OTN Tunnel YANG Model
draft-sharma-ccamp-otn-tunnel-model-00
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| Authors | ansharma@infinera.com , Rajan Rao , Xian Zhang | ||
| Last updated | 2016-10-27 | ||
| Replaced by | draft-ietf-ccamp-otn-tunnel-model, draft-ietf-ccamp-otn-tunnel-model | ||
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draft-sharma-ccamp-otn-tunnel-model-00
CCAMP Working Group A. Sharma
Internet-Draft R. Rao
Intended status: Standards Track Infinera Corp
Expires: April 30, 2017 X. Zhang
Huawei Technologies
October 27, 2016
OTN Tunnel YANG Model
draft-sharma-ccamp-otn-tunnel-model-00
Abstract
This document describes the YANG data model for OTN Tunnels.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 30, 2017.
Copyright Notice
Copyright (c) 2016 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
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Model Overview . . . . . . . . . . . . . . . . . . . . . . . 2
2.1. Mux Service in Multi-Domain OTN Network . . . . . . . . . 2
2.2. Bookended and Non-BookEnded OTN Tunnel . . . . . . . . . 3
2.3. Network and Client side tunnel services . . . . . . . . . 4
2.4. Model Tree . . . . . . . . . . . . . . . . . . . . . . . 4
2.5. OTN Service YANG Model . . . . . . . . . . . . . . . . . 5
2.6. Transport Types YANG Model . . . . . . . . . . . . . . . 10
3. Security Considerations . . . . . . . . . . . . . . . . . . . 18
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 18
6. Normative References . . . . . . . . . . . . . . . . . . . . 18
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 19
1. Introduction
OTN transport networks can carry various types of client services.
In many cases, the client signal is carried over an OTN tunnel across
connected domains in a multi-domain network. These OTN services can
either be transported or switched in the OTN network. If an OTN
tunnel is switched, then additional parameters need to be provided to
create a Mux OTN service.
This document provides YANG model for creating OTN tunnel. The model
augments the TE Tunnel model, which is an abstract model to create TE
Tunnels.
2. Model Overview
This section provides an overview of the OTN Service Model.
2.1. Mux Service in Multi-Domain OTN Network
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OTN Mux Service
<--------------------------------->
XXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXX
XX XXX XX XXX XX XX
XX +---+ X XX +---+ +---+ X XX +---+ XX
X |NE1+--------+-----+NE2+-----------+NE3+--------+-X---+NE4| X
X +---+ XX ^ X +---+ +---+ XX ^ XX +---+ X
XX XX | XX XX | XX XXX
XXXXXXXXXX | XXXXXXXXXXXXXXXXXXXXXXXX | XXXXXXXXXX
Domain-1 | Domain-2 | Domain-3
+ +
Same OTN Service attributes: Same OTN Service attributes:
1. Client Signal 1. Client Signal
2. Tributary Port Number 2. Tributary Port Number
3. Tributary Slot Granularity 3. Tributary Slot Granularity
4. Timeslots 4. Timeslots
Figure 1: OTN Mux Service in a multi-domain network topology
Figure 1 shows a multi-domain OTN network with three domains. In
this example, user wants to setup an end-to-end OTN service that
passes through Domain-2. In order to create an OTN mux service in
Domain-2, user will need to specify the exact details of the client
side LO-ODU on NE2 and NE3, so that these service endpoints can be
paired with the LO-ODU endpoints on NE1 and NE4, respectively.
Let's assume that ODU4 is the client side HO-ODU on NE2 and NE3, and
the client signal is ODU2. User will need to specify the OTN client
signal (ODU2 in this example), the Tributary Port Number (TPN),
Tributary Slot Granularities (TSG) and timeslots to be used. As
shown in the figure above, these service parameters must be the same
between NE1 and NE2, and NE3 and NE4.
Once the OTN Mux service is setup in Domain-2, the incoming signal
from either NE1 and/or NE4 will be switched inside Domain-2, and
delivered to NE at the other end.
