Join Greg Sowell for an in-depth discussion in this video DSL and ADSL, part of Foundations of Networking: Network Media (WANs).
DSL, or digital subscriber line, is a somewhat generic term,…which usually refers to…asynchronous digital subscriber line.…DSL is used to transmit digital data,…like Internet access, over phone lines.…DSL is delivered simultaneously with voice service.…This is possible because DSL delivers its data…on frequencies not used by the human voice.…Speeds can be from 256k to 100Mb on download.…
Depending on DSL technology and implementation,…some customers will be able to reach speeds…of 500 to 800Mb.…Since most DSL is asymmetric,…it will generally have slightly higher download…than upload speeds.…Early DSL standards allowed for 8Mb…to be delivered over phone lines…up to about 1.2 miles from the central office,…after which speeds would start to degrade.…Soon after, DSL loop extenders were introduced…to regenerate signals,…allowing runs of unlimited distances…so long as enough extenders were used.…
One of the main advancements in DSL…came in the late '90s with the advent of affordable DSPs,…or, digital signal processors.…
He discusses different WAN technologies and features such as speeds, spans, and price points—including inexpensive options such as VPN. He then covers switches (the devices that connect computers in your building) and routers (devices that control the transmission of network data). Along the way, Greg shows how to build private connections, implement free networking over the Internet, build switch networks, and overlay-routed networks. He'll also introduce different routing protocols, such as OPSF link-state routing and distance-vector routing with RIPv2, EIGRP, and BGP.
Note that this course maps to domains 1 and 2 of the Microsoft Technology Associate (MTA) Networking Fundamentals certification exam (98-366).
- Understanding the technology: from dial-up to VPNs
- Working with hubs, bridges, and switches
- Ensuring hardware redundancy
- Using switching types and MAC tables
- Preventing bridge loops with STP
- Routing with routing tables
- Using NAT
- Securing your switches and routers
- Setting up firewalls
- Working with different routing protocols: RIPv2, OSPF, EIGRP, and more
Skill Level Beginner
Foundations of Networking: Network Media (LANs)with Greg Sowell1h 7m Intermediate
1. WAN Technologies
4. Routing Protocols
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