draft-ietf-core-yang-cbor-03.txt   draft-ietf-core-yang-cbor-04.txt 
Internet Engineering Task Force M. Veillette, Ed. Internet Engineering Task Force M. Veillette, Ed.
Internet-Draft Trilliant Networks Inc. Internet-Draft Trilliant Networks Inc.
Intended status: Standards Track A. Pelov, Ed. Intended status: Standards Track A. Pelov, Ed.
Expires: May 4, 2017 Acklio Expires: August 11, 2017 Acklio
A. Somaraju A. Somaraju
Tridonic GmbH & Co KG Tridonic GmbH & Co KG
R. Turner R. Turner
Landis+Gyr Landis+Gyr
A. Minaburo A. Minaburo
Acklio Acklio
October 31, 2016 February 07, 2017
CBOR Encoding of Data Modeled with YANG CBOR Encoding of Data Modeled with YANG
draft-ietf-core-yang-cbor-03 draft-ietf-core-yang-cbor-04
Abstract Abstract
This document defines encoding rules for serializing configuration This document defines encoding rules for serializing configuration
data, state data, RPC input and RPC output, Action input, Action data, state data, RPC input and RPC output, Action input, Action
output and notifications defined within YANG modules using the output and notifications defined within YANG modules using the
Concise Binary Object Representation (CBOR) [RFC7049]. Concise Binary Object Representation (CBOR) [RFC7049].
Status of This Memo Status of This Memo
skipping to change at page 1, line 40 skipping to change at page 1, line 40
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 4, 2017. This Internet-Draft will expire on August 11, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology and Notation . . . . . . . . . . . . . . . . . . 3 2. Terminology and Notation . . . . . . . . . . . . . . . . . . 3
2.1. CBOR diagnostic notation . . . . . . . . . . . . . . . . 4 2.1. YANG Schema Item iDentifier (SID) . . . . . . . . . . . . 4
3. Properties of the CBOR Encoding . . . . . . . . . . . . . . . 5 2.2. CBOR diagnostic notation . . . . . . . . . . . . . . . . 5
4. Encoding of YANG Data Node Instances . . . . . . . . . . . . 6 3. Properties of the CBOR Encoding . . . . . . . . . . . . . . . 6
4.1. The 'leaf' Data Node . . . . . . . . . . . . . . . . . . 6 4. Encoding of YANG Data Node Instances . . . . . . . . . . . . 7
4.2. The 'container' Data Node . . . . . . . . . . . . . . . . 6 4.1. The 'leaf' Data Node . . . . . . . . . . . . . . . . . . 7
4.2.1. SIDs as keys . . . . . . . . . . . . . . . . . . . . 7 4.2. The 'container' Data Node . . . . . . . . . . . . . . . . 7
4.2.2. Member names as keys . . . . . . . . . . . . . . . . 8 4.2.1. SIDs as keys . . . . . . . . . . . . . . . . . . . . 8
4.3. The 'leaf-list' Data Node . . . . . . . . . . . . . . . . 9 4.2.2. Member names as keys . . . . . . . . . . . . . . . . 9
4.4. The 'list' Data Node . . . . . . . . . . . . . . . . . . 9 4.3. The 'leaf-list' Data Node . . . . . . . . . . . . . . . . 10
4.4. The 'list' Data Node . . . . . . . . . . . . . . . . . . 10
4.4.1. SIDs as keys . . . . . . . . . . . . . . . . . . . . 10 4.4.1. SIDs as keys . . . . . . . . . . . . . . . . . . . . 10
4.4.2. Member names as keys . . . . . . . . . . . . . . . . 13 4.4.2. Member names as keys . . . . . . . . . . . . . . . . 13
4.5. The 'anydata' Data Node . . . . . . . . . . . . . . . . . 14 4.5. The 'anydata' Data Node . . . . . . . . . . . . . . . . . 14
4.6. The 'anyxml' Data Node . . . . . . . . . . . . . . . . . 15 4.6. The 'anyxml' Data Node . . . . . . . . . . . . . . . . . 16
5. Representing YANG Data Types in CBOR . . . . . . . . . . . . 15 5. Representing YANG Data Types in CBOR . . . . . . . . . . . . 16
5.1. The unsigned integer Types . . . . . . . . . . . . . . . 15 5.1. The unsigned integer Types . . . . . . . . . . . . . . . 16
5.2. The integer Types . . . . . . . . . . . . . . . . . . . . 15 5.2. The integer Types . . . . . . . . . . . . . . . . . . . . 17
5.3. The 'decimal64' Type . . . . . . . . . . . . . . . . . . 16 5.3. The 'decimal64' Type . . . . . . . . . . . . . . . . . . 17
5.4. The 'string' Type . . . . . . . . . . . . . . . . . . . . 16 5.4. The 'string' Type . . . . . . . . . . . . . . . . . . . . 17
5.5. The 'boolean' Type . . . . . . . . . . . . . . . . . . . 17 5.5. The 'boolean' Type . . . . . . . . . . . . . . . . . . . 18
5.6. The 'enumeration' Type . . . . . . . . . . . . . . . . . 17 5.6. The 'enumeration' Type . . . . . . . . . . . . . . . . . 18
5.7. The 'bits' Type . . . . . . . . . . . . . . . . . . . . . 18 5.7. The 'bits' Type . . . . . . . . . . . . . . . . . . . . . 19
5.8. The 'binary' Type . . . . . . . . . . . . . . . . . . . . 18 5.8. The 'binary' Type . . . . . . . . . . . . . . . . . . . . 20
5.9. The 'leafref' Type . . . . . . . . . . . . . . . . . . . 19 5.9. The 'leafref' Type . . . . . . . . . . . . . . . . . . . 20
5.10. The 'identityref' Type . . . . . . . . . . . . . . . . . 19 5.10. The 'identityref' Type . . . . . . . . . . . . . . . . . 21
5.10.1. SIDs as identityref . . . . . . . . . . . . . . . . 20 5.10.1. SIDs as identityref . . . . . . . . . . . . . . . . 21
5.10.2. Name as identityref . . . . . . . . . . . . . . . . 20 5.10.2. Name as identityref . . . . . . . . . . . . . . . . 22
5.11. The 'empty' Type . . . . . . . . . . . . . . . . . . . . 21 5.11. The 'empty' Type . . . . . . . . . . . . . . . . . . . . 22
5.12. The 'union' Type . . . . . . . . . . . . . . . . . . . . 21 5.12. The 'union' Type . . . . . . . . . . . . . . . . . . . . 23
5.13. The 'instance-identifier' Type . . . . . . . . . . . . . 22 5.13. The 'instance-identifier' Type . . . . . . . . . . . . . 24
5.13.1. SIDs as instance-identifier . . . . . . . . . . . . 22 5.13.1. SIDs as instance-identifier . . . . . . . . . . . . 24
5.13.2. Names as instance-identifier . . . . . . . . . . . . 25 5.13.2. Names as instance-identifier . . . . . . . . . . . . 27
6. Security Considerations . . . . . . . . . . . . . . . . . . . 26 6. Security Considerations . . . . . . . . . . . . . . . . . . . 28
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 28
7.1. Tags Registry . . . . . . . . . . . . . . . . . . . . . . 26 7.1. Tags Registry . . . . . . . . . . . . . . . . . . . . . . 28
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 26 8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 28
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 27 9. References . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.1. Normative References . . . . . . . . . . . . . . . . . . 27 9.1. Normative References . . . . . . . . . . . . . . . . . . 29
9.2. Informative References . . . . . . . . . . . . . . . . . 27 9.2. Informative References . . . . . . . . . . . . . . . . . 29
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 28 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 30
1. Introduction 1. Introduction
The specification of the YANG 1.1 data modelling language [RFC7950] The specification of the YANG 1.1 data modelling language [RFC7950]
defines an XML encoding for data instances, i.e. contents of defines an XML encoding for data instances, i.e. contents of
configuration datastores, state data, RPC inputs and outputs, action configuration datastores, state data, RPC inputs and outputs, action
inputs and outputs, and event notifications. inputs and outputs, and event notifications.