2.2. Bookended and Non-BookEnded OTN Tunnel
OTN tunnel model provides support for both bookended and non-
bookended OTN tunnels.
For bookended tunnels, the same client signal is present on source
and destination endpoints. For example, ODU2e bookended tunnel will
have the same ODU2e client signal at both source and destination
endpoints.
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For non-bookended tunnels, different client signals are present on
source and destination endpoints. For example, the client signal can
be ODU2e on the source endpoint and the handoff at the destination
can be 10GbE-LAN client signal.
2.3. Network and Client side tunnel services
The OTN tunnel model provides support for both network to network and
client to client tunnels. For network to network tunnel, network
termination points on source and destination node represent source
and destination endpoints. For client to client tunnel, client
termination points on source and destination node represent source
and destination endpoints.
If a client to client tunnel needs to use one or more HO (or server)
network to network tunnels, ERO and routing constraints, defined in
the base TE model, can be used to route the client tunnel over one or
more server tunnels.
2.4. Model Tree
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augment /te:te/te:tunnels/te:tunnel/te:config:
+--rw payload-treatment? enumeration
+--rw src-client-signal? identityref
+--rw src-tpn? uint16
+--rw src-tsg? identityref
+--rw src-timeslot-count? uint16
+--rw src-tributary-slots
| +--rw values* uint8
+--rw dst-client-signal? identityref
+--rw dst-tpn? uint16
+--rw dst-tsg? identityref
+--rw dst-timeslot-count? uint16
+--rw dst-tributary-slots
+--rw values* uint8
augment /te:te/te:tunnels/te:tunnel/te:state:
+--ro payload-treatment? enumeration
+--ro src-client-signal? identityref
+--ro src-tpn? uint16
+--ro src-tsg? identityref
+--ro src-timeslot-count? uint16
+--ro src-tributary-slots
| +--ro values* uint8
+--ro dst-client-signal? identityref
+--ro dst-tpn? uint16
+--ro dst-tsg? identityref
+--ro dst-timeslot-count? uint16
+--ro dst-tributary-slots
+--ro values* uint8
2.5. OTN Service YANG Model
<CODE BEGINS> file "ietf-otn-tunnel@2016-10-25.yang"
module ietf-otn-tunnel {
namespace "urn:ietf:params:xml:ns:yang:ietf-otn-tunnel";
prefix "otn-tunnel";
import ietf-te { prefix "te"; }
import ietf-transport-types { prefix "tran-types"; }
//import yang-ext { prefix ext; revision-date 2013-07-09; }
organization
"IETF CCAMP Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/ccamp/>
WG List: <mailto:ccamp@ietf.org>
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Editor: Anurag Sharma
<mailto:AnSharma@infinera.com>
Editor: Rajan Rao
<mailto:rrao@infinera.com>
Editor: Xian Zhang
<mailto:zhang.xian@huawei.com>";
description
"This module defines a model for OTN Tunnel Services.";
revision "2016-10-25" {
description
"Revision 0.2";
reference "TBD";
}
grouping otn-tunnel-endpoint {
description "Parameters for OTN tunnel.";
leaf payload-treatment {
type enumeration {
enum switching;
enum transport;
}
default switching;
description
"Treatment of the incoming payload. Payload can
either be switched, or transported as is.";
}
leaf src-client-signal {
type identityref {
base tran-types:client-signal;
}
description
"Client signal at the source endpoint of
the tunnel.";
}
leaf src-tpn {
type uint16 {
