TEAS Working Group V. Beeram Internet-Draft T. Saad Intended status: Standards Track Juniper Networks Expires: January 8, 2020 R. Gandhi Cisco Systems, Inc. X. Liu Volta Networks I. Bryskin Huawei Technologies H. Shah Ciena July 07, 2019 A YANG Data Model for RSVP-TE Protocol draft-ietf-teas-yang-rsvp-te-07 Abstract This document defines a YANG data model for the configuration and management of RSVP (Resource Reservation Protocol) to establish Traffic-Engineered (TE) Label-Switched Paths (LSPs) for MPLS (Multi- Protocol Label Switching) and other technologies. The model defines a generic RSVP-TE module for signaling LSPs that are technology agnostic. The generic RSVP-TE module is to be augmented by technology specific RSVP-TE modules that define technology specific data. This document also defines the augmentation for RSVP-TE MPLS LSPs model. This model covers data for the configuration, operational state, remote procedural calls, and event notifications. 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 Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." Beeram, et al. Expires January 8, 2020 [Page 1] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 This Internet-Draft will expire on January 8, 2020. Copyright Notice Copyright (c) 2019 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 publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 1.2. Prefixes in Data Node Names . . . . . . . . . . . . . . . 3 2. Model Overview . . . . . . . . . . . . . . . . . . . . . . . 4 2.1. Module Relationship . . . . . . . . . . . . . . . . . . . 4 2.2. Model Tree Diagrams . . . . . . . . . . . . . . . . . . . 5 2.2.1. RSVP-TE Model Tree Diagram . . . . . . . . . . . . . 5 2.2.2. RSVP-TE MPLS Model Tree Diagram . . . . . . . . . . . 14 2.3. YANG Modules . . . . . . . . . . . . . . . . . . . . . . 16 2.3.1. RSVP-TE YANG Module . . . . . . . . . . . . . . . . . 16 2.3.2. RSVP-TE MPLS YANG Module . . . . . . . . . . . . . . 29 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42 4. Security Considerations . . . . . . . . . . . . . . . . . . . 42 5. Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . 43 6. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 43 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 43 7.1. Normative References . . . . . . . . . . . . . . . . . . 44 7.2. Informative References . . . . . . . . . . . . . . . . . 45 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 46 1. Introduction YANG [RFC7950] is a data modeling language that was introduced to define the contents of a conceptual data store that allows networked devices to be managed using NETCONF [RFC6241]. YANG has proved relevant beyond its initial confines, as bindings to other interfaces (e.g. RESTCONF [RFC8040]) and encoding other than XML (e.g. JSON) are being defined. Furthermore, YANG data models can be used as the Beeram, et al. Expires January 8, 2020 [Page 2] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 basis of implementation for other interfaces, such as CLI and programmatic APIs. This document defines a generic YANG data model for configuring and managing RSVP-TE LSP(s) [RFC3209]. The RSVP-TE generic model augments the RSVP base and extended models defined in [I-D.ietf-teas-yang-rsvp], and adds TE extensions to the RSVP protocol [RFC2205] model configuration and state data. The technology specific RSVP-TE models augment the generic RSVP-TE model with additional technology specific parameters. For example, this document also defines the MPLS RSVP-TE model for configuring and managing MPLS RSVP TE LSP(s). In addition to augmenting the RSVP YANG module, the modules defined in this document augment the TE Interfaces, Tunnels and LSP(s) YANG module defined in [I-D.ietf-teas-yang-te] to define additional parameters to enable signaling for RSVP-TE. 1.1. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. The terminology for describing YANG data models is found in [RFC7950]. 1.2. Prefixes in Data Node Names In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in Table 1. Beeram, et al. Expires January 8, 2020 [Page 3] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 +---------------+--------------------+-------------------------------+ | Prefix | YANG module | Reference | +---------------+--------------------+-------------------------------+ | yang | ietf-yang-types | [RFC6991] | | inet | ietf-inet-types | [RFC6991] | | te | ietf-te | [I-D.ietf-teas-yang-te] | | rsvp | ietf-rsvp | [I-D.ietf-teas-yang-rsvp] | | te-dev | ietf-te-device | [I-D.ietf-teas-yang-te] | | te-types | ietf-te-types | [I-D.ietf-teas-yang-te-types] | | te-mpls-types | ietf-te-mpls-types | [I-D.ietf-teas-yang-te-types] | | rsvp-te | ietf-rsvp-te | this document | | rsvp-te-mpls | ietf-rsvp-te-mpls | this document | +---------------+--------------------+-------------------------------+ Table 1: Prefixes and corresponding YANG modules 2. Model Overview The RSVP-TE generic model augments the RSVP base and extended YANG models defined in [I-D.ietf-teas-yang-rsvp]. It also augments the TE tunnels and interfaces module defined in [I-D.ietf-teas-yang-te] to cover parameters specific to the configuration and management of RSVP-TE interfaces, tunnels and LSP(s). The RSVP-TE MPLS YANG model augments the RSVP-TE generic model with parameters to configure and manage signaling of MPLS RSVP-TE LSPs. RSVP-TE model augmentation for other dataplane technologies (e.g. OTN or WDM) are outside the scope of this document. There are three types of configuration and state data nodes in module(s) defined in this document: o those augmenting or extending the base RSVP module that is defined in [I-D.ietf-teas-yang-rsvp] o those augmenting or extending the base TE module defined in [I-D.ietf-teas-yang-te] o those that are specific to the RSVP-TE and RSVP-TE MPLS modules defined in this document. 2.1. Module Relationship The data pertaining to RSVP-TE in this document is divided into two modules: a technology agnostic RSVP-TE module that holds generic parameters for RSVP-TE applicable to all technologies, and a MPLS technology specific RSVP-TE module that holds parameters specific to MPLS technology. Beeram, et al. Expires January 8, 2020 [Page 4] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 The relationship between the different modules is shown in Figure 1. TE basic +---------+ module | ietf-te | o: augment +---------+ o | | +--------------+ RSVP-TE module | ietf-rsvp-te |o . . . +--------------+ \ | \ o +--------------------+ +-----------+ | ietf-rsvp-te-mpls | RSVP module | ietf-rsvp | +--------------------+ +-----------+ RSVP-TE with MPLS o | RSVP extended | module +--------------------+ | ietf-rsvp-extended | +--------------------+ Figure 1: Relationship of RSVP and RSVP-TE modules with other protocol modules 2.2. Model Tree Diagrams A full tree diagram of the module(s) defined in this document as per the syntax defined in [RFC8340] are given in subsequent sections. 