modul 3 - vlan.ppt

8/19/2019 Modul 3 - VLAN.ppt

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VLANVLAN(Virtual LAN)(Virtual LAN)

Editor:Editor:

Sigit WasistaSigit WasistaPENS-ITSPENS-ITS

20082008


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Pengenalan VLAN• ntu! "e"a#a"i "enga$aVLAN diguna!an se%ara luas&"a!a $er#ati!an ga"'ardisa"$ing ini

• Ada !o"unitas !e%il !a"$usdengan student dande$arte"ent ter$isa# "enadidua LAN

• Ini 'e!era dengan 'ai! !arena

!eduan*a 'e!era $ada aringann*a sendiri-sendiri


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+e'era$a ta#un !e"udian• +agai"ana "engatur $enggunaan aringan $ada"asing-2 gedung,

• ea"anan& 'and.idt# dan $eru'a#an aringan


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Solusi• VLAN "e"ung!in!an untu! "e"'uat gru$se%ara logi!a $ada $iranti se$erti"e"$un*ai aringan sendiri dan da$at

saling !o"uni!asi dengan VLAN lain• Se#ingga se"ua user da$at di'uat!an$e"'agian 'erdasar!an /ungsi& de$arte"endan ti" $ro*e!

• isini di'entu! dua VLAN *aitu studen dande$arte"en


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etail VLAN• Suatu VLAN se%ara logi!a "e"isa#!an IP "enadi

su'net.or!• VLAN "e"ung!in!an 'an*a! aringan dan su'net IP "enadisatu dala" aringan

• 1onto#n*a disini ada aringan dengan tiga !o"$uter ntu!da$at !o"uni!asi "a!a #arus "e"$un*ai IP dan VLAN *angsa"a S.it%# di!on/igurasi VLAN dan tia$ $ort $ada VLAN

#arus ditandai se'agai VLAN• Port *ang di!on/igurasi dise'ut a%%ess $ort• ua !o"$uter *ang tersa"'ung $ada s.it%# *ang sa"a 'elu"

tentu da$at 'er!o"uni!asi• Sedang!an dua $iranti *ang ter$isa# se%ara aringan "a!a

untu! da$at 'er!o"uni!asi #arus dile.at!an router (la$isan

)• VLAN tida! "e"erlu!an 'an*a! aringan dan su'net $ada

s.it%#


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euntungan VLAN• ea"anan• Peng#e"atan

• 3engurangi +road%ast• 3ening!at!an e/isiensi sta// IT (40

e$t& 20 Student& 0 5uest)

• Pro*e! seder#ana6 "anae"ena$li!asi "uda#


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ara!teristi! VLAN


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Ti$e VLAN• ata

• e/ault

• Nati7e• 3anage"en


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data VLAN• A data VLAN is a VLAN t#at is %on/igured to %arr* onl*user-generated tra//i% A VLAN %ould %arr* 7oi%e-'asedtra//i% or tra//i% used to "anage t#e s.it%#& 'ut t#istra//i% .ould not 'e $art o/ a data VLAN It is %o""on$ra%ti%e to se$arate 7oi%e and "anage"ent tra//i% /ro"data tra//i%


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e/ault VLAN• All s.it%# $orts 'e%o"e a "e"'er o/ t#e de/ault VLANa/ter t#e initial 'oot u$ o/ t#e s.it%# a7ing all t#e s.it%#$orts $arti%i$ate in t#e de/ault VLAN "a!es t#e" all $arto/ t#e sa"e 'road%ast do"ain T#is allo.s an* de7i%e%onne%ted to an* s.it%# $ort to %o""uni%ate .it# ot#erde7i%es on ot#er s.it%# $orts T#e de/ault VLAN /or 1is%os.it%#es is VLAN 4


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Nati7e VLAN• A nati7e VLAN is assigned to an 80249 trun! $ort An

80249 trun! $ort su$$orts tra//i% %o"ing /ro" "an*VLANs (tagged tra//i%) as .ell as tra//i% t#at does not%o"e /ro" a VLAN (untagged tra//i%)

• T#e 80249 trun! $ort $la%es untagged tra//i% on t#enati7e VLAN In t#e /igure& t#e nati7e VLAN is VLAN

• ntagged tra//i% is generated '* a %o"$uter atta%#ed to as.it%# $ort t#at is %on/igured .it# t#e nati7e VLAN

• Nati7e VLANs are set out in t#e IEEE 80249 s$e%i/i%ationto "aintain 'a%!.ard %o"$ati'ilit* .it# untagged tra//i%%o""on to lega%* LAN s%enarios ;or our $ur$oses& a nati7eVLAN ser7es as a %o""on identi/ier on o$$osing ends o/ atrun! lin! It is a 'est $ra%ti%e to use a VLAN ot#er t#anVLAN 4 as t#e nati7e VLAN


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3anage"ent VLAN• A "anage"ent VLAN is an* VLAN *ou %on/igure

to a%%ess t#e "anage"ent %a$a'ilities o/ as.it%#• VLAN 4 .ould ser7e as t#e "anage"ent VLAN i/

*ou did not $roa%ti7el* de/ine a uni


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on/igurasi VLAN Stati!


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modul 3 - vlan.ppt

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