Hi Abhishek. The most important things to think about are: - What type of provider network does the VPN operate over? - What types of service does the VPN provide to customer networks?
L1VPN is special because it operates over optical/TDM provider networks, and allows customer networks to set up LSPs. These are strong motivators for some providers and customers. Contrast this with L2VPN, which provides L2 services like VPLS and VPWS, and with L3VPN, which assumes an IP/MPLS+BGP core. Reading the framework drafts from the l*vpn working groups should help you become familiar with the basics. http://www.ietf.org/internet-drafts/draft-ietf-l1vpn-framework-04.txt http://www.ietf.org/rfc/rfc4664.txt http://www.ietf.org/rfc/rfc4110.txt Hope that helps, David McW. -----Original Message----- From: Abhishek Verma [mailto:[EMAIL PROTECTED] Sent: 16 November 2006 18:23 To: l1vpn@lists.ietf.org Subject: [L1vpn] Newbie Question Hi, Where can i find more information on the need and the basics of L1 VPNs apart from the internet drafts available on the L1 VPN IETF web page? I want to understand the motivation behind this, given that we already have L2 and L3 VPNs. Thanks, Abhishek _______________________________________________ L1vpn mailing list L1vpn@lists.ietf.org https://www1.ietf.org/mailman/listinfo/l1vpn _______________________________________________ L1vpn mailing list L1vpn@lists.ietf.org https://www1.ietf.org/mailman/listinfo/l1vpn