What is the difference between inter-AS VPN and intra-AS VPN?

The correct answer is D. Inter-AS VPN requires cooperation between different autonomous systems to handle label. Inter-AS VPNs require coordination between two or more autonomous systems so that labels and VPN routes can be exchanged across AS boundaries, typically through ASBRs using eBGP- based mechanisms. In contrast, intra-AS VPNs operate entirely within one autonomous system, where…

Service Provider VPN Technologies

Question

Options

AInter-AS VPN uses eBGP and MPLS to extend VPN services across ASBRs, and intra-AS VPN
BInter-AS VPN uses route reflectors to distribute VPN routes between AS, and intra-AS VPN
CInter-AS VPN mandates a separate VPN instance for each AS, and intra-AS VPN merges all VPN
DInter-AS VPN requires cooperation between different autonomous systems to handle label

How the community answered

(36 responses)

A
6% (2)
B
3% (1)
D
92% (33)

Explanation

Inter-AS VPNs require coordination between two or more autonomous systems so that labels and VPN routes can be exchanged across AS boundaries, typically through ASBRs using eBGP- based mechanisms. In contrast, intra-AS VPNs operate entirely within one autonomous system, where label distribution is handled internally using mechanisms such as LDP or internal BGP signaling without external AS coordination.

Topics

#inter-AS VPN#intra-AS VPN#MPLS label exchange#ASBR

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