range "0..4095";
}
description
"Tributary Port Number. Applicable in case of mux
services.";
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reference
"RFC7139: GMPLS Signaling Extensions for Control of
Evolving G.709 Optical Transport Networks.";
}
leaf src-tsg {
type identityref {
base tran-types:tributary-slot-granularity;
}
description
"Tributary slot granularity. Applicable in case of mux
services.";
reference
"G.709/Y.1331, February 2016: Interfaces for the
Optical Transport Network (OTN)";
}
leaf src-timeslot-count {
type uint16;
description
"Number of timeslots used at the source.";
}
container src-tributary-slots {
description
"A list of tributary timeslots used by the client
service. Applicable in case of mux services.";
leaf-list values {
type uint8;
description
"Tributary timeslot value.";
reference
"G.709/Y.1331, February 2016: Interfaces for the
Optical Transport Network (OTN)";
}
}
leaf dst-client-signal {
type identityref {
base tran-types:client-signal;
}
description
"Client signal at the destination endpoint of
the tunnel.";
}
leaf dst-tpn {
type uint16 {
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range "0..4095";
}
description
"Tributary Port Number. Applicable in case of mux
services.";
reference
"RFC7139: GMPLS Signaling Extensions for Control of
Evolving G.709 Optical Transport Networks.";
}
leaf dst-tsg {
type identityref {
base tran-types:tributary-slot-granularity;
}
description
"Tributary slot granularity. Applicable in case of mux
services.";
reference
"G.709/Y.1331, February 2016: Interfaces for the
Optical Transport Network (OTN)";
}
leaf dst-timeslot-count {
type uint16;
description
"Number of timeslots used at the destination.";
}
container dst-tributary-slots {
description
"A list of tributary timeslots used by the client
service. Applicable in case of mux services.";
leaf-list values {
type uint8;
description
"Tributary timeslot value.";
reference
"G.709/Y.1331, February 2016: Interfaces for the
Optical Transport Network (OTN)";
}
}
}
/*
Note: Comment has been given to authors of TE Tunnel model to add
tunnel-types to the model in order to identify the technology
type of the service.
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grouping otn-service-type {
description
"Identifies the OTN Service type.";
container otn-service {
presence "Indicates OTN Service.";
description
"Its presence identifies the OTN Service type.";
}
} // otn-service-type
augment "/te:te/te:tunnels/te:tunnel/te:tunnel-types" {
description
"Introduce OTN service type for tunnel.";
ext:augment-identifier otn-service-type-augment;
uses otn-service-type;
}
*/
/*
Note: Comment has been given to authors of TE Tunnel model to add
list of endpoints under config to support P2MP tunnel.
*/
augment "/te:te/te:tunnels/te:tunnel/te:config" {
description
"Augment with additional parameters required for OTN
service.";
//ext:augment-identifier otn-tunnel-endpoint-config-augment;
uses otn-tunnel-endpoint;
}
augment "/te:te/te:tunnels/te:tunnel/te:state" {
description
"Augment with additional parameters required for OTN
service.";
//ext:augment-identifier otn-tunnel-endpoint-state-augment;
uses otn-tunnel-endpoint;
}
/*
Note: Comment has been given to authors of TE Tunnel model to add
tunnel-lifecycle-event to the model. This notification is reported
for all lifecycle changes (create, delete, and update) to the
tunnel or lsp.
