Networking and Communication Issues in IT Lecture 6

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Sup­port this Page: http://amzn.to/2kgnzrf
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Net­work­ing and Com­mu­nic­a­tion Issues in IT Lec­ture 6

ISO OSI Ref­er­ence Mod­el

Data link lay­er

- Recog­nize frame bound­ar­ies

- Con­trol of data syn­chron­isa­tion

- Error hand­ling

Net­work lay­er (lay­er 3)

- Com­mu­nic­a­tion sub­net lay­er

- Rout­ing of pack­ets

Aim – cell based

Eth­er­net 1532 bytes

Token rings rout­ing

FDDI I/O driver

Are frame based

Vir­tu­al LAN’s – found in switched LAN’s.

Switched and shared con­nec­tion – switched – Each and every node has vir­tu­al con­nec­tion to node.

Shared – shar­ing band­with

MAC address

IP address

ISO OSI Ref­er­ence Mod­el

Trans­port lay­er (Host-to-Host)

- Accept data from the ses­sion lay­er

- Split it up into smal­ler units

- Pass it up to the net­work lay­er

- Cre­ates a net­work con­nec­tion for each trans­port con­nec­tion required by the ses­sion lay­er.

- Determ­ines type of ser­vice to provide to the ses­sion lay­er.

- Partly imple­men­ted at the host oper­at­ing sys­tem (trans­port sta­tion).

ISO OSI Ref­er­ence Mod­el

Ses­sion lay­er (lay­er 5)

- User’s inter­face to the net­work

- The lay­er that the user must nego­ti­ate to estab­lish a con­nec­tion with a pro­cess on another host.

- Estab­lish ses­sion address

- Con­vert ses­sion address into a trans­port address

ISO OSI Ref­er­ence Mod­el

Ses­sion lay­er

- Set trans­port con­nec­tion

- Provide authen­tic­a­tion

o The oper­a­tion of set­ting up a ses­sion between two pro­cesses is called “binding”

- Ses­sion man­age­ment

- Recov­ery of ses­sion

ISO OSI Ref­er­ence Mod­el

Present­a­tion lay­er (lay­er 6)

- Data com­pres­sion

- Data encryption/decryption


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Tap­poġġ­ja dan Paġna: http://amzn.to/2kgnzrf
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Netwerking u Kwist­jon­iji­et Komunikazz­joni fl-IT Lec­ture 6
ISO Mudell Ref­er­en­za OSI
saff tad-data link

- Jir­rikonoxxu kon­fini qafas

- Kon­troll ta sink­ronizza­zz­joni tad-data

- Tqandil Żball

 

 

sezz­joni ta net­works (saff 3)

- Saff sub­net Komunikazz­joni

- Rotot ta pakket­ti

 

 

Jim­mir­aw â € ““ċel­lu­la bbażati

Eth­er­net 1532 bytes

ċrieki token rot­ta

FDDI I / O sewwieq

 

Huma frame ibbażat

 

Virt­wali Lana € ™ s â € ““mis­jub fl qal­bu lana € ™ s.

 

Kom­mut­azz­joni u maqsuma kon­ness­joni â € ““mixgħul â €”” Kull node għan­du kon­ness­joni virt­wali biex node.

 

“Band­width qsim maqsuma â €

 

ind­i­rizz MAC

ind­i­rizz IP

 

ISO Mudell Ref­er­en­za OSI
Saff Tras­port (Ospit­anti to-Ospit­anti)

- Aċċetta dejta mill-saff ses­s­joni

- Maqsuma it up f’unitajiet iżgħar

- Pass f’idejn l-sezz­joni ta net­works

- Toħ­loq kon­ness­joni tan-netwerk għal kull kon­ness­joni tras­port meħtieġ mill-saff ses­s­joni.

- Jid­de­termina tip ta ser­vizz li jip­provdi lis-saff ses­s­joni.

- Impli­ment­at Par­z­jalment lejn is-sis­tema oper­at­tiva ospit­anti (stazz­jon tras­port).

 

 

ISO Mudell Ref­er­en­za OSI
saff Ses­s­joni (saff 5)

- Userâ € ™ s inter­face għan-netwerk

- Is-saff li l-utent irid jin­negoz­ja biex jistabbilixxu rab­ta ma proċess fuq ieħor ospit­anti.

