Ερωτηση για segmented download

[Nik0s]

Να ερωτησω το εξης,

 

Ενας download manager κατεβαζει με χρηση segmented download,δηλαδη τημαματικη μεταφορτωση ενα αρχειο.

 

Ας πουμε το debian.iso apo ton ftp server tou ntua σε 10 segments

 

To αρχειο αυτο για να κατεβει σημαινει πως:

 

α) ο download manager θα επιχειρησει ας πουμε 10 connection connection sto ntua?

 

β) θα επιχιρησηει 1 connection attempt sto ntua + 9 connection attempts se διαφορετικους per segment mirrors?

 

γ) θα εξαντλησει τα connection attempts τα οποια δυναται στον ntua + θα επιχειρει νεα μεγιστα connection attempts σε καθε mirror ανα segment?

 

Τι απο τα 3 συμβαινει?

και υπαρχει download manager που να κανει το γ) ?

 

Ευχαριστω.

[100 010 00]

oswn afora p2p programmata kai ftp downloads pou anoigoun polles syndeseis taftoxrona isxyei to prwto me tin proipothesi oti exeis xp sp2 pou epitrepoun 10 simultaneous connections to TCP/IP tous.Gia na isxisei to trito tha prepei na spaseis to TCP.sys me afto edw to ergaleio kai na tis kaneis 50 oi kai perissoteres. prosekse mi tis kaneis polles kai mpoukwnei to router sou. Tha deis megali diafora sta torrents kai p2p

[Nik0s]

oswn afora p2p programmata kai ftp downloads pou anoigoun polles syndeseis taftoxrona isxyei to prwto me tin proipothesi oti exeis xp sp2 pou epitrepoun 10 simultaneous connections to TCP/IP tous.Gia na isxisei to trito tha prepei na spaseis to TCP.sys me afto edw to ergaleio kai na tis kaneis 50 oi kai perissoteres. prosekse mi tis kaneis polles kai mpoukwnei to router sou. Tha deis megali diafora sta torrents kai p2p

 

 

nai to exw xrisimoppoihsei kai sto parelthon auto to app, poly kalo.

 

Xwris auto to app mono 10 syndeseis tautoxrona mporei na exeis anoixtes pros enan server? parapanw den mporoun ta xp?

 

H mipws epixeiroun to poly 10 simultaneous connection per second?

 

Ti apo ta 2 symvainei?

 

Na to vale to app alla twra exw egkatastiseis WinXP SP3 RC1

tha doulepsei i einai mono gia sp2?

[100 010 00]

mono 10 synolo kai oxi per second sta sp2 kai twra sp3 ta proigoumena eixan anoixto tcp.sys, balto tha doulepsei, eksallou tha sou deiksei amesws an allaksan ta connections kai posa exeis. bale to poly 60 alliws an katebazeis kana torrent h p2p tha sou liwnei to internet kai tha thes ksempoukwma tou router (on/off)

[Nik0s]

mono 10 synolo kai oxi per second sta sp2 kai twra sp3 ta proigoumena eixan anoixto tcp.sys, balto tha doulepsei, eksallou tha sou deiksei amesws an allaksan ta connections kai posa exeis. bale to poly 60 alliws an katebazeis kana torrent h p2p tha sou liwnei to internet kai tha thes ksempoukwma tou router (on/off)

 

nai tha to dokiamsw arkei na mhn to exoun kleidwsei to tcpip.sys sta sp3.

 

otan leme 10 simultaneous connection ennoume 10 pros ena sygektimeno host etsi?

[Thresh]

to sp2 den limitarei ta tcp connections se 10 alla ta tcp connection ATTEMPTS se 10...megalh diafora...

[100 010 00]

nai tha to dokiamsw arkei na mhn to exoun kleidwsei to tcpip.sys sta sp3.

 

otan leme 10 simultaneous connection ennoume 10 pros ena sygektimeno host etsi?

 

 

a)kai pros to sygkekrimeno kai pros ta eksw aneksartitws.... apla kathe fora pou kaneis ena echo=reply pros kapou kai perimeneis aknolwedgment gia na syndetheis

 

Attemps=swsto

[Nik0s]

a)kai pros to sygkekrimeno kai pros ta eksw aneksartitws.... apla kathe fora pou kaneis ena echo=reply pros kapou kai perimeneis aknolwedgment gia na syndetheis

 

Attemps=swsto

 

giati na ta kanouem 50 poios o logos?

 

asy syndthei o downlaod manager me 10 conne sto ntua me alla 0 se n allo mirror kai paei legontas....

 

den ginetai etsi douleia?

 

den katalava to a) pou eipes

[Nik0s]

to sp2 den limitarei ta tcp connections se 10 alla ta tcp connection ATTEMPTS se 10...megalh diafora...

 

ανα δευτερολεπτο αυτο?

 

δηλαδη εσυ λες πως σε εναν host δεν συνδεομαστε μονο 10 φορες αλλα μπορει και 200 αν ειναι εφικτο ε?

[Thresh]

to sp2 kanei limit tis prospa8eies oxi ta connections...

[Nik0s]

to sp2 kanei limit tis prospa8eies oxi ta connections...

 

ara an epitrepei 10 attempts kai oxi parapanw, 10 tha einai kai ta connections. swsta?

 

den mporei na einai 100 gia paradeigma...

[Thresh]

oxi...giati apla kanei panw apo 1 attempt kai etsi oi syndeseis au3anontai(10+10+10+10 ktlp ktlp me ka8e attempt)...den menoun pote 10...

[Nik0s]

oxi...giati apla kanei panw apo 1 attempt kai etsi oi syndeseis au3anontai(10+10+10+10 ktlp ktlp me ka8e attempt)...den menoun pote 10...

 

den katalava.

[Thresh]

epeidh den to egrapsa kala/swsta to prohgoumeno post...

skepsou oti se ka8e attempt prospa8ei na synde8ei me X connections...

syndeetai...

next attempt prospa8ei me alla Y connections...

syndeetai...

ta Y connections den mpainoun sthn 8esh twn X alla a8roizontai...

sta attempts yparxei to limit oxi sta connections...

 

twra an den katalavaineis auto den mporw na to pw pio apla...

to 8ema pantws einai oti DEN YPARXEI limit sta connections...ara mhn asxoleisai me auta...

 

twra gia thn erwthsh tou prwtou post...isxyei to trito...

[Nik0s]

epeidh den to egrapsa kala/swsta to prohgoumeno post...

skepsou oti se ka8e attempt prospa8ei na synde8ei me X connections...

syndeetai...

next attempt prospa8ei me alla Y connections...

syndeetai...

ta Y connections den mpainoun sthn 8esh twn X alla a8roizontai...

sta attempts yparxei to limit oxi sta connections...

 

twra an den katalavaineis auto den mporw na to pw pio apla...

to 8ema pantws einai oti DEN YPARXEI limit sta connections...ara mhn asxoleisai me auta...

 

twra gia thn erwthsh tou prwtou post...isxyei to trito...

 

egw plai nomizw oti 1 attempt epixeirei na antistoixthei se 1 connection kai oxi 1 attempt se polla connections.