A new set of encoding rules has been defined to allow the use of the A new set of encoding rules has been defined to allow the use of the
same data models in environments based on the JavaScript Object same data models in environments based on the JavaScript Object
skipping to change at page 3, line 44 skipping to change at page 3, line 45
o action o action
o anydata o anydata
o anyxml o anyxml
o data node o data node
o data tree o data tree
o feature
o identity
o module o module
o notification o notification
o RPC o RPC
o schema node o schema node
o schema tree o schema tree
o submodule o submodule
The following terms are defined in [RFC7951]: The following terms are defined in [RFC7951]:
o member name o member name
o name of an identity o name of an identity
skipping to change at page 4, line 22 skipping to change at page 4, line 26
o name of an identity o name of an identity
o namespace-qualified o namespace-qualified
This specification also makes use of the following terminology: This specification also makes use of the following terminology:
o child: A schema node defined within a collection such as a o child: A schema node defined within a collection such as a
container, a list, a case, a notification, an RPC input, an RPC container, a list, a case, a notification, an RPC input, an RPC
output, an action input, an action output. output, an action input, an action output.
o delta : Difference between the SID assigned to the current schema o delta: Difference between the current SID and a reference SID. A
node and the SID assigned to the parent. reference SID is defined for each context for which deltas are
used.
o item: A schema node, an identity, a module, a submodule or a
feature defined using the YANG modeling language.
o parent: The collection in which a schema node is defined. o parent: The collection in which a schema node is defined.
o structured identifier or SID: Unsigned integer used to identify o YANG Schema Item iDentifier (SID): Unsigned integer used to
different YANG items. identify different YANG items.
2.1. CBOR diagnostic notation 2.1. YANG Schema Item iDentifier (SID)
Some of the items defined in YANG [RFC7950] require the use of a
unique identifier. In both NETCONF [RFC6241] and RESTCONF [RFC8040],
these identifiers are implemented using names. To allow the
implementation of data models defined in YANG in constrained devices
and constrained networks, a more compact method to identify YANG
items is required. This compact identifier, called YANG Schema Item
iDentifier (SID), is encoded using an unsigned integer. The
following items are identified using SIDs:
o identities
o data nodes
o RPCs and associated input(s) and output(s)
o actions and associated input(s) and output(s)
o notifications and associated information
o YANG modules, submodules and features
To minimize its size, in certain positions, SIDs are represented
using a (signed) delta from a reference SID and the current SID.
Conversion from SIDs to deltas and back to SIDs are stateless
processes solely based on the data serialized or deserialized.
Mechanisms and processes used to assign SIDs to YANG items and to
guarantee their uniqueness is outside the scope of the present
specification. If SIDs are to be used, the present specification is
used in conjunction with a specification defining this management.
One example for such a specification is under development as
[I-D.ietf-core-sid].
2.2. CBOR diagnostic notation
Within this document, CBOR binary contents are represented using an Within this document, CBOR binary contents are represented using an
equivalent textual form called CBOR diagnostic notation as defined in equivalent textual form called CBOR diagnostic notation as defined in
[RFC7049] section 6. This notation is used strictly for [RFC7049] section 6. This notation is used strictly for
documentation purposes and is never used in the data serialization. documentation purposes and is never used in the data serialization.
Table 1 below provides a summary of this notation. Table 1 below provides a summary of this notation.
+----------+------+--------------------------+-----------+----------+ +----------+------+--------------------------+-----------+----------+
| CBOR | CBOR | Diagnostic notation | Example | CBOR | | CBOR | CBOR | Diagnostic notation | Example | CBOR |
| content | type | | | encoding | | content | type | | | encoding |
skipping to change at page 5, line 38 skipping to change at page 6, line 38
| Null | 7/22 | null | null | f6 | | Null | 7/22 | null | null | f6 |
| Not | 7/23 | undefined | undefined | f7 | | Not | 7/23 | undefined | undefined | f7 |
| assigned | | | | | | assigned | | | | |
+----------+------+--------------------------+-----------+----------+ +----------+------+--------------------------+-----------+----------+
Table 1: CBOR diagnostic notation summary Table 1: CBOR diagnostic notation summary
The following extensions to the CBOR diagnostic notation are The following extensions to the CBOR diagnostic notation are
supported: supported:
o Comments can be added to the end of each line. Any characters o Any text within and including a pair of slashes is considered a
after a Pound sign ('#') outside of a string, up to the end of the comment.
line, are treated as a comment.
o Deltas are represented as numbers preceded by a '+' or '-' sign. o Deltas are visualized as numbers preceded by a '+' or '-' sign.
The use of the '+' sign for positive deltas represents an The use of the '+' sign for positive deltas represents an
extension to the CBOR diagnostic notation as defined by [RFC7049] extension to the CBOR diagnostic notation as defined by [RFC7049]
section 6. section 6.
3. Properties of the CBOR Encoding 3. Properties of the CBOR Encoding
This document defines CBOR encoding rules for YANG schema trees and This document defines CBOR encoding rules for YANG schema trees and
their subtrees. their subtrees.
