Virtual private network vpn pdf

This article includes a list of references, but its sources remain unclear because it has insufficient virtual private network vpn pdf citations. Please help to improve this article by introducing more precise citations. Ethernet-based multipoint to multipoint communication over IP or MPLS networks.

It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudowires. The technologies that can be used as pseudo-wire can be Ethernet over MPLS, L2TPv3 or even GRE. The provider network then emulates a switch or bridge to connect all of the customer LANs to create a single bridged LAN.

VPLS is designed for applications that require multipoint or broadcast access. Since VPLS emulates a LAN, full mesh connectivity is required. Auto-discovery refers to the process of finding other PE routers participating in the same VPN or VPLS.

VPLS traffic to other PEs. BGP provides both auto-discovery and signalling. The mechanisms used are very similar to those used in establishing Layer-3 MPLS VPNs.