augment "/te:tunnel-lifecycle-event" {
description
"OTN service event";
uses otn-service-type;
uses otn-tunnel-params;
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list endpoint {
key
"endpoint-address tp-id";
description
"List of Tunnel Endpoints.";
uses te:tunnel-endpoint;
uses otn-tunnel-params;
}
}
*/
}
<CODE ENDS>
2.6. Transport Types YANG Model
<CODE BEGINS> file "ietf-transport-types@2016-10-25.yang"
module ietf-transport-types {
namespace "urn:ietf:params:xml:ns:yang:ietf-transport-types";
prefix "tran-types";
organization
"IETF CCAMP Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/ccamp/>
WG List: <mailto:ccamp@ietf.org>
Editor: Anurag Sharma
<mailto:AnSharma@infinera.com>
Editor: Rajan Rao
<mailto:rrao@infinera.com>
Editor: Xian Zhang
<mailto:zhang.xian@huawei.com>";
description
"This module defines transport types.";
revision "2016-10-25" {
description
"Revision 0.2";
reference "TBD";
}
identity tributary-slot-granularity {
description
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"Tributary slot granularity.";
reference
"G.709/Y.1331, February 2016: Interfaces for the
Optical Transport Network (OTN)";
}
identity tsg-1.25G {
base tributary-slot-granularity;
description
"1.25G tributary slot granularity.";
}
identity tsg-2.5G {
base tributary-slot-granularity;
description
"2.5G tributary slot granularity.";
}
identity tributary-protocol-type {
description
"Base identity for protocol framing used by
tributary signals.";
}
identity prot-OTU1 {
base tributary-protocol-type;
description
"OTU1 protocol (2.66G)";
}
/*
identity prot-OTU1e {
base tributary-protocol-type;
description
"OTU1e type (11.04G)";
}
identity prot-OTU1f {
base tributary-protocol-type;
description
"OTU1f type (11.27G)";
}
*/
identity prot-OTU2 {
base tributary-protocol-type;
description
"OTU2 type (10.70G)";
}
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identity prot-OTU2e {
base tributary-protocol-type;
description
"OTU2e type (11.09G)";
}
/*
identity prot-OTU2f {
base tributary-protocol-type;
description
"OTU2f type (11.31G)";
}
*/
identity prot-OTU3 {
base tributary-protocol-type;
description
"OTU3 type (43.01G)";
}
/*
identity prot-OTU3e1 {
base tributary-protocol-type;
description
"OTU3e1 type (44.57G)";
}
identity prot-OTU3e2 {
base tributary-protocol-type;
description
"OTU3e2 type (44.58G)";
}
*/
identity prot-OTU4 {
base tributary-protocol-type;
description
"OTU4 type (111.80G)";
}
identity prot-OTUCn {
base tributary-protocol-type;
description
"OTUCn type (beyond 100G)";
}
identity prot-ODU0 {
base tributary-protocol-type;
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description
"ODU0 protocol (1.24G).";
}
identity prot-ODU1 {
base tributary-protocol-type;
description
"ODU1 protocol (2.49G).";
}
/*
identity prot-ODU1e {
base tributary-protocol-type;
description
"ODU1e protocol (10.35G).";
}
identity prot-ODU1f {
base tributary-protocol-type;
description
"ODU1f protocol (10.56G).";
}
*/
identity prot-ODU2 {
base tributary-protocol-type;
description
"ODU2 protocol (10.03G).";
}
identity prot-ODU2e {
base tributary-protocol-type;
description
"ODU2e protocol (10.39G).";
}
/*
identity prot-ODU2f {
base tributary-protocol-type;
description
"ODU2f protocol (10.60G).";
}
*/
identity prot-ODU3 {
base tributary-protocol-type;
description
"ODU3 protocol (40.31G).";
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}
/*
identity prot-ODU3e1 {
base tributary-protocol-type;
description
"ODU3e1 protocol (41.77G).";
}
identity prot-ODU3e2 {
base tributary-protocol-type;
description
"ODU3e2 protocol (41.78G).";
}
*/
identity prot-ODU4 {
base tributary-protocol-type;
description
"ODU4 protocol (104.79G).";
}
identity prot-ODUFlex-cbr {
base tributary-protocol-type;
description
"ODU Flex CBR protocol for transporting constant bit
rate signal.";
}
identity prot-ODUFlex-gfp {
base tributary-protocol-type;
description
"ODU Flex GFP protocol for transporting stream of packets
using Generic Framing Procedure.";
}
identity prot-ODUCn {
base tributary-protocol-type;
description
"ODUCn protocol (beyond 100G).";
}
identity prot-1GbE {
base tributary-protocol-type;
description
"1G Ethernet protocol";
}
