Third exchange technical classification, principle and realizationmethod
At present mainly has two kind of third 350-024 exchange technology: The firstkind is the text of a telegram to the text of a telegram exchange,each 350-024 text of a telegram all must experience third processing (namelyat least is route processing), and the data 350-024 stream retransmits isbased on the third address; The second kind flows the exchange, it notin third 350-024 processing all texts of a telegram, but only analyzes flowsthe first text of a telegram, completes route processing, andretransmits this text of a telegram based on the third address, in theclass following text of a telegram uses one kind or the many kinds ofshortcuts technology carries on processing, this kind of technicaldesign goal facilitates the line fast route. Understood the thirdexchange technology the key first needs to differentiate these twokind of texts of a telegram differently to retransmit the way.
Is its can adapt the route analysis 350-024 situs change the text of atelegram to a text of a telegram processing method remarkablecharacteristic. Through the movement standard agreement and themaintenance route table, the text of a telegram to the text of 350-024 atelegram commutation equipment may the dynamic again route text of atelegram, bypass the network breakdown and jam does not need to waitfor the high level agreement examination text of a telegram loss.Flows 350-024 exchange method not these characteristics, because the followingtext of a telegram walks the shortcut not to need third processing,like this, it cannot distinguish the standard agreement to satisfy theneed by the table change. Therefore, flows the exchange methodpossible need other agreement to obtain the analysis situs change orthe jam information, in order to arrives the exchange system correctplace. 2.1 texts of a telegram to text of a telegram exchangetechnology principle and realization method
Follows this kind of data stream process the text of a telegram to thetext of a telegram exchange: The text of a telegram enters in thesystem OSI 350-024 reference model first, namely the physical connection, thenaccepts the goal MAC inspection in second, if can 350-024 exchange in secondcarries on two exchanges, otherwise enters to third, namely networklevel. In third, the text of a telegram must pass through the waydetermination, the address analysis and certain special services.After 350-024 processing finished the text of a telegram to renew, afterdetermined the appropriate output port, the text of a telegramtransmits through first to the physical medium on. The traditionalrouter is one kind typical conforms to the third text of a telegram tothe text of a telegram exchange technology equipment, it the inherentflaw which produces based on the software work mechanism has beencompletely overcome by the modern age based on the hardware thirdcommutation equipment.
