简析通信外文翻译

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1、简析通信外文翻译简析通信外文翻译___了解TCPIP寻址和子X配置基础知导读：ktothetop?MOREINFORMATIONThesuccessofTCP/IPasthesofdifferenttypes.Theseainclasses(alongask,andusuallyadefaultgatesofdifferenttypes.Theseainclasses(alongallersubadministrators.AsubmaskisusedtodivideanIPaddressintotasksberthatuniquelyidentifiesah

2、ost(puterorotherdevice,suchasaprinterorrouter)onaTCP/IPallyexpressedindotted-decimalformat,bersseparatedbyperiods,suchas192.168.123.132.TounderstandhoasksareusedtodistinguishbetineanIPaddressinbinarynotation.Forexample,thedotted-decimalIPaddress192.168.123.132is(inbinarynotation)the

3、32bitnumber110000000101000111101110000100.Thisnumbermaybehardtomakesenseof,sodivideitintofourpartsofeightbinarydigits.TheseeightbitsectionsareknopleIPaddress,then,bees11000000.10101000.01111011.10000100.Thisnumberonlymakesalittlemoresense,soformostuses,convertthebinaryaddressintodot

4、ted-decimalformat(192.168.123.132).Thedecimalnumbersseparatedbyperiodsaretheoctetsconvertedfrombinarytodecimalnotation.ForaTCP/IPationisdestined.Routersonlyknoemberofanduseinformationstoredintheirroutetabletodeterminehople192.168.123.132anddivideitintothesetaskTheseconditem,ask.Thes

5、ubmaskisusedbytheTCP/IPprotocoltodeterminewheth567简析通信外文翻译___了解TCPIP寻址和子X配置基础知(2)导读：2.168.123.132isaclassCaddress.Itsfirstoctetis192,escenarios,thedefaultsubmaskvaluesdonotfittheneedsoftheanization,becauseofthephysicaltopologyofthebersofoteinedunlessyouhavemoreinformation.Thisinform

6、ationissuppliedinanother32-bitnumbercalledasubmask.Inthisexample,thesubmaskis255.255.255.0.Itisnotobviousbermeansunlessyouknoaskis:11111111.11111111.11111111.0000000LininguptheIPaddressandthesubmasktogether,theask(255.255.255.0)Thefirst24bits(thenumberofonesinthesubmask)areidentifie

7、dastheberofremainingzerosinthesubmask)identifiedasthehostaddress.Thisgivesyouthefollopleusinga255.255.255.0submask,thatthethelocalsuboraremotetheostalldecimalsubmasksconverttobinarynumbersthatareallonesontheleftandallzerosontheright.Someothermonsubmasksare:DecimalBinary255.255.255.1

8、921111111.11111111.