IGMP snooping: pfungwa uye images

Kuti kubatana mune IP-nodes boka samambure mano uye routers vanoshandisa IGMP Protocol. Internet Group Management Protocol Rinotarisira multicast (boka) date hutachiwana network. It riri pomumbure pamwero uye yeGmail.END_STRONG kombiyuta rinobatanidza veko router wokushandura humboo pakati pavo. Zvadaro multicast motokari rinotungamirirwa vamwe vatengi kuburikidza pimu Protocol. It chinobatanidza yomunharaunda router kusvika kure. Kuburikidza kushandiswa IGMP samambure pfuma dzinoverengeka mafomu (paIndaneti mitambo, kudirana vhidhiyo) inogona kushandiswa zvinobudirira.

Sarudzai motokari nhepfenyuro dzimwe interfaces kubvumira kushandiswa IGMP snooping ushande. Chii? Izvi muitiro IGMP-Tracking zvikumbiro kubva vatengi (wehondo) kuti bhizimisi (multicast routers).

Pfungwa uye chinangwa IGMP snooping

In Chirungu ari snooping rinoreva "eavesdropping". Kana kusashanda, ari zvenguva rezvebonde mudziyo (router kana mudziyo) anotanga kuongorora kupararira zvose mashoko omumasherufu akatakurwa pakati yeGmail.END_STRONG makombiyuta kwakabatana kwazviri, uye routers, kununura multicast motokari. Kana Detective kukumbira kubatana zviri kuitwa chiteshi zvakabatana inodzidzisa (yeGmail.END_STRONG), iri pakatarisana ezvinhu (Siyai Chikumbiro) runoenzanirana chengarava riri dzadzimwa kubva boka.

Most communicators IGMP snooping basa inowanika, asi kunoda pre-activation.

Sei kuongorora Network motokari?

Multicast-motokari hunogona kutapukira kusanganisira makombiyuta, kwete kurifarira. Izvi zvinonzi nhepfenyuro retransmission. Kurudzivisa, kuderedza mutoro pamusoro pemambure uchishandisa IGMP snooping. Panguva iyoyowo, kwakadai mupise zvinoda okuwedzera kuyeukwa zvinodyiwa uye anowedzera mutoro pamusoro mudziyo. Zvisinei, izvozvo vanonzi.

Kana mudziyo anotanga wokushandura multicast motokari vose ayo zvengarava, ipapo:

• izvi hazvina maturo;
• Matambudziko angamuka mubasa wokupedzisira wacho (zvakarukwa mudziyo), kumanikidzwa kugadzirisa guru chokubuda basa mashoko.

Kuti tidzivise mamiriro ezvinhu akadaro, hapana IGMP snooping chinhu anovandudza zvikuru kushanda rose network. Unozvitaura zvinodiwa nomumbure (wechitatu) sandara uye nokudaro optimizes mugero (wechipiri) Hazvizivikanwi date chinja.

The kwebasa rinofanira wiretapping shanda

Kuti arambe multicast-motokari, unofanira kutanga vakwanise IGMP snooping akarimisa pachako. Funga sei kuita izvi communicators D-Link apo pakutevedzera multicast date hutachiwana zano. Zvikwata kunatsiridza Network wiretapping:

Kuti haabatanidzi chiteshi chengarava kubva boka pomumbure kana mudziyo akagamuchira Leave chikumbiro kubva nemhosva, shandisa IGMP Snooping Fast Leave chaitika. Kunoitawo kuti kumisa kupararira zvisingakoshi mashoko Rwako mhiri samambure aine maonero kuti rikurumidze oparesheni. Kuti akwanise ichi inoti, shandisa anotevera murayiro:

Rinoshandiswa nenzira chiitiko kuti unofanira vakwanise inonzwika apo multicast Kuparadzirwa chinja ane chokuita raiva pedyo nebundu pokuita date hutachiwana.

Types IGMP-wiretapping

IGMP snooping basa ingava pusa uye tichishingaira. In chii munzira?

1. Pusa haiwanikwi motokari, asi kungoti anongoti nanga-nanga nayo.
2. Active - anoteerera uye mupise Data omumasherufu kuderedza Batsiranai mabasa ose router boka.

The mhando Implementation kuti basa iri rechipiri iri rinonyanya vaifarira, sezvo anobvumira kurerutsa uwandu mashoko pachishandiswa filtration kubatana zvikumbiro kuna router uye kubva pairi.

Functionality IGMP snooping-Kurukura kunobatsira kuderedza mutoro pamusoro pemambure kuburikidza club nayo kurongedza mashoko mukutsinhana pakati rinobatsirwa (vemo routers) uye vanoshandisa (yeGmail.END_STRONG makombiyuta) multicast motokari.