Basic schema nodes such as leaf, leaf-list, list, anydata and anyxml Basic schema nodes such as leaf, leaf-list, list, anydata and anyxml
can be encoded standalone. In this case, only the value of this can be encoded standalone. In this case, only the value of this
schema node is encoded in CBOR. Identification of this value needs schema node is encoded in CBOR. Identification of this value needs
to be provided by some external means when required. to be provided by some external means when required.
A collection such as container, list instance, notification, RPC A collection such as container, list instance, notification, RPC
input, RPC output, action input and action output is serialized using input, RPC output, action input and action output is serialized using
a CBOR map in which each child schema node is encoded using a key and a CBOR map in which each child schema node is encoded using a key and
a value. This specification supports two type of keys; SID as a value. This specification supports two type of CBOR keys; YANG
defined in [I-D.ietf-core-sid] and member names as defined in Schema Item iDentifier (SID) as defined in Section 2.1 and member
[RFC7951]. Each of these key type is encoded using a specific CBOR names as defined in [RFC7951]. Each of these key types is encoded
type which allows their interpretation during the deserialization using a specific CBOR type which allows their interpretation during
process. The end user of this mapping specification (e.g. RESFCONF, the deserialization process. The end user of this mapping
CoMI) can mandate the use of a specific key type. specification (e.g. RESTCONF [RFC8040], CoMI [I-D.ietf-core-comi])
can mandate the use of a specific key type.
In order to minimize the size of the encoded data, the proposed In order to minimize the size of the encoded data, the proposed
mapping avoid any unnecessary meta-information beyond those natively mapping avoids any unnecessary meta-information beyond those natively
supported by CBOR. For instance, CBOR tags are used solely in the supported by CBOR. For instance, CBOR tags are used solely in the
case of the union datatype to distinguish explicitly the use of case of anyxml data nodes and the union datatype to distinguish
different YANG datatypes encoded using the same CBOR major type. explicitly the use of different YANG datatypes encoded using the same
CBOR major type.
It is expected that application entities generating and decoding CBOR
contents have enough knowledge about the information processed in
order to perform the expected task without the need of such extra
meta-information.
4. Encoding of YANG Data Node Instances 4. Encoding of YANG Data Node Instances
Schema node instances defined using the YANG modeling language are Schema node instances defined using the YANG modeling language are
encoded using CBOR [RFC7049] based on the rules defined in this encoded using CBOR [RFC7049] based on the rules defined in this
section. We assume that the reader is already familiar with both section. We assume that the reader is already familiar with both
YANG [RFC7950] and CBOR [RFC7049]. YANG [RFC7950] and CBOR [RFC7049].
4.1. The 'leaf' Data Node 4.1. The 'leaf' Data Node
Leafs MUST be encoded based on the encoding rules specified in Leafs MUST be encoded based on the encoding rules specified in
Section 5. Section 5.
4.2. The 'container' Data Node 4.2. The 'container' Data Node
Collections such as containers, list instances, notifications, RPC Collections such as containers, list instances, notifications, RPC
inputs, RPC outputs, action inputs and action outputs MUST be encoded inputs, RPC outputs, action inputs and action outputs MUST be encoded
using a CBOR map data item (major type 5). A map is comprised of using a CBOR map data item (major type 5). A map is comprised of
pairs of data items, with each data item consisting of a key and a pairs of data items, with each data item consisting of a key and a
value. Each key within the CBOR map is set to a data node value. Each key within the CBOR map is set to a data node
identifier, each value is set to the value of this data node identifier, each value is set to the value of this data node instance
instance. according to the instance datatype.
This specification supports two type of keys; SID as defined in This specification supports two type of CBOR keys; SID as defined in
[I-D.ietf-core-sid] encoded using CBOR unsigned or signed integers Section 2.1 encoded as deltas and member names as defined in
and member names as defined in [RFC7951] encoded using CBOR text [RFC7951] encoded using CBOR text strings. The use of CBOR byte
strings. The use of CBOR byte strings for keys is reserved for strings for keys is reserved for future extensions.
future extensions.
4.2.1. SIDs as keys 4.2.1. SIDs as keys
Keys implemented using SIDs MUST be encoded using a CBOR unsigned Keys implemented using SIDs MUST be encoded using a CBOR unsigned
integer (major type 0) or CBOR signed integer (major type 1), integer (major type 0) or CBOR negative integer (major type 1),
depending on the actual value. Keys are set to the delta of the depending on the actual value. Keys are represented as the delta of
associated SID, delta values are computed as follows: the associated SID, delta values are computed as follows:
o The delta value is equal to the SID of the current schema node o The delta value is equal to the SID of the current schema node
minus the SID of the parent schema node. When no parent exists in minus the SID of the parent schema node. When no parent exists in
the context of use of this container, the delta is set to the SID the context of use of this container, the delta is set to the SID
of the current schema node (a parent with SID equal to zero is of the current schema node (i.e., a parent with SID equal to zero
assumed). is assumed).
o Delta values may result in a negative number, clients and servers o Delta values may result in a negative number, clients and servers
MUST support negative deltas. MUST support both unsigned and negative deltas.
The following example shows the encoding of the 'system' container The following example shows the encoding of a 'system' container
using the SIDs defined in [I-D.ietf-core-sid] Appendix C. instance.
Definition example from [RFC7317]: Definition example from [RFC7317]:
typedef date-and-time { typedef date-and-time {
type string { type string {
pattern '\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?(Z|[\+\-] pattern '\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d+)?(Z|[\+\-]
\d{2}:\d{2})'; \d{2}:\d{2})';
} }
} }
container system { container clock {
leaf hostname { leaf current-datetime {
type inet:domain-name; type date-and-time;
}
container clock {
leaf current-datetime {
type date-and-time;
}
leaf boot-datetime { leaf boot-datetime {
type date-and-time; type date-and-time;
}
} }
} }
CBOR diagnostic notation: CBOR diagnostic notation:
{ {
1717 : { # clock (SID 1717) 1717 : { / clock (SID 1717) /
+2 : "2015-10-02T14:47:24Z-05:00", # current-datetime (SID 1719) +2 : "2015-10-02T14:47:24Z-05:00", / current-datetime (SID 1719) /
+1 : "2015-09-15T09:12:58Z-05:00" # boot-datetime (SID 1718) +1 : "2015-09-15T09:12:58Z-05:00" / boot-datetime (SID 1718) /
}
} }
}
CBOR encoding: CBOR encoding:
a1 # map(1) a1 # map(1)
19 06b5 # unsigned(1717) 19 06b5 # unsigned(1717)
a2 # map(2) a2 # map(2)
02 # unsigned(2) 02 # unsigned(2)
78 1a # text(26) 78 1a # text(26)
323031352d31302d30325431343a34373a32345a2d30353a3030 323031352d31302d30325431343a34373a32345a2d30353a3030
01 # unsigned(1) 01 # unsigned(1)
skipping to change at page 8, line 35 skipping to change at page 9, line 25
4.2.2. Member names as keys 4.2.2. Member names as keys
Keys implemented using member names MUST be encoded using a CBOR text Keys implemented using member names MUST be encoded using a CBOR text
string data item (major type 3). A namespace-qualified member name string data item (major type 3). A namespace-qualified member name
MUST be used for all members of a top-level collection, and then also MUST be used for all members of a top-level collection, and then also
whenever the namespaces of the schema node and its parent are whenever the namespaces of the schema node and its parent are
different. In all other cases, the simple form of the member name different. In all other cases, the simple form of the member name
MUST be used. Names and namespaces are defined in [RFC7951] section MUST be used. Names and namespaces are defined in [RFC7951] section
4. 4.
