Subject: a question about auto-discovery

From: "yongjoo" <[email-masked]>
Date: Fri, 20 Sep 2002 13:16:44 -0700

I found that "PP CE-based VPN using IPSec I-D" metioned three possible methods to achieve the automatic membership discovery as follows:
(1) using the SP's management system
(2) pushing information from the SP's VPN database
(3) using the SA signaling protocol (IKE)

On the other hand, "PP PE-based VPN I-D" gave three possible examples of the automatic membership discovery as follows:
(1) directory server approach, in which VRs query a server to determine their neighbors
(2) Explicit configuration via a management platform
(3) Piggybacking VPN membership and topology information using existing routing protocols like BGP.

My question is as follows:
(1) Can we use the above three possible PP PE-based VPN auto-discovery mechanisms for CE-based VPN? If so, how?
(2) Because of BGP implementation or configuration complexity, a DNS/LDP based solution for provider based VPNs has been proposed. Can this solution be used for PE-based VPN and CE-based VPN? If so, how?

Thank you in advance,
Charlie
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Charlie ( Yongjoo ) Shin
Department of Computer Science
University of California, Davis CA95616
530-752-3128 (office)
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