Internet DRAFT - draft-chen-bier-rpcs-yang
draft-chen-bier-rpcs-yang
BIER WG Ran. Chen
Internet-Draft Min. Gu
Intended status: Standards Track ZTE Corporation
Expires: March 1, 2019 August 28, 2018
YANG Data Model for BIER RPCs
draft-chen-bier-rpcs-yang-01.txt
Abstract
This document defines a YANG data model for BIER RPCs.
Status of This Memo
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This Internet-Draft will expire on March 1, 2019.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Design of the Data Model . . . . . . . . . . . . . . . . . . 2
3. Overview the bier rpcs model . . . . . . . . . . . . . . . . 8
4. BIER YANG Data Model . . . . . . . . . . . . . . . . . . . . 9
5. Security Considerations . . . . . . . . . . . . . . . . . . . 18
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 18
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
8. Normative references . . . . . . . . . . . . . . . . . . . . 18
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 19
1. Introduction
This document defines a YANG data model for BIER RPCs.
2. Design of the Data Model
module: ietf-bier-rpcs
augment /coam-methods:continuity-check/coam-methods:input/coam-methods:destination-tp:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
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| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
+---- reply-mode-te? reply-mode
augment /coam-methods:continuity-check/coam-methods:output/coam-methods:src-test-point:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
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+---- reply-mode-te? reply-mode
augment /coam-methods:continuity-check/coam-methods:output/coam-methods:dest-test-point:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
+---- reply-mode-te? reply-mode
augment /coam-methods:path-discovery/coam-methods:input/coam-methods:destination-tp:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
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| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
+---- reply-mode-te? reply-mode
augment /coam-methods:path-discovery/coam-methods:output/coam-methods:src-test-point:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
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| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
+---- reply-mode-te? reply-mode
augment /coam-methods:path-discovery/coam-methods:output/coam-methods:dest-test-point:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
+---- bier-te-subdomainid? bier:sub-domain-id
+---- bier-te-bp-info* [bier-te-bsl]
| +---- bier-te-bsl bier:bsl
| +---- bitstring* [si]
| | +---- si bier:si
| | +---- bitpositions* [bitposition]
| | +---- bitposition bier-te:bit-string
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| +---- fec-stack-type* [si]
| +---- si bier:si
| +---- fec-stack-info* [bitposition]
| +---- bitposition bier-te:bit-string
| +---- (fec-stack-type)
| +--:(connected)
| | +---- local-bfr? inet:ip-address
| | +---- local-interface? if:interface-ref
| +--:(routed)
| | +---- routed-bfr? inet:ip-address
| +--:(local-decap)
| +---- bfer? inet:ip-address
+---- reply-mode-te? reply-mode
augment /coam-methods:path-discovery/coam-methods:output/coam-methods:path-trace-info/coam-methods:path-trace-info-list:
+---- bier-address
| +---- (bier-address)?
| | +--:(bfrs)
| | | +---- bier-bsl? bier:bsl
| | | +---- bier-subdomainid? bier:sub-domain-id
| | | +---- bfir? bier:bfr-id
| | | +---- bier-bfers* [bier-bfrid]
| | | +---- bier-bfrid bier:bfr-id
| | +--:(m-addr)
| | +---- vpn-id? uint32
| | +---- source-address? inet:ip-address
| | +---- source-wildcard? uint8
| | +---- group-address? inet:ip-address
| | +---- group-wildcard? uint8
| +---- target-bfers* [bier-bfrid]
| | +---- bier-bfrid bier:bfr-id
| +---- reply-mode? reply-mode
+---- bier-te-address
| +---- bier-te-subdomainid? bier:sub-domain-id
| +---- bier-te-bp-info* [bier-te-bsl]
| | +---- bier-te-bsl bier:bsl
| | +---- bitstring* [si]
| | | +---- si bier:si
| | | +---- bitpositions* [bitposition]
| | | +---- bitposition bier-te:bit-string
| | +---- fec-stack-type* [si]
| | +---- si bier:si
| | +---- fec-stack-info* [bitposition]
| | +---- bitposition bier-te:bit-string
| | +---- (fec-stack-type)
| | +--:(connected)
| | | +---- local-bfr? inet:ip-address
| | | +---- local-interface? if:interface-ref
| | +--:(routed)
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| | | +---- routed-bfr? inet:ip-address
| | +--:(local-decap)
| | +---- bfer? inet:ip-address
| +---- reply-mode-te? reply-mode
+---- bier-response
+---- ttl? int16
+---- responder-bfr? inet:ip-address
3. Overview the bier rpcs model
There are seven parts of the bier rpcs data model.