- Tistabbilixxi ind­i­rizz ses­s­joni

- Ikkon­ver­ti ind­i­rizz ses­s­joni fi ind­i­rizz tat-tras­port

 

 

ISO Mudell Ref­er­en­za OSI
saff ses­s­joni

- Kon­ness­joni tras­port Set

- Tip­provdi awtentikazz­joni

o L-operazz­joni tat-twaqqif ta ses­s­joni bejn żewġ proċessi tis­se­j­jaħ € € œbind­ingâ

 

 

- Ġest­joni Ses­s­joni

- Irkupru ta ses­s­joni

 

 

ISO Mudell Ref­er­en­za OSI
saff Preżentazz­joni (saff 6)

- Kom­press­joni Dejta

- Ħabi ta data / deċi­frar

 

 


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http://amzn.to/2kgnzrf: hierdie onder­steun­ing
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Netwerke en Kom­munikasie Kwessies in IT Les­ing 6
ISO OSI-ver­wys­ings­mod­el
Data­ver­bind­ings­laag

- Erken raam grense

- Beheer van data sin­chron­isasie

- Hanter­ing van foute

 

 

Netwerk­laag (laag 3)

- Kom­munikasie sub­net laag

- Rout­ing van pakkies

 

 

Doel â € ““sel gebaseer

Eth­er­net 1532 gre­pe

Tek­en ringe rout­ing

FDDI I / O bestuurder

 

Is raam gebaseer

 

Vir­tuele Lana € ™ s â € ““in gevind aangeskakel Lana € ™ s.

 

Aangeskakel en gedeelde ver­bind­ing â € ““aangeskakel â €”” Elke node het vir­tuele ver­bind­ing met knoop.

 

Gedeel â € ““deel band­wydte

 

MAC-adres

IP adres

 

ISO OSI-ver­wys­ings­mod­el
Trans­port­laag (gasheer-tot-gasheer)

- Aan­vaar data van die ses­sie laag

- Ver­deel dit in klein­er een­hede

- Slaag dit tot die netwerk laag

- Skep n netwerk­ver­bind­ing vir elke ver­vo­er verb­and vereis deur die ses­sie laag.

- Bepaal tipe diens aan te bied aan die ses­sie laag.

- Gedeel­te­lik geïm­ple­men­teer by die gasheer bedry­f­s­telsel (ver­vo­er stas­ie).

 

 

ISO OSI-ver­wys­ings­mod­el
Ses­sie laag (laag 5)

- USERA € ™ s kop­pel­vlak tot die netwerk

- Die laag wat die gebruiker moet onder­han­del om n verb­and met n proses op n ander gasheer te vestig.

- Stel ses­sie adres

- Skakel ses­sie adres in n ver­vo­er-posad­res

 

 

ISO OSI-ver­wys­ings­mod­el
ses­sie laag

- Ver­vo­er Stel verb­and

- Voor­si­en veri­fikasie

o Die werking van die oprigt­ing van n ses­sie tussen twee prosesse gen­oem â € œbind­ingâ €

 

 

- Ses­sie bestuur

- Ver­haal van ses­sie

 

 

ISO OSI-ver­wys­ings­mod­el
Aan­bied­ing laag (laag 6)

- Data kom­pressie

- Data enkrip­sie / dekrip­sie

 

 


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Përkra­heni këtë Faqe: http://amzn.to/2kgnzrf~~HEAD=dobj
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Net­work­ing dhe çështjet e komunikim­it në IT Leksion 6
Mod­el ISO OSI Ref­er­ence
shtresa Lid­hje të dhënave

- Njohin kufijtë korn­izë

- Kon­trol­li i sink­ron­iz­i­m­it të të dhënave

- Tra­j­tim­in Error

 

 

Shtresa e rrjetit (shtresa 3)

- Shtresa sub­net Komunikimi

- Rout­ing i paket­ave

 

 

Syn­o­jnë â € ““qel­izë bazuar

Eth­er­net 1532 bytes

Unaza Token kurs

FDDI I / O shofer

 

Janë të bazuara frame

 

Vir­tuale Lana € ™ s â € ““gjen­det në kaloi Lanës € ™ s.

 

Kaloi dhe ndanë lid­hje â € ““kaloi â €”” Secila dhe çdo nyje ka lid­hje vir­tuale në nyje.

 

Shared â € ““band­width shar­ing

 

Adresa mac

adresa IP

 

Mod­el ISO OSI Ref­er­ence
Shtresa e trans­portit (Host-to-Host)

- Prano dhën­at nga shtresa e seancës

- Split atë në njësi më të vogla

- Pass atë deri në shtresën e rrjetit

- Kri­jon një lid­hje të rrjetit për çdo lid­hje të trans­portit të kërkuar nga shtresa e seancës.

- Për­cak­ton llojin e shërbim­it të sig­uru­ar në shtresën e seancës.

- Zbatu­ar pjesërisht në sis­temin oper­at­iv të presë (sta­cioni i trans­portit).

 

 

Mod­el ISO OSI Ref­er­ence
Shtresa Sesioni (shtresa 5)

- Usera € ™ s ndër­faqe me rrjet­in

- Shtresa që për­dor­uesi duhet të nego­ciojë për të krijuar një lid­hje me një pro­ces në një tjetër host.

- Krijimi adresën sesion

- Con­vert adresë seancë në një adresë të trans­portit

 

 

Mod­el ISO OSI Ref­er­ence
shtresa Ses­sion