Online Data Link Layer Protocols eLearning

Higher-Layer WAN Protocols This WestNet e-Learning module reviews connection-oriented switched services commonly used to move information across a wide area. These services include Integrated Services Digital Network (ISDN), frame relay, and X.25. Although we refer to this unit as Higher-Layer WAN Protocols, these protocols are essentially Data Link Layer protocols. However,these protocols go beyond simple link  more...

WAN Data Link Layer Protocols This WestNet e-Learning module covers the protocols used to move information across point-to-point networks. These protocols are associated with the Data Link Layer of the Open Systems Interconnection (OSI) model.  more...

LAN Software Architectures This WestNet e-Learning module will present the Physical and Data Link Layer protocols to the higher layers, which are implemented by desktop operating systems (OSS) such as Microsoft Windows 98 or 2000.  more...