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̽ӑطԺУӋCWjn̽̌W`cо
ՓPI~:WǰW̌Wwϵ̌Wĸ
Փժ Ҫ:ӋCWjǸУӋCIһTn҇ߵҪMɲֵĵطԺУ,茦n̽̌WwϵMв{̓,mԓn̽̌WҪҪᘌӋCWjn̾ͽ̌Wwϵ̌Wݡ̌W߽̌WЧ̌W^̵ȷMһЩЌе̽`cо
SУU,WӴgľxu,ӴνuϢg@lϵġӋCWjyӴ,FһЩµĆ},ӋCWjnwϵñݵĽMMᘌԵ{,Ҫƽ̌W,ҕ̌WYԴĽO,Ķ_WӋCWj
1 ̌Wwϵо
ӋCWjgÏVԏ,Ҹ,Փs,glչѸһTcgBнY϶γɵĽƌW,yȻʽMн̌WķʽڲܝM㲻ͬӴΌWҪ,ѲmʽİlչҪڡӋCWjnγm,lչڌWWĽ̌Wwϵ,ӽ̌Wwϵʹ̎ͬWӴ,mս̌WMc,Ķ߽̌WЧ,MˮƽRČW
1.1 ̌WĿ˵ČӴλ
ӋCWjn̽ɲӴεĽ̌Wģʽ
һӴΞӋCWjgՓԓӴνҪ֪RYĽǶȳl,WӋCWj֪Rcܷһ^ȫĻA,ͬrmn̷ա
ڶӴΞӋCWjgʹüܽ,ԓӴνҪBWӋCWjӲc{ԇWjϵybcSoWվOcļM܉QеČH}
ӴΞӋCWjgOӋܽԓӴνҪBWWjϵyOӋcʩ,ʹ֮mӋCWƵĄӑBlչcW(ͨӍԄӿ)Ľ摪,ӋCWjOWj;WjSoMɞӋCWjPIϵyоOӋSoĸͺ˲
1.2 ̌W^̵ČӴλ
,ڂn^Ҫ÷Ӵν̌WĜʂ䡣̌WĿ˵ČӴ,YϽ̲ļ̌WVҪ,ᘌͬӴεČWOӋmԓӴΌWĽ̌W,Ҫra̲ϲԔăݻMm,_ÿnĻAݺ
,n^Ҫ÷Ӵν̌WĜʂڵ͌ӴεČW,̎ŵҪc,עvʾ,ʹձĻ֪Rͼ;ЌӴεČW,̎v,ҕ֪Rcܵ,ҪQ};ڸߌӴεČW,ԭn֪R얹̵r,̎ҪһЩӾ,oԓӴΌW쪚W˼ęC,עBC\ӋCWj֪RQH}nϽ̎Բ_ʽ̌W,WІ}rSrᆖӑՓ,ƽȌԒķʽ,{ȫwWM̽ھh,}ҪʹӴεČW,^y}Ҫʹ͌ӴεČW Ҫ,Ķڲ֪XMзӴν̌W
ٴ,ϙCoҪ÷ӴΌ`ĜʂڡӋCWj@Tn,h얹̌WnWՓ֪RͲֱӵĎ,䌍|ĸߵֱӰ푌WWЧ,˽̎̌WӴλڵ͌ӴεČW,CԌ,ͨ^A,얹̼;ЌӴεČW,ҪCԌAϼOӋԌ,֪R얹̵ĻA{WeO,˼;ڸߌӴεČW,ԾCԌ,OӋһЩ`Լ̽^˼SČ
1.3 ̌WuČӴλ
ڽ̌WĿ˼̌W^̵ČӴλ,̎ڽ̌WMȰu˜ʵOȷ,ҪнyһҪ,Ҫи߶ȵ`,γɽ̌WuČӴλֻWF֪Rˮƽĸߵ,]WČӴ,ԌWڌӴȡõMҪ˜,ƽrɿռĩuıҪ,ӛԃݵĜyԇ,әCԇ,Mpuƫ,Wעڌ֪Rc\ϡ
2 ̌WݽM
طԺӋCWǰWݵ֪RYɷ֞3,12,е1Tƪ,ҪBʲôӋCWjԼӋCWjķȡ29ӋCWjwϵY,ҪӋCWjwϵYģ,Լ@TCP/IPģ͵ČӴνYܛӲrͻͨԭȡ1012ӋCWjüg,ҪBӋCWjùߵ
1.1Wjһ,1.2ӋCWjwϵYcfh
2.1,2.2M/M/1ģ
3.1ݔԭ,3.2õČӘ˜ʡ
4.1·ӵĻ,4.2ֹͣȴfh,4.3BmARQfh,4.4xARQfh,4.5HDLC,4.6PPP
5.1VWĻ,5.2·x,5.3,5.4X.25
