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The time now is 26.04.2024 - 12:00


Sietove testy - benchmark siete

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keo
2 Post subject: Sietove testy - benchmark siete  PostPosted: 05.09.2006 - 13:02 #39773
Ucen


Joined: Aug 28, 2006
Posts: 860

ALL:
mate nieco vyskusane, ako otestovat siet napr. fast ethernet, gigabit ethernet, co sa tyka priepustnosti siete, odozvy - switchov/sietovych kariet pre TCP/IP pri zatazi ? Napr. nejakym programom pre Windows, alebo utilitkou spustajucou sa z CD,FDD - nabootovanim mimo hlavneho OS ?
 
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LaCosta
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 05.09.2006 - 14:02 #39776
Ucen


Joined: Jún 24, 2003
Posts: 598
Location: /dev/null
mozes skusit napr. netbench .. najdes ho na sanet.sk ..
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 05.09.2006 - 14:31 #39779
Ucen


Joined: Aug 28, 2006
Posts: 860

Pisu, ze klient funguje i pod Win9x a akosi sa mu nedari...

I pod W2K ma klient problemy. Server sa spusti.
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 08:57 #45128
Ucen


Joined: Aug 28, 2006
Posts: 860

ALL: ako sa da otestovat switch /okrem nasadenia do realnej prevadzky/ na nejaku extremu zataz ?

Druha otazka: ako sa chranit v sieti pred flood pingom ?
 
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si
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 09:19 #45130
Majster


Joined: Jan 12, 2003
Posts: 4250
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keo: ziaden laboratorny test ti to neotestuje tak ako realna pravedzka Smile
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 09:29 #45132
Ucen


Joined: Aug 28, 2006
Posts: 860

si
Dobre, ale ked mas relanu prevadzku minimalnu a sporadicky sa vyskytne vacsia zataz napr. raz za mesiac-dva, tak sa to dost zle a dlho testuje....

Napr. co som zistil, ze pri flood pingu bola siet v pohode, switch to stihal, ale uz ako DoS sa chovala administracia switchu cez SSH,HTTPS....
 
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si
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 09:54 #45133
Majster


Joined: Jan 12, 2003
Posts: 4250
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keo: k tomu si este prirataj rozne divoke kable ktore na stole obvykle nemas, kolisanie napajacieho napatia, blbe teploty a taktiez v laboratioru nevygenerovatelnu strukturu datoveho toku.... (ale to ked tam mas take podmienky ze ti tam dokopy nic nelozi bud len rad...)
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 10:40 #45135
Ucen


Joined: Aug 28, 2006
Posts: 860

Kabelaz robim sam a premeriavam ju certifikacnym merakom.
Teraz som kupoval switche, ktore maju meranie poruch kabelaze na portoch.

Kolisanie napatia riesia vo vacsine pripadov UPSky /line interactive/. Tam kde nie su, su aspon odskusane switche, ktore nemrznu pri vypadkoch.
Teploty - to moc neovplyvnuju. Pri vybere switchov a zariadeni a umiestnovani sa kalkuluju so zariadeniami, ktore dane teploty zvladaju.

Datovy tok - sa da odsimulovat medzi zariadeniami.
Horsie je to len so simulaciou zatazenia switchu, keby chcel clovek otestovat, kam az moze ist.
Napr. preto, ze ak by sa zavadzalo VoIP, aby nedochadzalo k problemom.
 
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si
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 10:43 #45136
Majster


Joined: Jan 12, 2003
Posts: 4250
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keo: datovy tok v laboratoriu nevygenerujes ani ked sa poseries rovnaky ako ked tam zapojis zo 50 zakaznikov...
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 10:54 #45138
Ucen


Joined: Aug 28, 2006
Posts: 860

SI
mne sa jedna o odhalenie napr. ze tento switch v tomto uzle pri urcitej zatazi uz je problem a je lepsie sa poohliadnut po nejakom inom.
 
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hanaks
Post subject: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 20:45 #45161
Basic


Joined: Aug 25, 2005
Posts: 77

keo wrote: ›ALL:
mate nieco vyskusane, ako otestovat siet napr. fast ethernet, gigabit ethernet, co sa tyka priepustnosti siete, odozvy - switchov/sietovych kariet pre TCP/IP pri zatazi ? Napr. nejakym programom pre Windows, alebo utilitkou spustajucou sa z CD,FDD - nabootovanim mimo hlavneho OS ?


existuju na to seriozne meracie pristroje. jednym z nich je napr. JDSU (Acterna) HST3000. Pristroj dokaze generovat datovy tok na L2 aj L3 a vie vytvorit aj L2/L3 slucku (prehadzuje L2/L3 src a dst adresy).
Dalsia moznost je skusit pohladat vhodny sw a pouzitim vykonneho hw generovat potrebny datovy tok. Takto si testoval svoju chrbticovu siet aj SANET. Popis je niekde na ich www.
 
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pixall
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 02.02.2007 - 21:05 #45171
Majster


Joined: Okt 21, 2003
Posts: 4247

keo wrote: ›SI
mne sa jedna o odhalenie napr. ze tento switch v tomto uzle pri urcitej zatazi uz je problem a je lepsie sa poohliadnut po nejakom inom.


neviem co riesis... v cenovej kategorii do niekolkych tisicov korun je vsetko o tom istom. ked pojdes do desattisicov korun za switch, tak tam uz mozes ocakavat viac. ale myslim ze ked dojdes k tomu ze budes ochotny davat za kazdy switch taketo cisla tak budes riesit ani nie tak to aby to zvladal, ale to aby si pakety nelietali tam kam nemusia tj budes tam pchat napriklad routre.
 
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keo
Post subject: RE: Sietove testy - benchmark siete  PostPosted: 22.03.2007 - 16:02 #48144
Ucen


Joined: Aug 28, 2006
Posts: 860

ALL: neviete nahodou, na akom principe pracuje network benchmark v Sisoft Sandre ?
 
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