o This Module augments the "coam-methods:continuity-check/coam-
methods:input/coam-methods:destination-tp:" with a bier-address
container and bier-te address container. The Containers define
all the input parameters related to 'continuity-check' operation.
o This Module augments the "coam-methods:continuity-check/coam-
methods:output/coam-methods:src-test-point: " with a bier-address
container and bier-te address container. The Containers define
all the output src-test-point parameters related to 'continuity-
check' operation.
o This Module augments the "coam-methods:continuity-check/coam-
methods:output/coam-methods:dest-test-point: " with a bier-address
container and bier-te address container. The Containers define
all the output dest-test-point parameters related to 'continuity-
check' operation.
o This Module augments the " coam-methods:path-discovery/coam-
methods:input/coam-methods:destination-tp: " with a bier-address
container and bier-te address container. The Containers define
all the input parameters related to 'path-discovery' operation.
o This Module augments the "coam-methods:path-discovery/coam-
methods:output/coam-methods:src-test-point: " with a bier-address
container and bier-te address container. The Containers define
all the output src-test-point parameters related to 'path-
discovery' operation.
o This Module augments the "coam-methods:path-discovery/coam-
methods:output/coam-methods:dest-test-point: " with a bier-address
container and bier-te address container. The Containers define
all the output dest-test-point parameters related to 'path-
discovery' operation.
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o This Module augments the "coam-methods:path-discovery/coam-
methods:output/coam-methods:path-trace-info/coam-methods:path-
trace-info-list" with a bier-address container,bier-te address
container and bier-response container. The Containers define all
the output path trace infomation list related to 'path-discovery'
operation.
4. BIER YANG Data Model
<CODE BEGINS> file "ietf-bier-rpcs@2018-02-08.yang"
module ietf-bier-rpcs {
namespace "urn:ietf:params:xml:ns:yang:ietf-bier-rpcs";
prefix bier-rpcs;
import ietf-bier {
prefix bier;
}
import ietf-bier-te{
prefix bier-te;
}
import ietf-connectionless-oam-methods {
prefix coam-methods;
}
import ietf-inet-types {
prefix "inet";
}
import ietf-interfaces {
prefix if;
}
import ietf-multicast-information {
prefix multicast-info;
}
organization
"IETF BIER(Bit Indexed Explicit Replication ) Working Group";
contact
"WG List: <mailto:bier@ietf.org>
WG Chair: Tony Przygienda
<mailto:tonysietf@gmail.com>
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WG Chair: Greg Shepherd
<mailto:gjshep@gmail.com>
Editor: Ran Chen
<mailto:chen.ran@zte.com.cn>
Editor: Min Gu
<mailto:gu.min@zte.com.cn>
";
description
"The YANG module defines BIER RPCs data model.";
revision 2018-08-28{
description
"01 revision";
reference "RFC XXXX: YANG module defines BIER RPCs data model.";
}
revision 2018-02-08{
description
"00 revision";
reference "RFC XXXX: YANG module defines BIER RPCs data model.";
}
typedef reply-mode {
type enumeration{
enum "do not Reply"{
value 1;
description
"reply mode is do not reply";
}
enum "reply via IPv4/IPv6 UDP packet"{
value 2;
description
"reply mode is via IPv4/IPv6 UDP packet.";
}
enum "reply via BIER-TE packet"{
value 3;
description
"reply mode is via BIER-TE packet.";
}
}
description "Reply mode.";
}
grouping general-multicast {
description "The general multicast address information.";
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leaf source-address {
type inet:ip-address;
description "The address of multicast source. The value set to zero
means that the receiver interests in all source that relevant to
one group.";
}
leaf source-wildcard {
type uint8;
description "The wildcard information of source.";
}
leaf group-address {
type inet:ip-address;
description "The address of multicast group.";
}
leaf group-wildcard {
type uint8;
description "The wildcard information of group.";
}
}
grouping m-addr {
description "The vpn multicast information.";
leaf vpn-id {
type uint32;
description "The vpn-id of the multicast flow.
