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How does an MPLS Layer 3 VPN function?

A.

set of sites use multiprotocol BGP at the customer site for aggregation

Answers
A.

set of sites use multiprotocol BGP at the customer site for aggregation

B.

multiple customer sites interconnect through service provider network to create secure tunnels between customer edge devices

Answers
B.

multiple customer sites interconnect through service provider network to create secure tunnels between customer edge devices

C.

set of sites interconnect privately over the Internet for security

Answers
C.

set of sites interconnect privately over the Internet for security

D.

multiple customer sites interconnect through a service provider network using customer edge to provider edge connectivity

Answers
D.

multiple customer sites interconnect through a service provider network using customer edge to provider edge connectivity

Suggested answer: D

Explanation:

A Multiprotocol Label Switching(MPLS) Layer 3 Virtual Private Network (VPN) consists of a set of sites that are interconnected by means of an MPLS provider core network. At each customer site, one or more customer edge (CE) routers attach to one or more provider edge (PE) routers.

Reference:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-5/lxvpn/configuration/guide/b-l3vpn-cg-asr9000-65x/b-l3vpn-cg-asr9000-65x_chapter_010.pdf

asked 07/10/2024
Wilker Aguiar
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