L3VPN Service Model
charter-ietf-l3sm-01

Document Charter L3VPN Service Model WG (l3sm)
Title L3VPN Service Model
Last updated 2015-03-24
State Approved
WG State Concluded
IESG Responsible AD Benoît Claise
Charter Edit AD Benoît Claise
Send notices to (None)

Charter
charter-ietf-l3sm-01

The IETF and the industry in general is currently specifying a set of YANG
models for network element and protocol configuration. This is an essential
first step, but the end goal is full system configuration that allows the
deployment of services across networks. Services are built from a combination
of network element and protocol configuration, but are specified to service
users in more abstract terms.

The Layer Three Virtual Private Network Service Model (L3SM) working group is a
short-lived WG tasked to create a YANG data model that describes a L3VPN
service (a L3VPN service model) that can be used for communication between
customers and network operators, and to provide input to automated control and
configuration applications.

It needs to be clearly understood that this L3VPN service model is not an L3VPN
configuration model. That is, it does not provide details for configuring
network elements or protocols. Instead it contains the characteristics of the
service, as discussed between the operators and their customers. A separate
process is responsible for mapping this service model onto the protocols and
network elements depending on how the network operator chooses to realise the
service.

The deliverable from this working group will provide information to evaluate
the set of YANG models that have already been developed or are under
development, and will help identify any missing models or details.  The
deliverable can be viewed as driving requirements for protocol configuration
model so that the service parameters can be mapped into inputs used by the
protocol models.

It is hoped that this working group will provide evidence that such service
models can be quickly constructed and agreed upon. If successful, further
service models may be developed in other working groups

The working group should consider draft-l3vpn-service-yang as a starting
point.