Checkpoint-Osi Model

OSI Model Yvette Flores IT 242 April 8, 2011 Lawrence Master OSI Model An Open Systems Interconnection (OSI) lengthiness influence is the worlds major earningsing architecture take for granted (Regan, 2004). According to Regan, The OSI address instance adopts a layered go on where a communication subsystem is embarrassed down into seven layers, individually one of which performs a soundly defined function (2004). So it serves as a nonplus in which then developed services and protocol seat be drafted. The layers argon as followed: application, presentation, session, transport, profits, entropy tie, and physiologic. The layers that WAN (Wide cranial orbit Networks) protocols operate in the OSI Model would be network, selective information link and physical. Being that network is defined in the OSI model as beingness obligated for addressing and routing between sub-networks (Local region Networks being that), in like room data link is trusty for the transfer of data over the channel and finally the physical layer which handles physical signaling, including connectors, timing, voltages, and different matters all this make up protocols for WAN.

Some WAN protocols harbour frame relay, High-Level selective information Link Control (HDLC), and period to point protocol. The layer of the OSI reference model that switches and routers operate in is the network layer; these are hardware devices that assist in addressing and routing between sub-networks which is the definition of the network layer of the OSI reference model. A brouter (short for a bridge router) would ca-ca down under two layers, data link and network because it substructure distinguish non-routable protocols and forward them to the pick up network therefore paltry on being a data link. Reference Regan, P. (2004). Wide Area Networks (1st ed.). Upper Saddle River, NJ: Prentice Hall.If you want to get a full essay, cabaret it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper