MPLS l3 VPN yog dab tsi?
MPLS l3 VPN yog dab tsi?

Video: MPLS l3 VPN yog dab tsi?

Video: MPLS l3 VPN yog dab tsi?
Video: Overview of MPLS L3 VPN 2024, Kaum ib hlis
Anonim

Multiprotocol Label Switching ( MPLS ) Txheej txheej 3 Virtual Private Network ( VPN ) muaj ib pawg ntawm cov chaw uas muaj kev sib tshuam los ntawm ib qho MPLS tus muab kev pabcuam core network. Ntawm txhua tus neeg siv khoom, ib lossis ntau tus neeg siv khoom ntug (CE) routers txuas rau ib lossis ntau tus neeg muab kev pabcuam ntug (PE) routers.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog l3 VPN?

Txheej 3 VPN ( L3VPN ) yog hom VPN hom uas tau tsim thiab xa tawm ntawm OSI qob 3 networking technologies. Tag nrho kev sib txuas lus los ntawm lub hauv paus VPN infrastructure yog xa mus siv qob 3 virtual routing thiab forwarding cov txheej txheem. Txheej 3 VPN tseem hu ua virtual private routed network (VPRN).

Kuj Paub, yog VPN txheej 2 lossis 3? Hauv ib txheej 2 VPN , L2 ntas (feem ntau Ethernet) yog thauj ntawm qhov chaw. Hauv ib txheej 3 VPN , txhua sab ntawm kev sib txuas yog nyob rau ntawm ib qho sib txawv subnet, thiab IP pob ntawv raug xa mus los ntawm VPN . Tus qauv tsim muaj peev xwm ua tau ntau dua li L2 VPN , thiab muaj kev ruaj ntseg ntau dua li kev siv L2 yooj yim.

Tom qab ntawd, ib tug kuj yuav nug, MPLS l2vpn yog dab tsi?

Txheej 2 VPN ( L2VPN ) emulates tus cwj pwm ntawm LAN hla tus IP lossis MPLS -enabled IP network tso cai rau Ethernet pab kiag li lawm sib txuas lus nrog ib leeg raws li lawv xav tau thaum txuas mus rau ib qho LAN ntu. ISP muab kev sib txuas L2; tus neeg siv khoom tsim lub network siv cov ntaub ntawv txuas cov peev txheej tau los ntawm ISP.

Qhov txawv ntawm VPN thiab MPLS yog dab tsi?

1. VPN yog lub network txheej txheej saum lub computer network; MPLS coj thiab nqa cov ntaub ntawv los ntawm ib lub network node mus rau lwm qhov. VPN siv cryptographic tunneling raws tu qauv los muab kev ruaj ntseg qib siab; MPLS yog ua tau nruab nrab Data Link Layer thiab Network Layer.

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