The following example shows the encoding of the 'system' container The following example shows the encoding of a 'system' container
using names. This example is described in Section 4.2.1. instance using names. This example is described in Section 4.2.1.
CBOR diagnostic notation: CBOR diagnostic notation:
{ {
"ietf-system:clock" : { "ietf-system:clock" : {
"current-datetime" : "2015-10-02T14:47:24Z-05:00", "current-datetime" : "2015-10-02T14:47:24Z-05:00",
"boot-datetime" : "2015-09-15T09:12:58Z-05:00" "boot-datetime" : "2015-09-15T09:12:58Z-05:00"
} }
} }
skipping to change at page 9, line 24 skipping to change at page 10, line 11
626f6f742d6461746574696d65 # "boot-datetime" 626f6f742d6461746574696d65 # "boot-datetime"
78 1a # text(26) 78 1a # text(26)
323031352d30392d31355430393a31323a35385a2d30353a3030 323031352d30392d31355430393a31323a35385a2d30353a3030
4.3. The 'leaf-list' Data Node 4.3. The 'leaf-list' Data Node
A leaf-list MUST be encoded using a CBOR array data item (major type A leaf-list MUST be encoded using a CBOR array data item (major type
4). Each entry of this array MUST be encoded using the rules defined 4). Each entry of this array MUST be encoded using the rules defined
by the YANG type specified. by the YANG type specified.
The following example shows the encoding the 'search' leaf-list The following example shows the encoding a 'search' leaf-list
containing the two entries, "ietf.org" and "ieee.org". instance containing the two entries, "ietf.org" and "ieee.org".
Definition example [RFC7317]: Definition example [RFC7317]:
typedef domain-name { typedef domain-name {
type string { type string {
length "1..253"; length "1..253";
pattern '((([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9].) pattern '((([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9].)
*([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9]\.? *([a-zA-Z0-9_]([a-zA-Z0-9\-_]){0,61})?[a-zA-Z0-9]\.?
)|\.'; )|\.';
} }
skipping to change at page 10, line 7 skipping to change at page 10, line 43
4.4. The 'list' Data Node 4.4. The 'list' Data Node
A list MUST be encoded using a CBOR array data item (major type 4). A list MUST be encoded using a CBOR array data item (major type 4).
Each list instance within this CBOR array is encoded using a CBOR map Each list instance within this CBOR array is encoded using a CBOR map
data item (major type 5) based on the same rules as a YANG container data item (major type 5) based on the same rules as a YANG container
as defined in Section 4.2. as defined in Section 4.2.
4.4.1. SIDs as keys 4.4.1. SIDs as keys
The follwoing example show the encoding a the 'server' list using the The following example show the encoding of a 'server' list instance
SIDs defined in [I-D.ietf-core-sid] Appendix C. It is important to using SIDs. It is important to note that the protocol or method
note that the protocol or method using this mapping may carry a using this mapping may carry a parent SID or may have the knowledge
parent SID or may have the knowledge of this parent SID based on its of this parent SID based on its context. In these cases, delta
context. In these cases, delta encoding can be performed based on encoding can be performed based on this parent SID which minimizes
this parent SID which minimizes the size of the encoded data. the size of the encoded data.
The following example shows the encoding of the 'server' list
containing two enties. SIDs used in this example are defined in
[I-D.ietf-core-sid] Appendix C. It is important to note that the
protocol or method using this mapping may carry a parent SID or may
have the knowledge of this parent SID based on its context. In these
cases, delta encoding can be performed based on this parent SID which
minimizes the size of the encoded data.
Definition example from [RFC7317]: Definition example from [RFC7317]:
list server { list server {
key name; key name;
leaf name { leaf name {
type string; type string;
} }
choice transport { choice transport {
skipping to change at page 12, line 7 skipping to change at page 12, line 7
leaf prefer { leaf prefer {
type boolean; type boolean;
default false; default false;
} }
} }
CBOR diagnostic notation: CBOR diagnostic notation:
[ [
{ {
1755 : "NRC TIC server", # name (SID 1755) 1755 : "NRC TIC server", / name (SID 1755) /
1757 : { # udp (SID 1757) 1757 : { / udp (SID 1757) /
+1 : "tic.nrc.ca", # address (SID 1758) +1 : "tic.nrc.ca", / address (SID 1758) /
+2 : 123 # port (SID 1759) +2 : 123 / port (SID 1759) /
}, },
1753 : 0, # association-type (SID 1753) 1753 : 0, / association-type (SID 1753) /
1754 : false, # iburst (SID 1754) 1754 : false, / iburst (SID 1754) /
1756 : true # prefer (SID 1756) 1756 : true / prefer (SID 1756) /
}, },
{ {
1755 : "NRC TAC server", # name (SID 1755) 1755 : "NRC TAC server", / name (SID 1755) /
1757 : { # udp (SID 1757) 1757 : { / udp (SID 1757) /
+1 : "tac.nrc.ca" # address (SID 1758) +1 : "tac.nrc.ca" / address (SID 1758) /
} }
} }
] ]
CBOR encoding: CBOR encoding:
82 # array(2) 82 # array(2)
a5 # map(5) a5 # map(5)
19 06db # unsigned(1755) 19 06db # unsigned(1755)
6e # text(14) 6e # text(14)
skipping to change at page 13, line 7 skipping to change at page 13, line 7
6e # text(14) 6e # text(14)
4e52432054414320736572766572 # "NRC TAC server" 4e52432054414320736572766572 # "NRC TAC server"
19 06dd # unsigned(1757) 19 06dd # unsigned(1757)
a1 # map(1) a1 # map(1)
01 # unsigned(1) 01 # unsigned(1)
6a # text(10) 6a # text(10)
7461632e6e72632e6361 # "tac.nrc.ca" 7461632e6e72632e6361 # "tac.nrc.ca"
4.4.2. Member names as keys 4.4.2. Member names as keys
The following example shows the encoding of the 'server' list using The following example shows the encoding of a 'server' list instance
names. This example is described in Section 4.4.1. using names. This example is described in Section 4.4.1.