If there is global instance, the vpnid value should be zero.";
}
uses general-multicast;
}
grouping bier-address{
description
"bier test point address.";
choice bier-address {
case bfrs {
description "use bfrs as address.";
leaf bier-bsl{
type bier:bsl;
description
"bier bitstringlength.";
}
leaf bier-subdomainid {
type bier:sub-domain-id;
description
"bier sub-domain id.";
}
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leaf bfir {
type bier:bfr-id;
description
"bier bfir id.";
}
list bier-bfers {
key bier-bfrid;
leaf bier-bfrid {
type bier:bfr-id;
description
"bier bfr identifier.";
}
description
"bier BFERs.";
}
}
case m-addr {
description "use multicast flow address as address.";
uses multicast-info:m-addr;
}
description "BIER address." ;
}
list target-bfers {
key bier-bfrid;
leaf bier-bfrid {
type bier:bfr-id;
description
"bier bfr identifier.";
}
description
"target BFERs.";
}
leaf reply-mode{
type reply-mode;
description
"reply mode.";
}
}
grouping bier-te-address{
description
"bier-te test point address.";
leaf bier-te-subdomainid {
type bier:sub-domain-id;
description
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"bier-te sub-domain id.";
}
list bier-te-bp-info {
key "bier-te-bsl";
description
"bier-te bitpositions information.";
leaf bier-te-bsl{
type bier:bsl;
description
"bier bitstringlength.";
}
list bitstring{
key "si";
description
"The bitstring of BIER-TE path.";
leaf si {
type bier:si;
description
"The set identifier of this forwarding item.";
}
list bitpositions {
key "bitposition";
description
"the list of bitposition information.";
leaf bitposition{
type bier-te:bit-string;
description
"the bitposition information.";
}
}
}
list fec-stack-type{
key "si";
description
"The FEC stack info.";
leaf si {
type bier:si;
description
"The set identifier of this forwarding item.";
}
list fec-stack-info {
key "bitposition";
description
"the choice of fec stack type.";
leaf bitposition{
type bier-te:bit-string;
description
"the bitposition information.";
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}
choice fec-stack-type{
mandatory true;
case connected {
description "The type of adjacency is connected. Mostly connected interfaces.";
leaf local-bfr{
type inet:ip-address;
description
"the local bfr identifier.";
}
leaf local-interface{
type if:interface-ref;
description
"the local interface.";
}
}
case routed {
description "The type of adjacency is routed. Mostly not connected interfaces.";
leaf routed-bfr{
type inet:ip-address;
description
"the loopback address of bfr.";
}
}
case local-decap {
description "Means that the packet should be decapsulated and forward out BIER domain.";
leaf bfer{
type inet:ip-address;
description
"bfer indentifier.";
}
}
description "FEC stack type.";
}
}
}
}
leaf reply-mode-te{
type reply-mode;
description
"the reply mode.";
}
}
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identity tp-address-technology-type {
description
"Test point address type";
}
identity bier-address-type {
base tp-address-technology-type;
description
"bier address address type";
}
identity bier-te-address-type {
base tp-address-technology-type;
description
"bier te address address type";
}
augment /coam-methods:continuity-check/coam-methods:input/coam-methods:destination-tp{
description
"augment the connectionless oam methods yang for input CC destination test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
}
augment /coam-methods:continuity-check/coam-methods:output/coam-methods:src-test-point{
description
"augment the connectionless oam methods yang for output CC source test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
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description
"bier te Address.";
}
}