2.2.1. RSVP-TE Model Tree Diagram Figure 2 shows the YANG tree diagram of the RSVP-TE generic YANG model defined in module ietf-rsvp-te.yang. module: ietf-rsvp-te augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:globals: +--rw global-soft-preemption! +--rw soft-preemption-timeout? uint16 augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces: +--rw rsvp-te-interface-attributes +--ro state augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces /rsvp:interface: Beeram, et al. Expires January 8, 2020 [Page 5] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 +--rw rsvp-te-interface-attributes +--ro state augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:globals /rsvp:sessions/rsvp:session/rsvp:state/rsvp:psbs/rsvp:psb: +--ro tspec-average-rate? rt-types:bandwidth-ieee-float32 +--ro tspec-size? rt-types:bandwidth-ieee-float32 +--ro tspec-peak-rate? rt-types:bandwidth-ieee-float32 +--ro min-policed-unit? uint32 +--ro max-packet-size? uint32 augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:globals /rsvp:sessions/rsvp:session/rsvp:state/rsvp:rsbs/rsvp:rsb: +--ro fspec-average-rate? rt-types:bandwidth-ieee-float32 +--ro fspec-size? rt-types:bandwidth-ieee-float32 +--ro fspec-peak-rate? rt-types:bandwidth-ieee-float32 +--ro min-policed-unit? uint32 +--ro max-packet-size? uint32 augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:neighbors: augment /te:te/te:tunnels/te:tunnel: +--rw lsp-signaled-name? string +--rw session-attribute* identityref +--rw lsp-attribute* identityref +--rw retry-timer? uint16 augment /te:te/te:lsps-state/te:lsp: +--ro associated-rsvp-session? leafref +--ro lsp-signaled-name? string +--ro session-attribute* identityref +--ro lsp-attribute* identityref +--ro explicit-route-objects | +--ro incoming-explicit-route-hop* [index] | | +--ro index uint32 | | +--ro (type)? | | +--:(numbered-node-hop) | | | +--ro numbered-node-hop | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type | | +--:(numbered-link-hop) | | | +--ro numbered-link-hop | | | +--ro link-tp-id te-tp-id | | | +--ro hop-type? te-hop-type | | | +--ro direction? te-link-direction | | +--:(unnumbered-link-hop) | | | +--ro unnumbered-link-hop | | | +--ro link-tp-id te-tp-id | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type Beeram, et al. Expires January 8, 2020 [Page 6] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | | | +--ro direction? te-link-direction | | +--:(as-number) | | | +--ro as-number-hop | | | +--ro as-number inet:as-number | | | +--ro hop-type? te-hop-type | | +--:(label) | | +--ro label-hop | | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro outgoing-explicit-route-hop* [index] | +--ro index uint32 | +--ro (type)? | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro hop-type? te-hop-type | | +--ro direction? te-link-direction | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type | | +--ro direction? te-link-direction | +--:(as-number) | | +--ro as-number-hop | | +--ro as-number inet:as-number | | +--ro hop-type? te-hop-type | +--:(label) | +--ro label-hop | +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro incoming-record-route-subobjects | +--ro incoming-record-route-subobject* [index] | +--ro index uint32 | +--ro (type)? | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id Beeram, et al. Expires January 8, 2020 [Page 7] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | | +--ro flags* path-attribute-flags | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro flags* path-attribute-flags | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id? te-node-id | | +--ro flags* path-attribute-flags | +--:(label) | +--ro label-hop | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro flags* path-attribute-flags +--ro outgoing-record-route-subobjects +--ro outgoing-record-route-subobject* [index] +--ro index uint32 +--ro (type)? +--:(numbered-node-hop) | +--ro numbered-node-hop | +--ro node-id te-node-id | +--ro flags* path-attribute-flags +--:(numbered-link-hop) | +--ro numbered-link-hop | +--ro link-tp-id te-tp-id | +--ro flags* path-attribute-flags +--:(unnumbered-link-hop) | +--ro unnumbered-link-hop | +--ro link-tp-id te-tp-id | +--ro node-id? te-node-id | +--ro flags* path-attribute-flags +--:(label) +--ro label-hop +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro flags* path-attribute-flags augment /te:te/te:tunnels/te:tunnel/te:p2p-primary-paths /te:p2p-primary-path/te:lsps/te:lsp: +--ro associated-rsvp-session? leafref +--ro lsp-signaled-name? string +--ro session-attribute* identityref Beeram, et al. Expires January 8, 2020 [Page 8] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 +--ro lsp-attribute* identityref +--ro explicit-route-objects | +--ro incoming-explicit-route-hop* [index] | | +--ro index uint32 | | +--ro (type)? | | +--:(numbered-node-hop) | | | +--ro numbered-node-hop | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type | | +--:(numbered-link-hop) | | | +--ro numbered-link-hop | | | +--ro link-tp-id te-tp-id | | | +--ro hop-type? te-hop-type | | | +--ro direction? te-link-direction | | +--:(unnumbered-link-hop) | | | +--ro unnumbered-link-hop | | | +--ro link-tp-id te-tp-id | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type | | | +--ro direction? te-link-direction | | +--:(as-number) | | | +--ro as-number-hop | | | +--ro as-number inet:as-number | | | +--ro hop-type? te-hop-type | | +--:(label) | | +--ro label-hop | | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro outgoing-explicit-route-hop* [index] | +--ro index uint32 | +--ro (type)? | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro hop-type? te-hop-type | | +--ro direction? te-link-direction | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type Beeram, et al. Expires January 8, 2020 [Page 9] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | | +--ro direction? te-link-direction | +--:(as-number) | | +--ro as-number-hop | | +--ro as-number inet:as-number | | +--ro hop-type? te-hop-type | +--:(label) | +--ro label-hop | +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro incoming-record-route-subobjects | +--ro incoming-record-route-subobject* [index] | +--ro index uint32 | +--ro (type)? | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id | | +--ro flags* path-attribute-flags | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro flags* path-attribute-flags | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id? te-node-id | | +--ro flags* path-attribute-flags | +--:(label) | +--ro label-hop | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro flags* path-attribute-flags +--ro outgoing-record-route-subobjects +--ro outgoing-record-route-subobject* [index] +--ro index uint32 +--ro (type)? +--:(numbered-node-hop) | +--ro numbered-node-hop | +--ro node-id te-node-id | +--ro flags* path-attribute-flags +--:(numbered-link-hop) | +--ro numbered-link-hop | +--ro link-tp-id te-tp-id Beeram, et al. Expires January 8, 2020 [Page 10] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | +--ro flags* path-attribute-flags +--:(unnumbered-link-hop) | +--ro unnumbered-link-hop | +--ro link-tp-id te-tp-id | +--ro node-id? te-node-id | +--ro flags* path-attribute-flags +--:(label) +--ro label-hop +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro flags* path-attribute-flags augment /te:te/te:tunnels/te:tunnel/te:p2p-primary-paths /te:p2p-primary-path/te:lsp-provisioning-error-infos /te:lsp-provisioning-error-info: +--ro