CBOR diagnostic notation: CBOR diagnostic notation:
[ [
{ {
"ietf-system:name" : "NRC TIC server", "ietf-system:name" : "NRC TIC server",
"ietf-system:udp" : { "ietf-system:udp" : {
"address" : "tic.nrc.ca", "address" : "tic.nrc.ca",
"port" : 123 "port" : 123
}, },
skipping to change at page 15, line 11 skipping to change at page 15, line 11
o Keys of any inner data nodes MUST be set to valid deltas or member o Keys of any inner data nodes MUST be set to valid deltas or member
names. names.
o The CBOR array MUST contain either unique scalar values (as a o The CBOR array MUST contain either unique scalar values (as a
leaf-list, see Section 4.3), or maps (as a list, see Section 4.4). leaf-list, see Section 4.3), or maps (as a list, see Section 4.4).
o Values MUST follow the encoding rules of one of the datatypes o Values MUST follow the encoding rules of one of the datatypes
listed in Section 5. listed in Section 5.
The following example shows a possible use of anydata. In this
example, an anydata is used to define a data node containing a
notification event, this data node can be part of a YANG list to
create an event logger.
Definition example:
anydata event;
This example also assumes the assistance of the following
notification.
module example-port {
...
notification example-port-fault { # SID 2600
leaf port-name { # SID 2601
type string;
}
leaf port-fault { # SID 2601
type string;
}
}
}
CBOR diagnostic notation:
{
2601 : "0/4/21", / port-name /
2602 : "Open pin 2" / port-fault /
}
CBOR encoding:
a2 # map(2)
19 0a29 # unsigned(2601)
66 # text(6)
302f342f3231 # "0/4/21"
19 0a2a # unsigned(2602)
6a # text(10)
4f70656e2070696e2032 # "Open pin 2"
4.6. The 'anyxml' Data Node 4.6. The 'anyxml' Data Node
An anyxml schema node is used to serialize an arbitrary CBOR content, An anyxml schema node is used to serialize an arbitrary CBOR content,
i.e., its value can be any CBOR binary object. i.e., its value can be any CBOR binary object. anyxml value may
contain CBOR data items tagged with one of the tag listed in
Section 7.1, these tags shall be supported.
The following example shows a valid CBOR encoded instance.
Definition example from [RFC7951]:
anyxml bar;
CBOR diagnostic notation: [true, null, true]
CBOR encoding: 83 f5 f6 f5
5. Representing YANG Data Types in CBOR 5. Representing YANG Data Types in CBOR
The CBOR encoding of an instance of a leaf or leaf-list data node
depends on the built-in type of that data node. The following sub-
section defined the CBOR encoding of each built-in type supported by
YANG as listed in [RFC7950] section 4.2.4. Each subsection shows an
example value assigned to a data node instance of the discussed
built-in type.
5.1. The unsigned integer Types 5.1. The unsigned integer Types
Leafs of type uint8, uint16, uint32 and uint64 MUST be encoded using Leafs of type uint8, uint16, uint32 and uint64 MUST be encoded using
a CBOR unsigned integer data item (major type 0). a CBOR unsigned integer data item (major type 0).
The following example shows the encoding of leaf 'mtu' set to 1280 The following example shows the encoding of a 'mtu' leaf instance set
bytes. to 1280 bytes.
Definition example from [RFC7277]: Definition example from [RFC7277]:
leaf mtu { leaf mtu {
type uint16 { type uint16 {
range "68..max"; range "68..max";
} }
} }
CBOR diagnostic notation: 1280 CBOR diagnostic notation: 1280
CBOR encoding: 19 0500 CBOR encoding: 19 0500
5.2. The integer Types 5.2. The integer Types
Leafs of type int8, int16, int32 and int64 MUST be encoded using Leafs of type int8, int16, int32 and int64 MUST be encoded using
either CBOR unsigned integer (major type 0) or CBOR signed integer either CBOR unsigned integer (major type 0) or CBOR negative integer
(major type 1), depending on the actual value. (major type 1), depending on the actual value.
The following example shows the encoding of leaf 'timezone-utc- The following example shows the encoding of a 'timezone-utc-offset'
offset' set to -300 minutes. leaf instance set to -300 minutes.
Definition example from [RFC7317]: Definition example from [RFC7317]:
leaf timezone-utc-offset { leaf timezone-utc-offset {
type int16 { type int16 {
range "-1500 .. 1500"; range "-1500 .. 1500";
} }
} }
CBOR diagnostic notation: -300 CBOR diagnostic notation: -300
CBOR encoding: 39 012b CBOR encoding: 39 012b
5.3. The 'decimal64' Type 5.3. The 'decimal64' Type
Leafs of type decimal64 MUST be encoded using a decimal fraction as Leafs of type decimal64 MUST be encoded using a decimal fraction as
defined in [RFC7049] section 2.4.3. defined in [RFC7049] section 2.4.3.
The following example shows the encoding of leaf 'my-decimal' set to The following example shows the encoding of a 'my-decimal' leaf
2.57. instance set to 2.57.
Definition example from [RFC7317]: Definition example from [RFC7317]:
leaf my-decimal { leaf my-decimal {
type decimal64 { type decimal64 {
fraction-digits 2; fraction-digits 2;
range "1 .. 3.14 | 10 | 20..max"; range "1 .. 3.14 | 10 | 20..max";
} }
} }
CBOR diagnostic notation: 4([-2, 257]) CBOR diagnostic notation: 4([-2, 257])
CBOR encoding: c4 82 21 19 0101 CBOR encoding: c4 82 21 19 0101
5.4. The 'string' Type 5.4. The 'string' Type
Leafs of type string MUST be encoded using a CBOR text string data Leafs of type string MUST be encoded using a CBOR text string data
item (major type 3). item (major type 3).
The following example shows the encoding of leaf 'name' set to The following example shows the encoding of a 'name' leaf instance
"eth0". set to "eth0".