augment /coam-methods:continuity-check/coam-methods:output/coam-methods:dest-test-point{
description
"augment the connectionless oam methods yang for output CC destination test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
}
augment /coam-methods:path-discovery/coam-methods:input/coam-methods:destination-tp {
description
"augment the connectionless oam methods yang for input path-discovery destination test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
}
augment /coam-methods:path-discovery/coam-methods:output/coam-methods:src-test-point{
description
"augment the connectionless oam methods yang for output path-discovery src test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
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}
}
augment "/coam-methods:path-discovery/coam-methods:output/coam-methods:dest-test-point"{
description
"augment the connectionless oam methods yang for output path-discovery destination test point address";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
}
augment /coam-methods:path-discovery/coam-methods:output/coam-methods:path-trace-info/coam-methods:path-trace-info-list{
description
"augment the connectionless oam methods yang for output path trace info.";
container bier-address {
uses bier-address;
description
"bier Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
container bier-te-address {
uses bier-te-address;
description
"bier te Address.";
}
container bier-response{
leaf ttl{
type int16;
description
"TTL is ";
}
leaf responder-bfr{
type inet:ip-address;
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description
"Responder bfr.";
}
description
"Bier response.";
}
}
}
<CODE ENDS>
5. Security Considerations
TBD.
6. Acknowledgements
We would like to thank IJsbrand Wijnands, Reshad Rahman and Giles
Heron for their comments and support of this work.
7. IANA Considerations
This document requires no IANA Actions. Please remove this section
before RFC publication.
8. Normative references
[I-D.ietf-bier-architecture]
Wijnands, I., Rosen, E., Dolganow, A., Przygienda, T., and
S. Aldrin, "Multicast using Bit Index Explicit
Replication", draft-ietf-bier-architecture-08 (work in
progress), September 2017.
[I-D.ietf-bier-bier-yang]
Chen, R., hu, f., Zhang, Z., dai.xianxian@zte.com.cn, d.,
and M. Sivakumar, "YANG Data Model for BIER Protocol",
draft-ietf-bier-bier-yang-03 (work in progress), February
2018.
[I-D.ietf-bier-te-arch]
Eckert, T., Cauchie, G., Braun, W., and M. Menth, "Traffic
Engineering for Bit Index Explicit Replication (BIER-TE)",
draft-ietf-bier-te-arch-00 (work in progress), January
2018.
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Internet-Draft BIER RPCs YANG August 2018
[I-D.ietf-lime-yang-connectionless-oam-methods]
Kumar, D., Wang, Z., Wu, Q., Rahman, R., and S. Raghavan,
"Retrieval Methods YANG Data Model for the Management of
Operations, Administration, and Maintenance (OAM)
Protocols that use Connectionless Communications", draft-
ietf-lime-yang-connectionless-oam-methods-13 (work in
progress), November 2017.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[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,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types",
RFC 6991, DOI 10.17487/RFC6991, July 2013,
<https://www.rfc-editor.org/info/rfc6991>.
[RFC7223] Bjorklund, M., "A YANG Data Model for Interface
Management", RFC 7223, DOI 10.17487/RFC7223, May 2014,
<https://www.rfc-editor.org/info/rfc7223>.
Authors' Addresses
Ran Chen
ZTE Corporation
No.50 Software Avenue,Yuhuatai District
Nanjing, Jiangsu Province 210012
China
Phone: +86 025 88014636
Email: chen.ran@zte.com.cn
Min Gu
ZTE Corporation
No.50 Software Avenue,Yuhuatai District
Nanjing, Jiangsu Province 210012
China
Chen & Gu Expires March 1, 2019 [Page 19]