rsvp-message-type? identityref +--ro rsvp-error-code? uint8 +--ro rsvp-error-subcode? uint16 augment /te:te/te:tunnels/te:tunnel/te:p2p-primary-paths /te:p2p-primary-path/te:lsps/te:lsp /te:lsp-provisioning-error-infos /te:lsp-provisioning-error-info: +--ro rsvp-message-type? identityref +--ro rsvp-error-code? uint8 +--ro rsvp-error-subcode? uint16 augment /te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths /te:p2p-secondary-path/te:lsps/te:lsp: +--ro associated-rsvp-session? leafref +--ro lsp-signaled-name? string +--ro session-attribute* identityref +--ro lsp-attribute* identityref +--ro explicit-route-objects | +--ro incoming-explicit-route-hop* [index] | | +--ro index uint32 | | +--ro (type)? | | +--:(numbered-node-hop) | | | +--ro numbered-node-hop | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type | | +--:(numbered-link-hop) | | | +--ro numbered-link-hop | | | +--ro link-tp-id te-tp-id | | | +--ro hop-type? te-hop-type | | | +--ro direction? te-link-direction | | +--:(unnumbered-link-hop) | | | +--ro unnumbered-link-hop Beeram, et al. Expires January 8, 2020 [Page 11] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | | | +--ro link-tp-id te-tp-id | | | +--ro node-id te-node-id | | | +--ro hop-type? te-hop-type | | | +--ro direction? te-link-direction | | +--:(as-number) | | | +--ro as-number-hop | | | +--ro as-number inet:as-number | | | +--ro hop-type? te-hop-type | | +--:(label) | | +--ro label-hop | | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro outgoing-explicit-route-hop* [index] | +--ro index uint32 | +--ro (type)? | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro hop-type? te-hop-type | | +--ro direction? te-link-direction | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id te-node-id | | +--ro hop-type? te-hop-type | | +--ro direction? te-link-direction | +--:(as-number) | | +--ro as-number-hop | | +--ro as-number inet:as-number | | +--ro hop-type? te-hop-type | +--:(label) | +--ro label-hop | +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro incoming-record-route-subobjects | +--ro incoming-record-route-subobject* [index] | +--ro index uint32 | +--ro (type)? Beeram, et al. Expires January 8, 2020 [Page 12] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 | +--:(numbered-node-hop) | | +--ro numbered-node-hop | | +--ro node-id te-node-id | | +--ro flags* path-attribute-flags | +--:(numbered-link-hop) | | +--ro numbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro flags* path-attribute-flags | +--:(unnumbered-link-hop) | | +--ro unnumbered-link-hop | | +--ro link-tp-id te-tp-id | | +--ro node-id? te-node-id | | +--ro flags* path-attribute-flags | +--:(label) | +--ro label-hop | +--ro te-label | | +--ro (technology)? | | | +--:(generic) | | | +--ro generic? rt-types:generalized-label | | +--ro direction? te-label-direction | +--ro flags* path-attribute-flags +--ro outgoing-record-route-subobjects +--ro outgoing-record-route-subobject* [index] +--ro index uint32 +--ro (type)? +--:(numbered-node-hop) | +--ro numbered-node-hop | +--ro node-id te-node-id | +--ro flags* path-attribute-flags +--:(numbered-link-hop) | +--ro numbered-link-hop | +--ro link-tp-id te-tp-id | +--ro flags* path-attribute-flags +--:(unnumbered-link-hop) | +--ro unnumbered-link-hop | +--ro link-tp-id te-tp-id | +--ro node-id? te-node-id | +--ro flags* path-attribute-flags +--:(label) +--ro label-hop +--ro te-label | +--ro (technology)? | | +--:(generic) | | +--ro generic? rt-types:generalized-label | +--ro direction? te-label-direction +--ro flags* path-attribute-flags augment /te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths /te:p2p-secondary-path/te:lsp-provisioning-error-infos Beeram, et al. Expires January 8, 2020 [Page 13] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 /te:lsp-provisioning-error-info: +--ro rsvp-message-type? identityref +--ro rsvp-error-code? uint8 +--ro rsvp-error-subcode? uint16 augment /te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths /te:p2p-secondary-path/te:lsps/te:lsp /te:lsp-provisioning-error-infos /te:lsp-provisioning-error-info: +--ro rsvp-message-type? identityref +--ro rsvp-error-code? uint8 +--ro rsvp-error-subcode? uint16 augment /te:te/te-dev:interfaces/te-dev:interface: Figure 2: RSVP-TE model Tree diagram 2.2.2. RSVP-TE MPLS Model Tree Diagram Figure 5 shows the YANG tree diagram of the RSVP-TE MPLS YANG model defined in module ietf-rsvp-te-mpls.yang and that augments RSVP-TE module as well as RSVP and TE YANG modules. module: ietf-rsvp-te-mpls augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp: +--rw fast-reroute-local-revertive +--rw rsvp-frr-local-revert-delay? uint32 augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces: augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces /rsvp:interface: augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:globals /rsvp:sessions/rsvp:session/rsvp:state: augment /rt:routing/rt:control-plane-protocols /rt:control-plane-protocol/rsvp:rsvp/rsvp:neighbors: augment /te:te/te:tunnels/te:tunnel: +--rw session-attribute* identityref augment /te:te/te:lsps-state/te:lsp: +--ro session-attribute* identityref +--ro backup-info +--ro backup-tunnel-name? string +--ro backup-frr-on? uint8 +--ro backup-protected-lsp-num? uint32 augment /te:te/te:tunnels/te:tunnel/te:p2p-primary-paths /te:p2p-primary-path/te:lsps/te:lsp: +--ro session-attribute* identityref +--ro backup-info Beeram, et al. Expires January 8, 2020 [Page 14] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 +--ro backup-tunnel-name? string +--ro backup-frr-on? uint8 +--ro backup-protected-lsp-num? uint32 augment /te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths /te:p2p-secondary-path/te:lsps/te:lsp: +--ro session-attribute* identityref +--ro backup-info +--ro backup-tunnel-name? string +--ro backup-frr-on? uint8 +--ro backup-protected-lsp-num? uint32 augment /te:te/te-dev:interfaces/te-dev:interface: +--rw bandwidth-mpls-reservable +--rw (bandwidth-value)? | +--:(absolute) | | +--rw absolute-value? te-packet-types:bandwidth-kbps | +--:(percentage) | +--rw percent-value? uint32 +--rw (bc-model-type)? +--:(bc-model-rdm) | +--rw bc-model-rdm | +--rw bandwidth-mpls-constraints | +--rw maximum-reservable? | | te-packet-types:bandwidth-kbps | +--rw bc-value* uint32 +--:(bc-model-mam) | +--rw bc-model-mam | +--rw bandwidth-mpls-constraints | +--rw maximum-reservable? | | te-packet-types:bandwidth-kbps | +--rw bc-value* uint32 +--:(bc-model-mar) +--rw bc-model-mar +--rw bandwidth-mpls-constraints +--rw maximum-reservable? | te-packet-types:bandwidth-kbps +--rw bc-value* uint32 augment /te:te/te-dev:interfaces/te-dev:interface: +--rw rsvp-te-frr-backups +--rw (type)? +--:(static-tunnel) | +--rw static-backups | +--rw static-backup* [backup-tunnel-name] | +--rw backup-tunnel-name | -> /te:te/tunnels/tunnel/name +--:(auto-tunnel) +--rw auto-tunnel-backups +--rw auto-backup-protection? identityref +--rw auto-backup-path-computation? identityref Beeram, et al. Expires January 8, 2020 [Page 15] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 Figure 3: RSVP-TE MPLS Tree diagram 2.3. YANG Modules 2.3.1. RSVP-TE YANG Module The RSVP-TE generic YANG module "ietf-rsvp-te" imports