A wide area network wan is a telecommunications network that extends over a large. However, wan appliances can also be application aware in that they are capable of analyzing application protocol streams and manipulating their behavior according to policy. Introduction to internetworking 15 1 introduction to internetworking this chapter works with the next six chapters to act as a foundation for the technology discussions that follow. Vpls networks offer the ability of a meshed network config any to any, so all sites can communicate with each other, increasing network continuity. Some examples of wan technologies like leased lines, framerelay, dsl, cable, and ethernet. Pdf an introduction to wireless technologies part 1. The wide area network wan is a critically important topic for number of reasons. This manual contains commands for configuring the following technologies and features.
The moment packets hit the routers internet interface, they become at what is called wan. The company is looking to enable direct internet access from their branch offices but they are concerned about security. Wan technologies followed by information on the selected wan of focus a hybrid wan. A can, for example, may have a localized backbone of a wan technology, which connects. What appropriate wan technologies are used to meet. Upload your document and click the submit to dropbox button. Introduction to wan technologies with lab 12044 1 of. While there remains a place for wan optimization technology in a world of highbandwidth. The wan is a place in the network that aggregates various types, speeds, and links running a disparate set of protocols together crossing metropolitan, state, and even country boundaries. One primary difference between a wan and a lan is that a company or organization must subscribe to an outside wan service provider to use wan carrier network services. Internet access needtochange currently backhauls over half of its internet traffic to its data center in salt lake city. A wan uses data links provided by carrier services to access the internet and connect different locations of an organization to each other. Routing and management of the vpls network can be done by the customer or provider. A wan is usually terminated on a cisco devices serial interface.
You have now learned the basics of wans wide area network. The difference between circuit switching, packet switching, and cell switching. Serial interfaces support a wide variety of wan encapsulation types, which must. Concentrates on an introduction to wide area networking wans. Multiple types of wan technologies mpls vpn, internet, evpl are supported on a single port and circuit. Different types of wan technologies data networking. Wan originally formed by tele providers, nowadays, provided by internet service providers isp. Centralized orchestrationanalytics offering unprecedented wan and application performance visibility. Cisco ios widearea networking command reference pdf. Understanding wan technologies and why networks were divided to local area networks lan and wide area network wan will help you distinguish among what i call packet carriers technologies which carry generated packets among network devices from hop to hop. Learn how you can improve your wide area network wan through link aggregation.
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