Layer 2 networking tutorial pdf

Sample test cases for protocol testing of network devices. The layer 3 switch functions at the network layer and performs the multiport, virtual lan, data pipelining functions of a standard layer 2 switch. The osi model has total of 7 layers of network communication, in which layer 2 and layer 3 are very crucial. Network layer provides the same functionality as the physical, the data link and. The ubiquity of carrierprovided layer 2 wan networks makes it a required consideration for an organization building a wan. Layer 2 wan services provide highperformance, costeffective, and reliable services within metropolitan areas and, in some cases, for broader geographic areas. Tcpip tutorial and technical overview ibm redbooks.

How computers connected to a layer 2 switch communicate with each other, explained in detail stepbystep. Understanding basic layer 2 switching part 1 youtube. All devices connected arbitrarily using all previous ways to connect each other, resulting in a hybrid structure. Layer 2 protocols basically control access to a shared medium copper, fiber. It can also perform basic routing functions between virtual lans. Layer2 is the network layer used to transfer data between. Pdf securing layer 2 in local area networks researchgate. Lan layer 2 qoscos protocol for traffic prioritization205. Overview of layer 2 networking techlibrary juniper. Overview of layer 2 networking techlibrary juniper networks. Pdf network security problems have been well known and ad dressed in the. Within the discussion of content networking, we will. Tcpip tutorial and technical overview december 2006 international technical support organization gg24337607. Note that network layer addresses can also be referred to as logical addresses.

When we talk about layer 2 and layer 3 networking, it is. Switch is configured with the ports on the appropriate vlan. Vlan is layer2 technology which works closely on ethernet. A network can be defined as a group of computers and other devices. Data communication and computer network tutorialspoint. Very important when users run norton ghost, for example.