the following modules: o ietf-rsvp defined in [I-D.ietf-teas-yang-rsvp] o ietf-routing-types defined in [RFC8294] o ietf-te-types defined in [I-D.ietf-teas-yang-te-types] o ietf-te and ietf-te-dev defined in [I-D.ietf-teas-yang-te] This module references the following documents: [I-D.ietf-teas-yang-rsvp], [RFC8349], [I-D.ietf-teas-yang-te], [I-D.ietf-teas-yang-te-types], [RFC2210], [RFC4920], [RFC5420], [RFC7570], [RFC4859]. file "ietf-rsvp-te@2019-07-06.yang" module ietf-rsvp-te { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-rsvp-te"; prefix "rsvp-te"; import ietf-rsvp { prefix rsvp; reference "draft-ietf-teas-yang-rsvp: A YANG Data Model for Resource Reservation Protocol (RSVP)"; } import ietf-routing { prefix "rt"; reference "RFC8349: A YANG Data Model for Routing Management"; } import ietf-routing-types { prefix rt-types; reference "RFC8294: Common YANG Data Types for the Routing Area"; } import ietf-te { prefix te; Beeram, et al. Expires January 8, 2020 [Page 16] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 reference "draft-ietf-teas-yang-te: A YANG Data Model for Traffic Engineering Tunnels and Interfaces"; } import ietf-te-device { prefix te-dev; reference "draft-ietf-teas-yang-te: A YANG Data Model for Traffic Engineering Tunnels and Interfaces"; } /* Import TE generic types */ import ietf-te-types { prefix te-types; reference "draft-ietf-teas-yang-te-types: A YANG Data Model for Common Traffic Engineering Types"; } import ietf-inet-types { prefix inet; reference "RFC6991: Common YANG Data Types"; } organization "IETF Traffic Engineering Architecture and Signaling (TEAS) Working Group"; contact "WG Web: WG List: WG Chair: Lou Berger WG Chair: Vishnu Pavan Beeram Editor: Vishnu Pavan Beeram Editor: Tarek Saad Editor: Rakesh Gandhi Editor: Xufeng Liu Beeram, et al. Expires January 8, 2020 [Page 17] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 Editor: Igor Bryskin Editor: Himanshu Shah "; description "This module contains the RSVP-TE YANG generic data model. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2018 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; // RFC Ed.: replace XXXX with actual RFC number and remove this // note. // RFC Ed.: update the date below with the date of RFC publication // and remove this note. revision "2019-07-06" { description "A YANG Data Model for RSVP-TE"; reference "RFCXXXX: A YANG Data Model for RSVP-TE Protocol"; } identity rsvp-message-type { description "RSVP message types"; } identity rsvp-message-path { base rsvp-message-type; description "RSVP Path message"; reference "RFC2205"; } identity rsvp-message-resv { base rsvp-message-type; description "RSVP Resv message"; reference "RFC2205"; Beeram, et al. Expires January 8, 2020 [Page 18] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } identity rsvp-message-path-err { base rsvp-message-type; description "RSVP Path-Err message"; reference "RFC2205"; } identity rsvp-message-resv-err { base rsvp-message-type; description "RSVP Resv-Err message"; reference "RFC2205"; } identity rsvp-message-path-tear { base rsvp-message-type; description "RSVP Path Tear message"; reference "RFC2205"; } identity rsvp-message-resv-conf { base rsvp-message-type; description "RSVP Resv Confirm message"; reference "RFC2205"; } identity rsvp-message-srefresh { base rsvp-message-type; description "RSVP SRefresh message"; reference "RFC2961"; } identity rsvp-message-hello { base rsvp-message-type; description "RSVP Hello message"; reference "RFC3209"; } identity rsvp-message-bundle { base rsvp-message-type; description "RSVP Bundle message"; reference "RFC2961"; } identity rsvp-message-notify { base rsvp-message-type; description "RSVP Notify message"; reference "RFC3473"; } /** * RSVP-TE LSPs groupings. */ grouping lsp-record-route-information-state { description "recorded route information grouping"; container incoming-record-route-subobjects { Beeram, et al. Expires January 8, 2020 [Page 19] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 description "RSVP recorded route object incoming information"; list incoming-record-route-subobject { when "../../te:origin-type != 'ingress'" { description "Applicable on non-ingress LSPs only"; } key "index"; ordered-by user; description "List of RSVP Path record-route objects"; uses te-types:record-route-state; } } container outgoing-record-route-subobjects { description "RSVP recorded route object outgoing information"; list outgoing-record-route-subobject { when "../../te:origin-type != 'egress'" { description "Applicable on non-egress LSPs only"; } key "index"; ordered-by user; description "List of RSVP Resv record-route objects"; uses te-types:record-route-state; } } } grouping lsp-explicit-route-information-state { description "RSVP-TE LSP explicit-route information"; container explicit-route-objects { description "Explicit route object information"; list incoming-explicit-route-hop { when "../../te:origin-type != 'ingress'" { description "Applicable on non-ingress LSPs only"; } key "index"; ordered-by user; description "List of incoming RSVP Path explicit-route objects"; leaf index { type uint32; description "Explicit route hop index. The index is used to identify an entry in the list. The order of entries is defined by the user without relying on key values"; } uses te-types:explicit-route-hop; } Beeram, et al. Expires January 8, 2020 [Page 20] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 list outgoing-explicit-route-hop { when "../../te:origin-type != 'egress'" { description "Applicable on non-egress LSPs only"; } key "index"; ordered-by user; description "List of outgoing RSVP Path explicit-route objects"; leaf index { type uint32; description "Explicit route hop index. The index is used to identify an entry in the list. The order of entries is defined by the user without relying on key values"; } uses te-types:explicit-route-hop; } } } grouping lsp-attributes-flags-config { description "Configuration parameters relating to RSVP-TE LSP attribute flags"; leaf-list lsp-attribute { type identityref { base te-types:lsp-attributes-flags; } description "RSVP per LSP attributes flags"; reference "RFC4920, RFC5420, RFC7570"; } } grouping lsp-session-attributes-obj-flags-config { description "Configuration parameters relating to RSVP-TE LSP session attribute flags"; reference "RFC4859: Registry for RSVP-TE Session Flags"; leaf-list session-attribute { when "../session-attribute != 'te-types:bandwidth-protection-desired' or ../session-attribute != 'te-types:soft-preemption-desired'"; type identityref { base te-types:session-attributes-flags; } Beeram, et al. Expires January 8, 2020 [Page 21] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 description "RSVP session attributes flags"; reference "RFC4859: Registry for RSVP-TE Session Flags"; } } grouping lsp-properties-config { description "Configuration parameters relating to RSVP-TE LSP session attribute flags"; leaf lsp-signaled-name { type string; description "Sets the session name to use in the session attribute object."; } uses lsp-session-attributes-obj-flags-config; uses lsp-attributes-flags-config; } grouping tunnel-properties-config { description "RSVP-TE Tunnel