osi open systems interconnection word block on white

osi model layers networking protocol application presentation session transport network datalink physical communication standard architecture tcp ip framework connectivity interface data transmission packets routing switching ethernet protocols segmentation layering functionality services devices encapsulation multiplexing topology osilayers interoperability standards networkingmodel networkdevices datatransmission layerprotocol networklayer transportlayer applicationlayer datalinklayer physicallayer errordetection flowcontrol networkprotocols networkarchitecture connection frames segments bits addressing lan wan osireference osimodellayers internet host transmissioncontrol communicationprotocol connectivitymodel errorcorrection dataencapsulation layeredarchitecture protocolstack datapackets