Definition example from [RFC7223]: Definition example from [RFC7223]:
leaf name { leaf name {
type string; type string;
} }
CBOR diagnostic notation: "eth0" CBOR diagnostic notation: "eth0"
CBOR encoding: 64 65746830 CBOR encoding: 64 65746830
5.5. The 'boolean' Type 5.5. The 'boolean' Type
Leafs of type boolean MUST be encoded using a CBOR true (major type Leafs of type boolean MUST be encoded using a CBOR true (major type
7, additional information 21) or false data item (major type 7, 7, additional information 21) or false data item (major type 7,
additional information 20). additional information 20).
The following example shows the encoding of leaf 'enabled' set to The following example shows the encoding of an 'enabled' leaf
'true'. instance set to 'true'.
Definition example from [RFC7317]: Definition example from [RFC7317]:
leaf enabled { leaf enabled {
type boolean; type boolean;
} }
CBOR diagnostic notation: true CBOR diagnostic notation: true
CBOR encoding: f5 CBOR encoding: f5
5.6. The 'enumeration' Type 5.6. The 'enumeration' Type
Leafs of type enumeration MUST be encoded using a CBOR unsigned Leafs of type enumeration MUST be encoded using a CBOR unsigned
integer (major type 0) or CBOR signed integer (major type 1), integer (major type 0) or CBOR negative integer (major type 1),
depending on the actual value. Enumeration values are either depending on the actual value. Enumeration values are either
explicitly assigned using the YANG statement 'value' or automatically explicitly assigned using the YANG statement 'value' or automatically
assigned based on the algorithm defined in [RFC7950] section 9.6.4.2. assigned based on the algorithm defined in [RFC7950] section 9.6.4.2.
The following example shows the encoding of leaf 'oper-status' set to The following example shows the encoding of an 'oper-status' leaf
'testing'. instance set to 'testing'.
Definition example from [RFC7317]: Definition example from [RFC7317]:
leaf oper-status { leaf oper-status {
type enumeration { type enumeration {
enum up { value 1; } enum up { value 1; }
enum down { value 2; } enum down { value 2; }
enum testing { value 3; } enum testing { value 3; }
enum unknown { value 4; } enum unknown { value 4; }
enum dormant { value 5; } enum dormant { value 5; }
skipping to change at page 18, line 17 skipping to change at page 19, line 33
Leafs of type bits MUST be encoded using a CBOR byte string data item Leafs of type bits MUST be encoded using a CBOR byte string data item
(major type 2). Bits position are either explicitly assigned using (major type 2). Bits position are either explicitly assigned using
the YANG statement 'position' or automatically assigned based on the the YANG statement 'position' or automatically assigned based on the
algorithm defined in [RFC7950] section 9.7.4.2. algorithm defined in [RFC7950] section 9.7.4.2.
Bits position 0 to 7 are assigned to the first byte within the byte Bits position 0 to 7 are assigned to the first byte within the byte
string, bits 8 to 15 to the second byte, and subsequent bytes are string, bits 8 to 15 to the second byte, and subsequent bytes are
assigned similarly. Within each byte, bits are assigned from least assigned similarly. Within each byte, bits are assigned from least
to most significant. to most significant.
The following example shows the encoding of leaf 'mybits' with the The following example shows the encoding of a 'mybits' leaf instance
'disable-nagle' and '10-Mb-only' flags set. with the 'disable-nagle' and '10-Mb-only' flags set.
Definition example from [RFC7950]: Definition example from [RFC7950]:
leaf mybits { leaf mybits {
type bits { type bits {
bit disable-nagle { bit disable-nagle {
position 0; position 0;
} }
bit auto-sense-speed { bit auto-sense-speed {
position 1; position 1;
skipping to change at page 18, line 37 skipping to change at page 20, line 4
bit auto-sense-speed { bit auto-sense-speed {
position 1; position 1;
} }
bit 10-Mb-only { bit 10-Mb-only {
position 2; position 2;
} }
} }
} }
CBOR diagnostic notation: h'05' CBOR diagnostic notation: h'05'
CBOR encoding: 41 05 CBOR encoding: 41 05
5.8. The 'binary' Type 5.8. The 'binary' Type
Leafs of type binary MUST be encoded using a CBOR byte string data Leafs of type binary MUST be encoded using a CBOR byte string data
item (major type 2). item (major type 2).
The following example shows the encoding of leaf 'aes128-key' set to The following example shows the encoding of an 'aes128-key' leaf
0x1f1ce6a3f42660d888d92a4d8030476e. instance set to 0x1f1ce6a3f42660d888d92a4d8030476e.
Definition example: Definition example:
leaf aes128-key { leaf aes128-key {
type binary { type binary {
length 16; length 16;
} }
} }
CBOR diagnostic notation: h'1f1ce6a3f42660d888d92a4d8030476e' CBOR diagnostic notation: h'1f1ce6a3f42660d888d92a4d8030476e'
CBOR encoding: 50 1f1ce6a3f42660d888d92a4d8030476e CBOR encoding: 50 1f1ce6a3f42660d888d92a4d8030476e
5.9. The 'leafref' Type 5.9. The 'leafref' Type
Leafs of type leafref MUST be encoded using the rules of the schema Leafs of type leafref MUST be encoded using the rules of the schema
node referenced by the 'path' YANG statement. node referenced by the 'path' YANG statement.
The following example shows the encoding of leaf 'interface-state- The following example shows the encoding of an 'interface-state-ref'
ref' set to the value "eth1". leaf instance set to "eth1".
Definition example from [RFC7223]: Definition example from [RFC7223]:
typedef interface-state-ref { typedef interface-state-ref {
type leafref { type leafref {
path "/interfaces-state/interface/name"; path "/interfaces-state/interface/name";
} }
} }
container interfaces-state { container interfaces-state {
skipping to change at page 19, line 50 skipping to change at page 21, line 30
} }
} }
CBOR diagnostic notation: "eth1" CBOR diagnostic notation: "eth1"
CBOR encoding: 64 65746831 CBOR encoding: 64 65746831
5.10. The 'identityref' Type 5.10. The 'identityref' Type
This specification supports two approaches for encoding identityref, This specification supports two approaches for encoding identityref,
a SID as defined in [I-D.ietf-core-sid] or a name as defined in a YANG Schema Item iDentifier (SID) as defined in Section 2.1 or a
[RFC7951] section 6.8. name as defined in [RFC7951] section 6.8.
