IGMP snooping: ra'ayi da kuma yadda ake amfani da

Don shiga cikin IP-nodes kungiyar na cibiyar sadarwa da na'urorin da kuma magudanar amfani da IGMP yarjejeniya. Internet Group Management layinhantsaki kulawa multicast (kungiyar) watsa bayanai networks. An located a cibiyar sadarwa matakin da abokin ciniki kwamfuta ta haɗu da gida na'ura mai ba da hanya tsakanin hanyoyin sadarwa a aika da bayanai tsakanin su. Sa'an nan multicast zirga-zirga directed zuwa wasu abokan ciniki ta hanyar PIM yarjejeniya. Ta haɗa gida na'ura mai ba da hanya tsakanin hanyoyin sadarwa da m. Ta hanyar amfani da IGMP cibiyar sadarwa albarkatun mai yawan aikace-aikace (online wasanni, yawo video) za a iya amfani da more yadda ya kamata.

Yanke shawara a kan zirga-zirga watsa shirye-shirye a wasu musaya ba da damar amfani da IGMP snooping aiki. Mene ne wannan? Wannan tsari IGMP-tracking buƙatun daga masu amfani da (rundunõni) zuwa kaya (multicast magudanar).

A ra'ayi da manufar IGMP snooping

A Turanci da snooping nufin "eavesdropping". Lokacin da aka kunna, tsaka-tsaki cibiyar sadarwa na'urar (na'ura mai ba da hanya tsakanin hanyoyin sadarwa ko na'urar) yana farawa don nazarin baza dukkan data fakitoci kwashe tsakanin abokin ciniki kwakwalwa da alaka cikinta, kuma magudanar, haihuwa multicast zirga-zirga. Lokacin ganowa bukatar for dangane da aka sauya tashar jiragen ruwa da alaka da mai amfani da (abokin ciniki), a gaban halin da ake ciki (Leave Request) m tashar jiragen ruwa da aka share daga kungiyar.

Mai communicators IGMP snooping aiki ne samuwa, amma na bukatar pre-kunnawa.

Me saka idanu da cibiyar sadarwa da zirga-zirga?

Multicast-zirga-zirga za a iya daukar kwayar cutar ciki har da kwakwalwa, ba su da sha'awar da shi. Wannan shi ake kira a watsa shirye-shirye retransmission. Don hana shi, don rage load a kan hanyar sadarwa ta amfani da IGMP snooping. A lokaci guda, da irin wannan tacewa bukatar ƙarin memory amfani da qara load a kan na'urar. Duk da haka, shi ne wajaba a kansa.

Idan na'urar farawa a aika da multicast zirga-zirga zuwa duk da tashoshin jiragen ruwa, sa'an nan:

• wannan tsari ne m.
• matsaloli na iya tashi a cikin aikin na karshe a tura ma (cibiyar sadarwa na'urar), tilasta rike wani babban kwarara daga ba dole ba data.

Don kauce wa irin wannan yanayi, akwai IGMP snooping alama cewa ƙwarai inganta aiki na dukan cibiyar sadarwa. Yana bayani da bukatun da cibiyar sadarwa (na uku) matakin da haka optimizes tashar (na biyu) matakin canja wurin bayanai.

A hada da wiretapping aiki

Domin ci gaba da lura da multicast-zirga-zirga, dole ne ka farko taimaka IGMP snooping da kuma kafa shi da kanka. Ka yi la'akari da yadda za a yi wannan a kan communicators D-Link lokacin da za'a aiwatar multicast watsa bayanai makirci. Teams don bunkasa sadarwa wiretapping:

Domin ware wani tashar jiragen ruwa daga cibiyar sadarwa kungiyar lokacin da na'urar ya samu iznin request daga abokin ciniki, amfani da IGMP Snooping Fast iznin aiki. Yana ba ka damar dakatar da watsa daga ba dole ba data gudana a fadin cibiyar sadarwa da wani ra'ayi zuwa wani ya fi dacewa aiki. Don a kunna wannan alama, yi amfani da wadannan umurnin:

Ana amfani da a yayin da ba ka buƙatar kunna tace multicast rarraba canza tare da wata alaka kumburi takara a watsa bayanai.

Nau'in IGMP-wiretapping

IGMP snooping aiki na iya zama duka m da kuma aiki. A wace hanya?

1. M ba tace zirga-zirga, amma kawai yana ajiye turbar da shi.
2. Active - sauraro ta kuma tacewa data fakitoci don rage workload na na'ura mai ba da hanya tsakanin hanyoyin sadarwa kungiyar.

Nau'i na biyu na aiwatar da wannan aiki ne mafi fĩfĩta, tun shi damar da ta ke domin rage adadin bayanai daukar kwayar cutar ta hanyar tacewa dangane buƙatun da na'ura mai ba da hanya tsakanin hanyoyin sadarwa da kuma kashe daga gare ta.

Aiki IGMP snooping-sadarwa taimaka rage load a kan hanyar sadarwa ta tracking shi tafiyar matakai data musayar tsakanin masu samar (na gida magudanar) da kuma masu amfani da (abokin ciniki kwakwalwa) multicast zirga-zirga.