6.1WjB,6.2ؾWϵľWj
7.1Ӹ,7.2TCP/IPwϵе\ݔ,7.3UDP,7.4TCP,7.5ӰӋCWj
8.1IEEE802˜ʸ,8.2IEEE802.3,8.3̫W
9.1ISO/OSI RMĸ,9.2TCP/IPfhđÌ,9.3ϵyDNS,9.4ӋCWj,9.5ӋCWjȫ,9.6ӋCWjϵy
10.1WO,10.2{ƽ{,10.3W,10.4^ͼ,10.5W10.6QC,10.7·,10.8Wg,10.9WjO
11.1^,11.2Wg,11.3ӋCWjgİlչ
12.1WjϢϵy_l
3 ̌Wx
ڵطԺУĽɫλ,@͛Q˽̎n^вHHҪ֪R,ͬrҲڎWxʹý̌W,@һc@ȞҪ
3.1 vྚ^ʽ̌W
þvྚ^ʽ̌WBWӋCWj͌HڌȞW^,̎ϙCcI,̃ݽ֪Rc`wϵ,ÿW֪RcMп,ĶՓ̌W͌`Ӗ϶,l]WČWԺ̈́ԡ@ŇWڌWڌ`֪R,õBWIJ
3.2 ʽ̌W
ʽ̌W̎vnoԌW_vnԼoԼoһŇWͨ^ԓ,nϹͬоӑՓ̌W,ʹ̎͌W֮gW͌W֮gȡLa,{WČWeO,ʹWɡҪҌW׃ɡҪWĶӏˌWČWdȤͬrҲԌW
3.3 Ƚ̌W
ՓԏĽ̌W,lWՓ֪R͌Hе^w{͡:OSIߌģ͵,һϺ_RQ^̡龰OʹWwʲôҪoWjֳ@߂ӴҪĿW֪@ģʹڵx,ÿһӵԔ^ĽB
3.4 ̌W
̌W,ӋCWjn̵Ľ̌W^,ͬS|w̫WհlNWQC·ȾWjOᵽnϻֱӌW,ՌFMv⡣,ģMMһУ@W,oWjO͂ݔ|Mx@W˽ⲻͬݔ|cʹÈWjOĹܺ͑ÈwW˜ʵĺx,ʹW߂С;WjOӋWjOx
3.5 ΄ӽ̌W
̎ʹ΄ӽ̌WrҪս̌W,΄;ȻҪ͌Wͬ΄,vcyc,߀Խo΄֪RcȤ,ߌWČWdȤ;ͬrҪڙz顢O΄ɵr,Д;Ҫƶһ^u֘˜vDNSϵyr,IM,΄,ʹW΄յͬrWDNSĹ,֪̎RMКw{Y
öŇW,ʹ̌W^cͻ,{ˌWķeOԲ֪Rͼڵ͌ӴΌW,ͨ^̎vںԼľ^^õn̻;иߌӴΌW,WS^ȥ˽]յ֪Rͼ,ˌӋCJRc˽⡣
4 ҕ̌WYԴ콨O
ڡӋCWjnnr,̎܌ycv,Ҳ֪Rc㵽,ԓnҪMɲֵĽ̌WYԴ콨OҪԾ@҂ڳַn̽̌WݼWĻA,_l˴WӋCWjǧWƽ_,Wṩn̵ȫ̰ðycvʾʾnȶNYԴ,̎ṩزĎԇ}ȂnYԴ
̌WYԴĽOʹ̌WݵdwĆһ|Ľ̲ýw̌WYԴlչ,̌WҲԽ̎ԌWD׃ͨ^YԴ,WԸIJԌWԃķʽWP,֪Rc,ͬrҲ呟ˌWԌW,MˌWceO
5 YZ
BWܵġӋCWjn,҂؟Ҳx̌Wwϵ,ϣMһӴ̸ĵĴ,ԸƬFн̌WIJY,ҽYϮǰwƸĸ,ڽ̌Wݡ̌W̌Wֶ̌WY鼰YԴ콨OȷMв̽cо,ŬB|Ą˲
īI
[1] .ӋCWǰWо[J].ؑc]늌WԺW(ƌW),2004(6).
[2] Y.ӋCIӋCWjn̽̌W̽ӑ[J].ӋC,2009(24).
[3] ܽ,m.ӋCWjn̽̌Wĸо[J].,2005(34).
[4] ,KС.ӋCWjǧW˼[J].Ƽ,2007,12: 149150.
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