properties grouping"; leaf retry-timer { type uint16 { range 1..600; } units seconds; description "sets the time between attempts to establish the LSP"; } } /*** End of RSVP-TE LSP groupings ***/ /** * RSVP-TE generic global properties. */ grouping global-soft-preemption-config { description "Configuration for global RSVP-TE soft preemption"; leaf soft-preemption-timeout { type uint16 { range 0..300; } default 0; description "Timeout value for soft preemption to revert Beeram, et al. Expires January 8, 2020 [Page 22] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 to hard preemption"; } } grouping global-soft-preemption { description "Top level group for RSVP-TE soft-preemption"; container global-soft-preemption { presence "Enables soft preemption on a node."; description "Top level container for RSVP-TE soft-preemption"; uses global-soft-preemption-config; } } /*** End of RSVP-TE generic global properties. ***/ /** * RSVP-TE interface generic groupings. */ grouping rsvp-te-interface-attributes { description "Top level grouping for RSVP-TE interface properties."; container rsvp-te-interface-attributes { description "Top level container for RSVP-TE interface properties"; container state { config false; description "State information associated with RSVP-TE bandwidth"; } } } /*** End of RSVP-TE generic groupings ***/ /* RSVP-TE global properties */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals" { description "RSVP-TE augmentation to RSVP globals"; uses global-soft-preemption; } /* Linkage to the base RSVP all links */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces" { Beeram, et al. Expires January 8, 2020 [Page 23] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 description "RSVP-TE generic data augmentation pertaining to interfaces"; uses rsvp-te-interface-attributes; } /* Linkage to per RSVP interface */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces/" + "rsvp:interface" { description "RSVP-TE generic data augmentation pertaining to specific interface"; uses rsvp-te-interface-attributes; } /* add augmentation for sessions and neighbors */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals/" + "rsvp:sessions" { description "RSVP-TE generic data augmentation pertaining to session"; list session-te { key "tunnel-endpoint tunnel-id extended-tunnel-id"; config false; description "List of RSVP sessions"; leaf tunnel-endpoint { type inet:ip-address; description "XX"; } leaf tunnel-id { type uint16; description "XX"; } leaf extended-tunnel-id { type inet:ip-address; description "XX"; } uses rsvp:session-attributes-state; } } augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals/" + "rsvp:sessions/session-te/psbs/psb" { description Beeram, et al. Expires January 8, 2020 [Page 24] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 "RSVP-TE generic data augmentation pertaining to session"; /* To be added */ leaf tspec-average-rate { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Tspec Token Bucket Average Rate"; reference "RFC2210: RSVP with INTSERV"; } leaf tspec-size { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Tspec Token Bucket Burst Rate"; reference "RFC2210"; } leaf tspec-peak-rate { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Tspec Token Bucket Peak Data Rate"; reference "RFC2210"; } leaf min-policed-unit { type uint32; description "Tspec Minimum Policed Unit"; reference "RFC2210"; } leaf max-packet-size { type uint32; description "Tspec Maximum Packet Size"; reference "RFC2210"; } } augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals/" + "rsvp:sessions/session-te/rsbs/rsb" { description "RSVP-TE generic data augmentation pertaining to session"; leaf fspec-average-rate { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Fspec Token Bucket Average Rate"; reference "RFC2210"; } leaf fspec-size { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Fspec Token Bucket Burst Rate"; Beeram, et al. Expires January 8, 2020 [Page 25] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 reference "RFC2210"; } leaf fspec-peak-rate { type rt-types:bandwidth-ieee-float32; units "Bytes per second"; description "Fspec Token Bucket Peak Data Rate"; reference "RFC2210"; } leaf min-policed-unit { type uint32; description "Fspec Minimum Policed Unit"; reference "RFC2210"; } leaf max-packet-size { type uint32; description "Fspec Maximum Packet Size"; reference "RFC2210"; } } augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:neighbors" { description "RSVP-TE generic data augmentation pertaining to neighbors"; /* To be added */ } /** * RSVP-TE generic augmentations of generic TE model. */ /* TE tunnel augmentation */ augment "/te:te/te:tunnels/te:tunnel" { when "/te:te/te:tunnels/te:tunnel" + "/te:p2p-primary-paths/te:p2p-primary-path" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the path signaling protocol is RSVP-TE "; } description "RSVP-TE generic data augmentation pertaining to TE tunnels"; uses lsp-properties-config; uses tunnel-properties-config; } /* TE LSP augmentation */ grouping rsvp-te-lsp-error-info { description Beeram, et al. Expires January 8, 2020 [Page 26] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 "Grouping for RSVP-TE error reporting information"; leaf rsvp-message-type { type identityref { base rsvp-message-type; } description "The RSVP message type that delivered the error"; } leaf rsvp-error-code { type uint8; description "RSVP error code"; reference "RFC2205"; } leaf rsvp-error-subcode { type uint16; description "RSVP Error sub-codes"; reference "RFC2205"; } } grouping rsvp-te-lsp-properties { description "RSVP-TE LSP properties grouping"; leaf associated-rsvp-session { type leafref { path "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals/" + "rsvp:sessions/session-te/tunnel-id"; } config false; description "If the signalling protocol specified for this path is RSVP-TE, this leaf provides a reference to the associated session within the RSVP-TE protocol sessions list, such that details of the signaling can be retrieved."; } uses lsp-properties-config; uses lsp-explicit-route-information-state; uses lsp-record-route-information-state; } augment "/te:te/te:lsps-state/te:lsp" { when "/te:te/te:lsps-state/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description Beeram, et al. Expires January 8, 2020 [Page 27] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 "RSVP-TE generic data augmentation pertaining to specific TE LSP"; uses rsvp-te-lsp-properties; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path/te:lsps/te:lsp" { when "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path/te:lsps/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description "RSVP-TE generic data augmentation pertaining to specific TE LSP"; uses rsvp-te-lsp-properties; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path" + "/te:lsp-provisioning-error-infos" + "/te:lsp-provisioning-error-info" { description "Augmentation for RSVP-TE per LSP error reason"; uses rsvp-te-lsp-error-info; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path/te:lsps/te:lsp" + "/te:lsp-provisioning-error-infos" + "/te:lsp-provisioning-error-info" { when "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path/te:lsps/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description "Augmentation for RSVP-TE per path error reason"; uses rsvp-te-lsp-error-info; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path/te:lsps/te:lsp" { when "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path/te:lsps/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; Beeram, et al. Expires January 8, 2020 [Page 28] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } description "RSVP-TE generic data augmentation pertaining to specific TE LSP"; uses rsvp-te-lsp-properties; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path" + "/te:lsp-provisioning-error-infos" + "/te:lsp-provisioning-error-info" { description "Augmentation for RSVP-TE per path error reason"; uses rsvp-te-lsp-error-info; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path/te:lsps/te:lsp" + "/te:lsp-provisioning-error-infos" + "/te:lsp-provisioning-error-info" { when "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path/te:lsps/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description "Augmentation for RSVP-TE per LSP error reason"; uses rsvp-te-lsp-error-info; } /* TE interface augmentation */ augment "/te:te/te-dev:interfaces/te-dev:interface" { description "RSVP-TE generic data augmentation pertaining to specific TE interface"; } } Figure 4: RSVP TE generic YANG module 2.3.2. RSVP-TE MPLS YANG Module The RSVP-TE MPLS YANG module "ietf-rsvp-te-mpls" imports the following module(s): o ietf-rsvp defined in [I-D.ietf-teas-yang-rsvp] o ietf-routing-types defined in [RFC8294] Beeram, et al. Expires January 8, 2020 [Page 29] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 o ietf-te-mpls-types defined in [I-D.ietf-teas-yang-te-types] o ietf-te and ietf-te-dev defined in [I-D.ietf-teas-yang-te] This module references the following documents: [I-D.ietf-teas-yang-rsvp], [RFC8349], [I-D.ietf-teas-yang-te-types], [I-D.ietf-teas-yang-te], [RFC3209]. file "ietf-rsvp-te-mpls@2019-07-06.yang" module ietf-rsvp-te-mpls { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-rsvp-te-mpls"; prefix "rsvp-te-mpls"; import ietf-rsvp { prefix "rsvp"; reference "draft-ietf-teas-yang-rsvp: A YANG Data Model for Resource Reservation Protocol (RSVP)"; } import ietf-routing { prefix "rt"; reference "RFC8349: A YANG Data Model for Routing Management"; } import ietf-te-packet-types { prefix "te-packet-types"; reference "draft-ietf-teas-yang-te-types: A YANG Data Model for Common Traffic Engineering Types"; } import ietf-te-types { prefix "te-types"; reference "draft-ietf-teas-yang-te-types: A YANG Data Model for Common Traffic Engineering Types"; } import ietf-te { prefix "te"; reference "draft-ietf-teas-yang-te: A YANG Data Model for Traffic Engineering Tunnels and Interfaces"; } import ietf-te-device { prefix "te-dev"; reference "draft-ietf-teas-yang-te: A YANG Data Model for Traffic Beeram, et al. Expires January 8, 2020 [Page 30] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 Engineering Tunnels and Interfaces"; } organization "IETF Traffic Engineering Architecture and Signaling (TEAS) Working Group"; contact "WG Web: WG List: WG Chair: Lou Berger WG Chair: Vishnu Pavan Beeram Editor: Vishnu Pavan Beeram Editor: Tarek Saad Editor: Rakesh Gandhi Editor: Xufeng Liu Editor: Igor Bryskin Editor: Himanshu Shah "; description "Latest update to MPLS RSVP-TE YANG data model. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2018 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents Beeram, et al. Expires January 8, 2020 [Page 31] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; // RFC Ed.: replace XXXX with actual RFC number and remove this // note. // RFC Ed.: update the date below with the date of RFC publication // and remove this note. revision "2019-07-06" { description "Update to MPLS RSVP-TE YANG initial revision."; reference "RFCXXXX: A YANG Data Model for RSVP-TE Protocol"; } /* RSVP-TE MPLS LSPs groupings */ grouping lsp-attributes-flags-mpls-config { description "Configuration parameters relating to RSVP-TE MPLS LSP attribute flags"; } grouping lsp-session-attributes-obj-flags-mpls-config { description "Configuration parameters relating to RSVP-TE MPLS LSP session attribute flags"; reference "RFC4859: Registry for RSVP-TE Session Flags"; leaf-list session-attribute { when "../session-attribute = 'te-types:bandwidth-protection-desired' or ../session-attribute = 'te-types:soft-preemption-desired'"; type identityref { base te-types:session-attributes-flags; } description "RSVP session attributes flags"; reference "RFC4859: Registry for RSVP-TE Session Flags"; } } grouping tunnel-properties-mpls-config { description "Top level grouping for LSP properties."; uses lsp-session-attributes-obj-flags-mpls-config; uses lsp-attributes-flags-mpls-config; Beeram, et al. Expires January 8, 2020 [Page 32] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } grouping lsp-properties-mpls { description "Top level grouping for LSP properties."; uses lsp-session-attributes-obj-flags-mpls-config; uses lsp-attributes-flags-mpls-config; } /* End of RSVP-TE MPLS LSPs groupings */ /* MPLS RSVP-TE interface groupings */ grouping rsvp-te-interface-state { description "The RSVP-TE interface state grouping"; leaf over-subscribed-bandwidth { type te-packet-types:bandwidth-kbps; description "The amount of over-subscribed bandwidth on the interface"; } } grouping rsvp-te-interface-softpreemption-state { description "The RSVP-TE interface preeemptions state grouping"; container interface-softpreemption-state { description "The RSVP-TE interface preeemptions state grouping"; leaf soft-preempted-bandwidth { type te-packet-types:bandwidth-kbps; description "The amount of soft-preempted bandwidth on this interface"; } list lsps { key "source destination tunnel-id lsp-id "+ "extended-tunnel-id"; description "List of LSPs that are soft-preempted"; leaf source { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:source"; } description "Tunnel sender address extracted from SENDER_TEMPLATE object"; Beeram, et al. Expires January 8, 2020 [Page 33] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 reference "RFC3209"; } leaf destination { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:destination"; } description "Tunnel endpoint address extracted from SESSION object"; reference "RFC3209"; } leaf tunnel-id { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:tunnel-id"; } description "Tunnel identifier used in the SESSION that remains constant over the life of the tunnel."; reference "RFC3209"; } leaf lsp-id { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:lsp-id"; } description "Identifier used in the SENDER_TEMPLATE and the FILTER_SPEC that can be changed to allow a sender to share resources with itself."; reference "RFC3209"; } leaf extended-tunnel-id { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:extended-tunnel-id"; } description "Extended Tunnel ID of the LSP."; reference "RFC3209"; } leaf type { type leafref { path "/te:te/te:lsps-state/te:lsp/"+ "te:type"; Beeram, et al. Expires January 8, 2020 [Page 34] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } description "LSP type P2P or P2MP"; } } } } grouping