TABLE OF CONTENTS GMPLS enables multiple applications that could be sold as transport-related services. In the previous chapter we discussed one such application Multi-Layer Point-to-Multipoint TE tunnels. In this chapter we will concentrate on Point-to- Point Layer One services, in particular, on Layer One Virtual Private Networks (L1VPNs). We will identify the service as it is seen from the Service Provider's and service user's perspectives: service components; building blocks; deployment scenarios; requirements for and separation of responsibilities between data, control, and management planes; and finally, the reference models that are needed to satisfy the requirements. After that we will analyze how and to what extent the GMPLS technology can be used to provide L1VPNs, and what additions/extensions are required.
The following definitions are used in this chapter.
Provider: An organization that has administrative control over a Layer One network.
Provider network: A Layer One network.
Customer: An organization that uses services provided by the Provider.
Customer site: A segment of the Customer network built from Customer network devices whose interconnection is realized by means not related to the services provided by the Provider. Customer site 1 and Customer site 2 in Figure 12.1 are two examples of Customer sites.
Figure 12.1: Layer One service components.
Customer network: Two or more isolated Customer sites interconnected via the Provider network.
Provider device ( P ): A Provider network node that has links only to other Provider network nodes. Examples of Provider devices...