5.10.1. SIDs as identityref 5.10.1. SIDs as identityref
SIDs are globally unique and may be used as identityref. This When schema nodes of type identityref are implemented using SIDs,
approach is both compact and simple to implement. When SIDs are they MUST be encoded using a CBOR unsigned integer data item (major
used, identityref MUST be encoded using a CBOR unsigned integer data type 0). (Note that no delta mechanism is employed for SIDs as
item (major type 0) and set to a SID allocated from a registered SID identityref.)
range.
The following example shows the encoding of leaf 'type' set to the The following example shows the encoding of a 'type' leaf instance
value 'iana-if-type:ethernetCsmacd' (SID 1180). set to the value 'iana-if-type:ethernetCsmacd' (SID 1180).
Definition example from [RFC7317]: Definition example from [RFC7317]:
identity interface-type { identity interface-type {
} }
identity iana-interface-type { identity iana-interface-type {
base interface-type; base interface-type;
} }
skipping to change at page 21, line 15 skipping to change at page 22, line 50
CBOR diagnostic notation: "iana-if-type:ethernetCsmacd" CBOR diagnostic notation: "iana-if-type:ethernetCsmacd"
CBOR encoding: 78 1b CBOR encoding: 78 1b
69616e612d69662d747970653a65746865726e657443736d616364 69616e612d69662d747970653a65746865726e657443736d616364
5.11. The 'empty' Type 5.11. The 'empty' Type
Leafs of type empty MUST be encoded using the CBOR null value (major Leafs of type empty MUST be encoded using the CBOR null value (major
type 7, additional information 22). type 7, additional information 22).
The following example shows the encoding of leaf 'is-router' when The following example shows the encoding of a 'is-router' leaf
present. instance when present.
Definition example from [RFC7277]: Definition example from [RFC7277]:
leaf is-router { leaf is-router {
type empty; type empty;
} }
CBOR diagnostic notation: null CBOR diagnostic notation: null
CBOR encoding: f6 CBOR encoding: f6
skipping to change at page 21, line 45 skipping to change at page 23, line 32
o bits o bits
o enumeration o enumeration
o identityref o identityref
o instance-identifier o instance-identifier
See Section 7.1 for more information about these CBOR tags. See Section 7.1 for more information about these CBOR tags.
The following example shows the encoding of leaf 'ip-address' when The following example shows the encoding of an 'ip-address' leaf
set to "2001:db8:a0b:12f0::1". instance when set to "2001:db8:a0b:12f0::1".
Definition example from [RFC7317]: Definition example from [RFC7317]:
typedef ipv4-address { typedef ipv4-address {
type string { type string {
pattern '(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3} pattern '(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}
([0-9][1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(%[\p{N} ([0-9][1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(%[\p{N}
\p{L}]+)?'; \p{L}]+)?';
} }
} }
skipping to change at page 22, line 42 skipping to change at page 24, line 42
type inet:ip-address; type inet:ip-address;
} }
CBOR diagnostic notation: "2001:db8:a0b:12f0::1" CBOR diagnostic notation: "2001:db8:a0b:12f0::1"
CBOR encoding: 74 323030313a6462383a6130623a313266303a3a31 CBOR encoding: 74 323030313a6462383a6130623a313266303a3a31
5.13. The 'instance-identifier' Type 5.13. The 'instance-identifier' Type
This specification supports two approaches for encoding an instance- This specification supports two approaches for encoding an instance-
identifier, one based on SIDs as defined in [I-D.ietf-core-sid] and identifier, one based on YANG Schema Item iDentifier (SID) as defined
one based on names as defined in [RFC7951] section 6.11. in Section 2.1 and one based on names as defined in [RFC7951] section
6.11.
5.13.1. SIDs as instance-identifier 5.13.1. SIDs as instance-identifier
SIDs uniquely identify a data node. In the case of a single instance SIDs uniquely identify a data node. In the case of a single instance
data node, a data node defined at the root of a YANG module or data node, a data node defined at the root of a YANG module or
submodule or data nodes defined within a container, the SID is submodule or data nodes defined within a container, the SID is
sufficient to identify this instance. sufficient to identify this instance.
In the case of a data node member of a YANG list, a SID is combined In the case of a data node member of a YANG list, a SID is combined
with the list key(s) to identify each instance within the YANG with the list key(s) to identify each instance within the YANG
skipping to change at page 23, line 27 skipping to change at page 25, line 27
item (major type 0) and set to the targeted data node SID. item (major type 0) and set to the targeted data node SID.
o The following entries MUST contain the value of each key required o The following entries MUST contain the value of each key required
to identify the instance of the targeted data node. These keys to identify the instance of the targeted data node. These keys
MUST be ordered as defined in the 'key' YANG statement, starting MUST be ordered as defined in the 'key' YANG statement, starting
from top level list, and follow by each of the subordinate from top level list, and follow by each of the subordinate
list(s). list(s).
*First example:* *First example:*
The following example shows the encoding of a leaf of type instance- The following example shows the encoding of a leaf instance of type
identifier which identify the data node "/system/contact" (SID 1737). instance-identifier which identifies the data node "/system/contact"
(SID 1737).
Definition example from [RFC7317]: Definition example from [RFC7317]:
container system { container system {
leaf contact { leaf contact {
type string; type string;
} }
leaf hostname { leaf hostname {
type inet:domain-name; type inet:domain-name;
} }
} }
CBOR diagnostic notation: 1737 CBOR diagnostic notation: 1737
CBOR encoding: 19 06c9 CBOR encoding: 19 06c9
*Second example:* *Second example:*
The following example shows the encoding of a leaf of type instance- The following example shows the encoding of a leaf instance of type
identifier which identify the data node instance instance-identifier which identify the data node instance
"/system/authentication/user/authorized-key/key-data" (SID 1730) for "/system/authentication/user/authorized-key/key-data" (SID 1730) for
user name "bob" and authorized-key "admin". user name "bob" and authorized-key "admin".
Definition example from [RFC7317]: Definition example from [RFC7317]:
list user { list user {
key name; key name;
leaf name { leaf name {
type string; type string;
skipping to change at page 24, line 44 skipping to change at page 26, line 46
83 # array(3) 83 # array(3)
19 06c2 # unsigned(1730) 19 06c2 # unsigned(1730)
63 # text(3) 63 # text(3)
626f62 # "bob" 626f62 # "bob"
65 # text(5) 65 # text(5)
61646d696e # "admin" 61646d696e # "admin"
*Third example:* *Third example:*
The following example shows the encoding of a leaf of type instance- The following example shows the encoding of a leaf instance of type
identifier which identify the list instance "/system/authentication/ instance-identifier which identify the list instance
user" (SID 1726) corresponding to the user name "jack". "/system/authentication/user" (SID 1726) corresponding to the user
name "jack".
