Ba'c no'i ra^'t co' ly' !!!
Kho^ng pha?i la` em dda~ kho^ng nghi~ dde^'n chuye^.n dda'nh ddi.a chi?,
ddi.nh tuye^'n... theo bu+o+'c so'ng.. nhu+ng lu'c ddo' em la.i nghi~
ra(`ng.. o+? mo^.t go'c na`o ddo' cu?a ma.ng, va^~n pha?i la` ddie^.n... vi`
chi? co' the^? la` ddie^.n mo+'i thu+.c hie^.n ddu+o+.c mo^.t so^' chu+'c
na(ng na`o ddo' (ma` ca^`n ddo.c no^.i dung tho^ng tin be^n trong go'i tin
cha(?ng ha.n) co`n nhu+ ca'ch ma` ba'c no'i, co' the^? cu~ng kha? quan ne^'u
hoa.t ddo^.ng tre^n pha^`n back-bone cu?a ma.ng, cu+' theo ca'ch nghi~ tu+.
nhie^n ho+n mo^.t chu't.. co' the^? port number (TCP/UDP) sau na`y cu~ng
ddu+o+.c dda.i die^.n ba(`ng mo^.t bu+o+'c so'ng co+~ <n> nano me't na`o
ddo' !!
ngoa`i le^` qua' ro^`i, tho^i\.. em stop dda^y ! ca'm o+n ba'c James nhe'
----- Original Message -----
From: "James Nguyen" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, June 03, 2005 10:53 AM
Subject: Re: [Vietlug] Re:fiber optic switch
On 6/5/05, Nguyen Thanh Bien <[EMAIL PROTECTED]> wrote:
Em va^~n chu+a tha^'y ca^u tra? lo+`i !! ca'i ddo' kho^ng bie^'t co' ne^n
du+o+.c go.i la` switch kho^ng ?? nhu+~ng ti'nh na(ng cu?a switch hoa.t
ddo^.ng o+? layer 2 (OSI Model) chu+a tha^'y dda^u !!! hay ca'i na`y go.i
la` hub ??
em co' sai gi` hay ddo.c ma` kho^ng hie^?u kho^ng nhi? ??
PS: Em va^~n ddang ba?o thu? vo+'i y' kie^'n cu?a mi`nh: la`m sao ma`
kho^ng
chuye^?n ve^` ddie^.n ma` va^~n cha.y ddu+o+.c nhu+ switch nhi?, vlan
the^'
na`o, trunking the^' na`o, chu+a ke^? inter-vlan routing the^' na`o
nu+~a\....
Ca'ch dda(.t va^'n dde^` cu?a ba'c ra^'t thie^'u tu+. nhie^n.
Ngu+o+`i bi`nh thu+o+`ng, tu+. nhie^n se~ ho?i: ta.i sao
pha?i chuye^?n ve^` ddie^.n dde^? routing, switching trong khi
L1 thi` du`ng optic? Routing luo^n theo kie^?u optic co' pha?i
nhanh ho+n kho^ng?
Co' ha(?n mo^.t nga`nh Optical Networking chuye^n suy nghi~
nhu+~ng gia?i pha'p cho va^'n dde^` na`y. Dda.i kha'i la`
truye^`n du+~ lie^.u tre^n ca'c ke^nh pha^n bie^.t ba(`ng
bu+o+'c so'ng a'nh sa'ng, routing cu~ng du+.a va`o bu+o+'c so'ng.
Ca'c ba'c na`y hie^.n co`n bi' nhie^`u va^'n dde^` ve^` ca'ch thu+'c
do^`n du+~ lie^.u le^n ca'c bu+o+'c so'ng, ve^` to^'c ddo^. switching,
ve^` bo^. nho+' (buffer) cho a'nh sa'ng, ve^` lu+.a cho.n bu+o+'c so'ng
khi qua ca'c nu't trung gian, va` nhie^`u va^'n dde^` kha'c.
Nhi`n chung thi` tu+o+ng lai cu?a ki~ thua^.t na`y kha' tu+o+i sa'ng.
Nhu+ng ma` /me kho^ng ra`nh nhu+~ng mo'n na`y, chuye^.n
cu~ng kho^ng lie^n quan gi` vo+'i Linux. Ba'c muo^'n ti`m hie^?u
the^m cho mo+? mang thi` search: lamda switching, GMPLS,
hoa(.c va`o ca'c die^~n dda`n network.
--
James Nguyen, Phedora
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