bandwidth-mpls-constraints { description "Bandwidth constraints."; container bandwidth-mpls-constraints { description "Holds the bandwidth constraints properties"; leaf maximum-reservable { type te-packet-types:bandwidth-kbps; description "The maximum reservable bandwidth on the interface in kbps"; } leaf-list bc-value { type uint32 { range "0..4294967295"; } max-elements 8; description "The bandwidth constraint type"; } } } grouping bandwidth-constraint-values { description "Packet bandwidth contraints values"; choice value-type { description "Value representation"; case percentages { container perc-values { uses bandwidth-mpls-constraints; description "Percentage values"; } } case absolutes { container abs-values { uses bandwidth-mpls-constraints; description "Absolute values"; } Beeram, et al. Expires January 8, 2020 [Page 35] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } } } grouping bandwidth-mpls-reservable-config { description "Interface bandwidth reservable configuration grouping"; choice bandwidth-value { description "Reservable bandwidth configuration choice"; case absolute { leaf absolute-value { type te-packet-types:bandwidth-kbps; description "Absolute value of the bandwidth"; } } case percentage { leaf percent-value { type uint32 { range "0..4294967295"; } description "Percentage reservable bandwidth"; } description "The maximum reservable bandwidth on the interface"; } } choice bc-model-type { description "Reservable bandwidth percentage capacity values."; case bc-model-rdm { container bc-model-rdm { description "Russian Doll Model Bandwidth Constraints."; uses bandwidth-mpls-constraints; } } case bc-model-mam { container bc-model-mam { uses bandwidth-mpls-constraints; description "Maximum Allocation Model Bandwidth Constraints."; } } case bc-model-mar { container bc-model-mar { Beeram, et al. Expires January 8, 2020 [Page 36] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 uses bandwidth-mpls-constraints; description "Maximum Allocation with Reservation Model Bandwidth Constraints."; } } } } grouping bandwidth-mpls-reservable { description "Packet reservable bandwidth"; container bandwidth-mpls-reservable { description "Interface bandwidth reservable container"; uses bandwidth-mpls-reservable-config; } } /* End of RSVP-TE interface groupings */ /* RSVP-TE FRR groupings */ grouping rsvp-te-frr-auto-tunnel-backup-config { description "Auto-tunnel backup configuration grouping"; leaf auto-backup-protection { type identityref { base te-packet-types:backup-protection-type; } default te-packet-types:backup-protection-node-link; description "Describes whether the backup should offer protection against link, node, or either"; } leaf auto-backup-path-computation { type identityref { base te-types:path-computation-srlg-type; } description "FRR backup computation type"; } } grouping rsvp-te-frr-backups-config { description "Top level container for RSVP-TE FRR backup parameters"; choice type { Beeram, et al. Expires January 8, 2020 [Page 37] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 description "FRR backup tunnel type"; case static-tunnel { container static-backups { description "List of static backups"; list static-backup { key "backup-tunnel-name"; description "List of static backup tunnels that protect the RSVP-TE interface."; leaf backup-tunnel-name { type leafref { path "/te:te/te:tunnels/te:tunnel/te:name"; } description "FRR Backup tunnel name"; } } } } case auto-tunnel { container auto-tunnel-backups { description "Auto-tunnel choice"; uses rsvp-te-frr-auto-tunnel-backup-config; } } } } grouping rsvp-te-frr-backups { description "RSVP-TE facility backup grouping"; container rsvp-te-frr-backups { description "RSVP-TE facility backup properties"; uses rsvp-te-frr-backups-config; } } grouping lsp-backup-info-state { description "LSP backup information grouping"; leaf backup-tunnel-name { type string; description "If an LSP has an FRR backup LSP that can protect it, this field identifies the tunnel name of the backup LSP. Otherwise, this field is empty."; } leaf backup-frr-on { Beeram, et al. Expires January 8, 2020 [Page 38] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 type uint8; description "Whether currently this backup is carrying traffic"; } leaf backup-protected-lsp-num { type uint32; description "Number of LSPs protected by this backup"; } } grouping lsp-backup-info { description "Backup/bypass LSP related information"; container backup-info { description "backup information"; uses lsp-backup-info-state; } } grouping fast-reroute-local-revertive-config { description "RSVP-TE FRR local revertive grouping"; leaf rsvp-frr-local-revert-delay { type uint32; description "Time to wait after primary link is restored before node attempts local revertive procedures."; } } /*** End of RSVP-TE FRR backup information ***/ grouping fast-reroute-local-revertive { description "Top level grouping for globals properties"; container fast-reroute-local-revertive { description "RSVP-TE FRR local revertive container"; uses fast-reroute-local-revertive-config; } } /* RSVP-TE global properties */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp" { description "RSVP-TE augmentation to RSVP globals"; uses fast-reroute-local-revertive; Beeram, et al. Expires January 8, 2020 [Page 39] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 } /* Linkage to the base RSVP all interfaces */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces" { description "Augmentations for RSVP-TE MPLS all interfaces properties"; /* To be added */ } /* Linkage to per RSVP interface */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:interfaces/" + "rsvp:interface" { description "Augmentations for RSVP-TE MPLS per interface properties"; /* To be added */ } /* add augmentation for sessions neighbors */ augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:globals/" + "rsvp:sessions" { description "Augmentation for RSVP-TE MPLS sessions"; /* To be added */ } augment "/rt:routing/rt:control-plane-protocols/" + "rt:control-plane-protocol/rsvp:rsvp/rsvp:neighbors" { description "Augmentations for RSVP-TE MPLS neighbors properties"; /* To be added */ } /** * Augmentation to TE generic module */ augment "/te:te/te:tunnels/te:tunnel" { description "Augmentations for RSVP-TE MPLS TE tunnel properties"; uses tunnel-properties-mpls-config; } augment "/te:te/te:lsps-state/te:lsp" { when "/te:te/te:lsps-state/te:lsp" + "/te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description Beeram, et al. Expires January 8, 2020 [Page 40] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 "When the signaling protocol is RSVP-TE "; } description "RSP-TE MPLS LSP state properties"; uses lsp-properties-mpls; uses lsp-backup-info; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-primary-paths" + "/te:p2p-primary-path/te:lsps/te:lsp" { when "/te:te/te:tunnels/te:tunnel" + "/te:p2p-secondary-paths/te:p2p-secondary-path/" + "te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description "RSVP-TE MPLS LSP state properties"; uses lsp-properties-mpls; uses lsp-backup-info; } augment "/te:te/te:tunnels/te:tunnel/te:p2p-secondary-paths" + "/te:p2p-secondary-path/te:lsps/te:lsp" { when "/te:te/te:tunnels/te:tunnel" + "/te:p2p-secondary-paths/te:p2p-secondary-path/" + "te:path-setup-protocol = 'te-types:path-setup-rsvp'" { description "When the signaling protocol is RSVP-TE "; } description "RSVP-TE MPLS LSP state properties"; uses lsp-properties-mpls; uses lsp-backup-info; } augment "/te:te/te-dev:interfaces/te-dev:interface" { description "RSVP reservable bandwidth configuration properties"; uses bandwidth-mpls-reservable; } augment "/te:te/te-dev:interfaces/te-dev:interface" { description "RSVP reservable bandwidth configuration properties"; uses rsvp-te-frr-backups; } } Beeram, et al. Expires January 8, 2020 [Page 41] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 Figure 5: RSVP TE MPLS YANG module 3. IANA Considerations This document registers the following URIs in the IETF XML registry [RFC3688]. Following the format in [RFC3688], the following registration is requested to be made. URI: urn:ietf:params:xml:ns:yang:ietf-rsvp-te XML: N/A, the requested URI is an XML namespace. URI: urn:ietf:params:xml:ns:yang:ietf-rsvp-te-mpls XML: N/A, the requested URI is an XML namespace. This document registers two YANG modules in the YANG Module Names registry [RFC6020]. name: ietf-rsvp namespace: urn:ietf:params:xml:ns:yang:ietf-rsvp-te prefix: ietf-rsvp reference: RFCXXXX name: ietf-rsvp-te namespace: urn:ietf:params:xml:ns:yang:ietf-rsvp-te-mpls prefix: ietf-rsvp-te reference: RFCXXXX 4. Security Considerations The YANG module defined in this memo is designed to be accessed via the NETCONF protocol [RFC6241]. The lowest NETCONF layer is the secure transport layer and the mandatory-to-implement secure transport is SSH [RFC6242]. The NETCONF access control model [RFC8341] provides means to restrict access for particular NETCONF users to a pre-configured subset of all available NETCONF protocol operations and content. There are a number of data nodes defined in the YANG module(s) defined in this document which are writable/creatable/deletable (i.e., config true, which is the default). These data nodes may be considered sensitive or vulnerable in some network environments. Write operations (e.g., ) to these data nodes without proper protection can have a negative effect on network operations. /rt:routing/rt:control-plane-protocols/rt:control-plane- protocol/rsvp:rsvp/globals: The data nodes defined defined in this Beeram, et al. Expires January 8, 2020 [Page 42] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 document and under this branch are applicable device-wide and can affect all RSVP established sessions. Unauthorized access to this container can potentially cause disruptive event(s) on all established sessions. /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol/ rsvp:rsvp/rsvp:globals/rsvp:sessions: The data nodes defined in this document and under this branch are applicable to one or all RSVP-TE session(s). Unauthorized access to this container can potentially affect the impacted RSVP session(s). /rt:routing/rt:control-plane-protocols/rt:control-plane- protocol/rsvp:rsvp/rsvp:interfaces: The data nodes defined defined in this document and under this branch are applicable to one or all RSVP interfaces. Unauthorized access to this container can potentially affect established session(s) over impacted interface(s). 5. Acknowledgement The authors would like to thank Lou Berger for reviewing and providing valuable feedback on this document. 6. Contributors Xia Chen Huawei Technologies Email: jescia.chenxia@huawei.com Raqib Jones Brocade Email: raqib@Brocade.com Bin Wen Comcast Email: Bin_Wen@cable.comcast.com 7. References Beeram, et al. Expires January 8, 2020 [Page 43] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 7.1. Normative References [I-D.ietf-teas-yang-rsvp] Beeram, V., Saad, T., Gandhi, R., Liu, X., and I. Bryskin, "A YANG Data Model for Resource Reservation Protocol (RSVP)", draft-ietf-teas-yang-rsvp-11 (work in progress), July 2019. [I-D.ietf-teas-yang-te] Saad, T., Gandhi, R., Liu, X., Beeram, V., and I. Bryskin, "A YANG Data Model for Traffic Engineering Tunnels and Interfaces", draft-ietf-teas-yang-te-21 (work in progress), April 2019. [I-D.ietf-teas-yang-te-types] Saad, T., Gandhi, R., Liu, X., Beeram, V., and I. Bryskin, "Traffic Engineering Common YANG Types", draft-ietf-teas- yang-te-types-10 (work in progress), July 2019. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC2205] Braden, R., Ed., Zhang, L., Berson, S., Herzog, S., and S. Jamin, "Resource ReSerVation Protocol (RSVP) -- Version 1 Functional Specification", RFC 2205, DOI 10.17487/RFC2205, September 1997, . [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, October 2010, . [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011, . [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011, . Beeram, et al. Expires January 8, 2020 [Page 44] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 [RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991, DOI 10.17487/RFC6991, July 2013, . [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [RFC8294] Liu, X., Qu, Y., Lindem, A., Hopps, C., and L. Berger, "Common YANG Data Types for the Routing Area", RFC 8294, DOI 10.17487/RFC8294, December 2017, . [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, March 2018, . [RFC8349] Lhotka, L., Lindem, A., and Y. Qu, "A YANG Data Model for Routing Management (NMDA Version)", RFC 8349, DOI 10.17487/RFC8349, March 2018, . 7.2. Informative References [RFC2210] Wroclawski, J., "The Use of RSVP with IETF Integrated Services", RFC 2210, DOI 10.17487/RFC2210, September 1997, . [RFC3209] Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V., and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP Tunnels", RFC 3209, DOI 10.17487/RFC3209, December 2001, . Beeram, et al. Expires January 8, 2020 [Page 45] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 [RFC4859] Farrel, A., "Codepoint Registry for the Flags Field in the Resource Reservation Protocol-Traffic Engineering (RSVP- TE) Session Attribute Object", RFC 4859, DOI 10.17487/RFC4859, April 2007, . [RFC4920] Farrel, A., Ed., Satyanarayana, A., Iwata, A., Fujita, N., and G. Ash, "Crankback Signaling Extensions for MPLS and GMPLS RSVP-TE", RFC 4920, DOI 10.17487/RFC4920, July 2007, . [RFC5420] Farrel, A., Ed., Papadimitriou, D., Vasseur, JP., and A. Ayyangarps, "Encoding of Attributes for MPLS LSP Establishment Using Resource Reservation Protocol Traffic Engineering (RSVP-TE)", RFC 5420, DOI 10.17487/RFC5420, February 2009, . [RFC7570] Margaria, C., Ed., Martinelli, G., Balls, S., and B. Wright, "Label Switched Path (LSP) Attribute in the Explicit Route Object (ERO)", RFC 7570, DOI 10.17487/RFC7570, July 2015, . Authors' Addresses Vishnu Pavan Beeram Juniper Networks Email: vbeeram@juniper.net Tarek Saad Juniper Networks Email: tsaad@juniper.net Rakesh Gandhi Cisco Systems, Inc. Email: rgandhi@cisco.com Xufeng Liu Volta Networks Email: xufeng.liu.ietf@gmail.com Beeram, et al. Expires January 8, 2020 [Page 46] Internet-Draft RSVP-TE Protocol YANG Data Model July 2019 Igor Bryskin Huawei Technologies Email: Igor.Bryskin@huawei.com Himanshu Shah Ciena Email: hshah@ciena.com Beeram, et al. Expires January 8, 2020 [Page 47]