CBOR diagnostic notation: [1726, "jack"] CBOR diagnostic notation: [1726, "jack"]
CBOR encoding: CBOR encoding:
82 # array(2) 82 # array(2)
19 06be # unsigned(1726) 19 06be # unsigned(1726)
64 # text(4) 64 # text(4)
6a61636b # "jack" 6a61636b # "jack"
5.13.2. Names as instance-identifier 5.13.2. Names as instance-identifier
The use of names as instance-identifier is defined in [RFC7951] The use of names as instance-identifier is defined in [RFC7951]
skipping to change at page 26, line 47 skipping to change at page 28, line 47
| | | datatype | | | | | datatype | |
+-----+---------------------+---------------------------+-----------+ +-----+---------------------+---------------------------+-----------+
// RFC Ed.: update Tag values using allocated tags if needed and // RFC Ed.: update Tag values using allocated tags if needed and
remove this note // RFC Ed.: replace XXXX with RFC number and remove remove this note // RFC Ed.: replace XXXX with RFC number and remove
this note this note
8. Acknowledgments 8. Acknowledgments
This document has been largely inspired by the extensive works done This document has been largely inspired by the extensive works done
by Andy Bierman and Peter van der Stok on [I-D.vanderstok-core-comi]. by Andy Bierman and Peter van der Stok on [I-D.ietf-core-comi].
[RFC7951] has also been a critical input to this work. The authors [RFC7951] has also been a critical input to this work. The authors
would like to thank the authors and contributors to these two drafts. would like to thank the authors and contributors to these two drafts.
The authors would also like to acknowledge the review, feedback, and The authors would also like to acknowledge the review, feedback, and
comments from Ladislav Lhotka and Juergen Schoenwaelder. comments from Ladislav Lhotka and Juergen Schoenwaelder.
9. References 9. References
9.1. Normative References 9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997, DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>. <http://www.rfc-editor.org/info/rfc2119>.
[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,
<http://www.rfc-editor.org/info/rfc6241>.
[RFC7049] Bormann, C. and P. Hoffman, "Concise Binary Object [RFC7049] Bormann, C. and P. Hoffman, "Concise Binary Object
Representation (CBOR)", RFC 7049, DOI 10.17487/RFC7049, Representation (CBOR)", RFC 7049, DOI 10.17487/RFC7049,
October 2013, <http://www.rfc-editor.org/info/rfc7049>. October 2013, <http://www.rfc-editor.org/info/rfc7049>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016, RFC 7950, DOI 10.17487/RFC7950, August 2016,
<http://www.rfc-editor.org/info/rfc7950>. <http://www.rfc-editor.org/info/rfc7950>.
9.2. Informative References 9.2. Informative References
[I-D.ietf-core-comi]
Stok, P., Bierman, A., Veillette, M., and A. Pelov, "CoAP
Management Interface", draft-ietf-core-comi-00 (work in
progress), January 2017.
[I-D.ietf-core-sid] [I-D.ietf-core-sid]
Somaraju, A., Veillette, M., Pelov, A., Turner, R., and A. Somaraju, A., Veillette, M., Pelov, A., Turner, R., and A.
Minaburo, "YANG Schema Item iDentifier (SID)", draft-ietf- Minaburo, "YANG Schema Item iDentifier (SID)", draft-ietf-
core-sid-00 (work in progress), October 2016. core-sid-00 (work in progress), October 2016.
[I-D.vanderstok-core-comi]
Stok, P., Bierman, A., Veillette, M., and A. Pelov, "CoAP
Management Interface", draft-vanderstok-core-comi-10 (work
in progress), October 2016.
[RFC7159] Bray, T., Ed., "The JavaScript Object Notation (JSON) Data [RFC7159] Bray, T., Ed., "The JavaScript Object Notation (JSON) Data
Interchange Format", RFC 7159, DOI 10.17487/RFC7159, March Interchange Format", RFC 7159, DOI 10.17487/RFC7159, March
2014, <http://www.rfc-editor.org/info/rfc7159>. 2014, <http://www.rfc-editor.org/info/rfc7159>.
[RFC7223] Bjorklund, M., "A YANG Data Model for Interface [RFC7223] Bjorklund, M., "A YANG Data Model for Interface
Management", RFC 7223, DOI 10.17487/RFC7223, May 2014, Management", RFC 7223, DOI 10.17487/RFC7223, May 2014,
<http://www.rfc-editor.org/info/rfc7223>. <http://www.rfc-editor.org/info/rfc7223>.
[RFC7228] Bormann, C., Ersue, M., and A. Keranen, "Terminology for [RFC7228] Bormann, C., Ersue, M., and A. Keranen, "Terminology for
Constrained-Node Networks", RFC 7228, Constrained-Node Networks", RFC 7228,
skipping to change at page 28, line 13 skipping to change at page 30, line 17
<http://www.rfc-editor.org/info/rfc7277>. <http://www.rfc-editor.org/info/rfc7277>.
[RFC7317] Bierman, A. and M. Bjorklund, "A YANG Data Model for [RFC7317] Bierman, A. and M. Bjorklund, "A YANG Data Model for
System Management", RFC 7317, DOI 10.17487/RFC7317, August System Management", RFC 7317, DOI 10.17487/RFC7317, August
2014, <http://www.rfc-editor.org/info/rfc7317>. 2014, <http://www.rfc-editor.org/info/rfc7317>.
[RFC7951] Lhotka, L., "JSON Encoding of Data Modeled with YANG", [RFC7951] Lhotka, L., "JSON Encoding of Data Modeled with YANG",
RFC 7951, DOI 10.17487/RFC7951, August 2016, RFC 7951, DOI 10.17487/RFC7951, August 2016,
<http://www.rfc-editor.org/info/rfc7951>. <http://www.rfc-editor.org/info/rfc7951>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<http://www.rfc-editor.org/info/rfc8040>.
Authors' Addresses Authors' Addresses
Michel Veillette (editor) Michel Veillette (editor)
Trilliant Networks Inc. Trilliant Networks Inc.
610 Rue du Luxembourg 610 Rue du Luxembourg
Granby, Quebec J2J 2V2 Granby, Quebec J2J 2V2
Canada Canada
Phone: +14503750556 Phone: +14503750556
Email: michel.veillette@trilliantinc.com Email: michel.veillette@trilliantinc.com
 End of changes. 66 change blocks. 
177 lines changed or deleted 273 lines changed or added

This html diff was produced by rfcdiff 1.45. The latest version is available from http://tools.ietf.org/tools/rfcdiff/