A YANG Data Model for MPLS Static LSPs
draft-ietf-mpls-static-yang-05

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Last updated 2018-02-15
Replaces draft-saad-mpls-static-yang
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MPLS Working Group                                               T. Saad
Internet-Draft                                                   K. Raza
Intended status: Standards Track                               R. Gandhi
Expires: August 19, 2018                             Cisco Systems, Inc.
                                                                  X. Liu
                                                                   Jabil
                                                               V. Beeram
                                                        Juniper Networks
                                                       February 15, 2018

                 A YANG Data Model for MPLS Static LSPs
                     draft-ietf-mpls-static-yang-05

Abstract

   This document contains the specification for the MPLS Static Label
   Switched Paths (LSPs) YANG model.  The model allows for the
   provisioning of static LSP(s) on LER(s) and LSR(s) devices along a
   LSP path without the dependency on any signaling protocol.  The MPLS
   Static LSP model augments the MPLS base YANG model with specific data
   to configure and manage MPLS Static LSP(s).

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

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   This Internet-Draft will expire on August 19, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of

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   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Model Organization  . . . . . . . . . . . . . . . . . . .   3
     1.3.  MPLS Static LSPs Model Tree Diagram . . . . . . . . . . .   4
     1.4.  MPLS Static LSP YANG Module(s)  . . . . . . . . . . . . .   6
   2.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   4.  Normative References  . . . . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   This document describes a YANG data model for configuring and
   managing the Static LSPs feature.  The model allows the configuration
   of LER and LSR devices with the necessary MPLS cross-connects or
   bindings to realize an end-to-end LSP service.

   A static LSP is established by manually specifying incoming and
   outgoing MPLS label(s) and necessary forwarding information on each
   of the traversed Label Edge Router (LER) and Label Switched Router
   (LSR) devices (ingress, transit, or egress nodes) of the forwarding
   path.

   For example, on an ingress LER device, the model is used to associate
   a specific Forwarding Equivalence Class (FEC) of packets- e.g.
   matching a specific IP prefix in a Virtual Routing or Forwarding
   (VRF) instance- to an MPLS outgoing label imposition, next-hop(s) and
   respective outgoing interface(s) to forward the packet.  On an LSR
   device, the model is used to create a binding that swaps the incoming
   label with an outgoing label and forwards the packet on one or
   multiple egress path(s).  On an egress LER, it is used to create a
   binding that decapsulates the incoming MPLS label and performs
   forwarding based on the inner MPLS label (if present) or IP
   forwarding in the packet.

   The MPLS Static LSP YANG model is defined in module "ietf-mpls-
   static" and augments the MPLS Base YANG model defined in module
   "ietf-mpls" in [I-D.saad-mpls-static-yang].

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