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identity prot-10GbE-LAN {
base tributary-protocol-type;
description
"10G Ethernet LAN protocol";
}
identity prot-40GbE {
base tributary-protocol-type;
description
"40G Ethernet protocol";
}
identity prot-100GbE {
base tributary-protocol-type;
description
"100G Ethernet protocol";
}
identity client-signal {
description
"Base identity from which specific client signals for the
tunnel are derived.";
}
identity client-signal-1GbE {
base client-signal;
description
"Client signal type of 1GbE";
}
identity client-signal-10GbE-LAN {
base client-signal;
description
"Client signal type of 10GbE LAN";
}
identity client-signal-10GbE-WAN {
base client-signal;
description
"Client signal type of 10GbE WAN";
}
identity client-signal-40GbE {
base client-signal;
description
"Client signal type of 40GbE";
}
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identity client-signal-100GbE {
base client-signal;
description
"Client signal type of 100GbE";
}
identity client-signal-OC3_STM1 {
base client-signal;
description
"Client signal type of OC3 & STM1";
}
identity client-signal-OC12_STM4 {
base client-signal;
description
"Client signal type of OC12 & STM4";
}
identity client-signal-OC48_STM16 {
base client-signal;
description
"Client signal type of OC48 & STM16";
}
identity client-signal-OC192_STM64 {
base client-signal;
description
"Client signal type of OC192 & STM64";
}
identity client-signal-OC768_STM256 {
base client-signal;
description
"Client signal type of OC768 & STM256";
}
identity client-signal-ODU0 {
base client-signal;
description
"Client signal type of ODU0 (1.24G)";
}
identity client-signal-ODU1 {
base client-signal;
description
"ODU1 protocol (2.49G)";
}
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identity client-signal-ODU2 {
base client-signal;
description
"Client signal type of ODU2 (10.03G)";
}
identity client-signal-ODU2e {
base client-signal;
description
"Client signal type of ODU2e (10.39G)";
}
identity client-signal-ODU3 {
base client-signal;
description
"Client signal type of ODU3 (40.31G)";
}
/*
identity client-signal-ODU3e2 {
base client-signal;
description
"Client signal type of ODU3e2 (41.78G)";
}
*/
identity client-signal-ODU4 {
base client-signal;
description
"Client signal type of ODU4 (104.79G)";
}
identity client-signal-ODUFlex-cbr {
base client-signal;
description
"Client signal type of ODU Flex CBR";
}
identity client-signal-ODUFlex-gfp {
base client-signal;
description
"Client signal type of ODU Flex GFP";
}
identity client-signal-ODUCn {
base client-signal;
description
"Client signal type of ODUCn (beyond 100G).";
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}
identity client-signal-FC400 {
base client-signal;
description
"Client signal type of Fibre Channel FC400.";
}
identity client-signal-FC800 {
base client-signal;
description
"Client signal type of Fibre Channel FC800.";
}
identity client-signal-FICON-4G {
base client-signal;
description
"Client signal type of Fibre Connection 4G.";
}
identity client-signal-FICON-8G {
base client-signal;
description
"Client signal type of Fibre Connection 8G.";
}
}
<CODE ENDS>
3. Security Considerations
TBD
4. IANA Considerations
TBD
5. Acknowledgements
6. Normative References
[G.709] ITU-T, "Interfaces for the Optical Transport Network
(OTN), G.709/Y.1331 Recommendation", June 2016.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<http://www.rfc-editor.org/info/rfc6020>.
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[RFC7139] Zhang, F., Ed., Zhang, G., Belotti, S., Ceccarelli, D.,
and K. Pithewan, "GMPLS Signaling Extensions for Control
of Evolving G.709 Optical Transport Networks", RFC 7139,
DOI 10.17487/RFC7139, March 2014,
<http://www.rfc-editor.org/info/rfc7139>.
Authors' Addresses
Anurag Sharma
Infinera Corp
169 Java Drive
Sunnyvale, CA 94089
USA
Phone: +1-408-572-5365
Email: AnSharma@infinera.com
Rajan Rao
Infinera Corp
169 Java Drive
Sunnyvale, CA 94089
USA
Phone: +1-408-543-7755
Email: rrao@infinera.com
Xian Zhang
Huawei Technologies
F3-5-B R&D Center, Huawei Industrial Base, Bantian, Longgang District
Shenzhen, Guangdong 518129
P.R.China
Email: zhang.xian@huawei.com
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