Nokia VPN Services Tunnel Structure
In this article I want to tell you about the tunnels used for services that is set up via MPLS. Here there are some key points that you must know to understand service structure well.
Think about physically we have one port. In services structure, there are transport tunnels that is set up via LDP or RSVP-TE. AS you know LDP and RSVP-TE are the two protocols that are used in MPLS as label swithing protocols. Shortly, transport tunnels are the tunnels that the label swithing is done with transport labels. This is the outher label of the VPN packet.LSPs (Label Swithed Paths) are set up with these protocols.