signaling. The course also describes how to configure basic Frame Relay and Frame Relay over point-to-point and multipoint subinterfaces. The course concludes with verification of Frame Relay operations.
Target Audience
Anyone wishing to obtain Cisco Certified Network Associate (CCNA) 200-120...
Overview/Description
In hierarchical network design, some links between access and distribution switches may be heavily utilized. The speed of these links can be increased, but only to a certain point. EtherChannel is a technology that allows you to circumvent this restriction by creating logical links made up of several physical links. This course describes EtherChannel technology and the various technologies that are available to implement it. You will also learn how to configure EtherChannel and how to verify EtherChannel operations. This course also explains solutions to routing problems...
Overview/Description
OSPF routing protocol supports a two-tier hierarchical structure. By utilizing a two-tier or multiarea OSPF design, you can increase the network scalability and reduce the load and utilization on routers due to fewer SPF calculations and smaller routing tables. This course first describes differences between single-area and multiarea OSPF design. The course describes how OSPF implementation should be planned as well as describes how to configure and verify multiarea OSPF design in an IPv4 network. OSPF is a link-state routing protocol and therefore it scales well with a...
Overview/Description
EIGRP is an advanced distance vector routing protocol that was developed by Cisco. EIGRP is suited for many different topologies and media. In a well-designed network, EIGRP scales well and provides quick convergence times with minimal overhead. EIGRP is a popular choice for a routing protocol on Cisco devices. This course describes how to configure and monitor EIGRP. EIGRP is one of the routing protocols that is commonly used in large enterprise networks. Troubleshooting problems related to the exchange of routing information is one of the most essential skills for a...
Overview/Description
Network staff is responsible for managing each device on the network according to best industry practices and for reducing device downtime. This course provides an overview of some of the tools for monitoring and troubleshooting Cisco devices. SNMP basic components and operation are explained. A graphing tool can use SNMP to periodically poll an SNMP agent (for example, a router) and graph the values. Syslog is another useful protocol that allows a network device to send event notification messages to a centralized logging server. The course also explains the NetFlow...
Overview/Description
Diagnosing and resolving problems is an essential skill of jetwork engineers. A particular problem can be diagnosed and sometimes even solved in many different ways. By using a structured approach to the troubleshooting process, you can greatly reduce the average time it takes to diagnose and solve a problem. This course describes various approaches to troubleshooting network connectivity issues. As with IPv4 networks, problems will arise in IPv6 networks. You will be required to troubleshoot these problems, and you can use the same structured approach as troubleshooting...
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