YANG Data Model for Maximum SID Depth Types and MPLS Maximum SID Depth
draft-ietf-mpls-msd-yang-12
| Document | Type | Active Internet-Draft (mpls WG) | |
|---|---|---|---|
| Authors | Yingzhen Qu , Acee Lindem , Stephane Litkowski , Jeff Tantsura | ||
| Last updated | 2024-07-24 (Latest revision 2024-07-05) | ||
| Replaces | draft-qu-mpls-mpls-msd-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | Proposed Standard | ||
| Formats | |||
| Yang Validation | 0 errors, 0 warnings | ||
| Reviews |
GENART Last Call review
(of
-05)
by Paul Kyzivat
Ready w/issues
YANGDOCTORS Early review
(of
-02)
by Jan Lindblad
Ready w/issues
|
||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Tarek Saad | ||
| Shepherd write-up | Show Last changed 2024-05-20 | ||
| IESG | IESG state | RFC Ed Queue | |
| Action Holders |
(None)
|
||
| Consensus boilerplate | Yes | ||
| Telechat date | (None) | ||
| Responsible AD | Jim Guichard | ||
| Send notices to | tsaad@cisco.com | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
| IANA action state | Waiting on RFC Editor | ||
| IANA expert review state | Expert Reviews OK | ||
| RFC Editor | RFC Editor state | EDIT | |
| Details |
draft-ietf-mpls-msd-yang-12
MPLS Working Group Y. Qu
Internet-Draft Futurewei Technologies
Intended status: Standards Track A. Lindem
Expires: 6 January 2025 LabN Consulting, L.L.C.
S. Litkowski
Cisco Systems
J. Tantsura
Nvidia
5 July 2024
YANG Data Model for Maximum SID Depth Types and MPLS Maximum SID Depth
draft-ietf-mpls-msd-yang-12
Abstract
This document defines two YANG data modules. The first is the
initial version of the IANA-maintained YANG module for Maximum
Segment Identifier (SID) Depths (MSDs) Types, which includes
identities for both the MPLS and SRv6 data planes. The second
augments the IETF MPLS YANG model to provide support for MPLS MSDs as
defined in RFC 8476 and RFC 8491.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 6 January 2025.
Copyright Notice
Copyright (c) 2024 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
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Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
Table of Contents
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Design of the Model . . . . . . . . . . . . . . . . . . . . . 2
2.1. IANA MSD Types Module . . . . . . . . . . . . . . . . . . 3
2.2. IETF MPLS MSD Module . . . . . . . . . . . . . . . . . . 3
3. Tree for IETF MPLS MSD Types YANG Module . . . . . . . . . . 3
4. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1. IANA-Maintained Module for MSD-Types . . . . . . . . . . 4
4.2. MPLS MSD YANG . . . . . . . . . . . . . . . . . . . . . . 7
5. Security Considerations . . . . . . . . . . . . . . . . . . . 9
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
6.1. Registering YANG Modules . . . . . . . . . . . . . . . . 10
6.2. IANA MSD-Types Module . . . . . . . . . . . . . . . . . . 11
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 12
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.1. Normative References . . . . . . . . . . . . . . . . . . 13
8.2. Informative References . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15
1. Overview
There are two YANG modules defined in this document. Module iana-
msd-types defines the identities for Maximum Segment Identifier (SID)
Depth (MSD) Types as per the IANA IGP MSD-Types registry
[IANA-IGP-MSD-Types], which include MSD types for both the MPLS data
plane and the SRv6 data plane. This document also defines module
ietf-mpls-msd augmenting the IETF MPLS YANG model [RFC8960], which
itself augments the routing RIB data model [RFC8349], to provide
operational state for various MSDs[RFC8662] for the MPLS data plane.
The module augments the base MPLS model with a list of various types
of node MSDs, as well as various types of MSDs on links.
The YANG modules in this document conform to the Network Management
Datastore Architecture (NMDA) [RFC8342].
2. Design of the Model
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2.1. IANA MSD Types Module
IANA has created an IANA-managed registry titled "IGP MSD-Types"
under the "Interior Gateway Protocol (IGP) Parameters" registry to
identify MSD-Types. Module iana-msd-types is an IANA-maintained
module, which defines the identities for the MSD-Types as in the IANA
IGP MSD-Types registry.
On top of the base identity "msd-base", identity "msd-base-mpls" is
defined to serve as the base for MSD types for MPLS data plane, and
identity "msd-base-srh" is defined to serve as the base for MSD types
for Segment Routing Header (SRH) in IPv6 data plane.
This module will be maintained by IANA and updated if and when there
is any change to the registry.
2.2. IETF MPLS MSD Module
Module ietf-mpls-msd augments the base MPLS model [RFC8960], and it
provides support of different types of MSDs in MPLS data plane.
As defined in [RFC8491], a Link MSD is the number of SIDs supported
by a node's link, while a Node MSD is the smallest MSD supported by
the node across all its interfaces. The module defines lists of MSDs
with different MSD Types for a node and links. Please note that
these are read-only data as per the node's hardware capability.
3. Tree for IETF MPLS MSD Types YANG Module
This document uses the graphical representation of data models per
[RFC8340].
module: ietf-mpls-msd
augment /rt:routing/mpls:mpls:
+--ro node-msds
+--ro node-msd* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/mpls:mpls/mpls:interfaces/mpls:interface:
+--ro link-msds
+--ro link-msd* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
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4. YANG Modules
There are two YANG modules defined in this document.
4.1. IANA-Maintained Module for MSD-Types
This document defines the initial version of the IANA-maintained YANG
module for MSD Types, which mirrors the IANA IGP MSD-Types registry
[IANA-IGP-MSD-Types].
<CODE BEGINS> file "iana-msd-types@2024-07-04.yang"
module iana-msd-types {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:iana-msd-types";
prefix iana-msd-types;
organization
"Internet Assigned Numbers Authority (IANA)";
contact
"Internet Assigned Numbers Authority
ICANN
12025 Waterfront Drive, Suite 300
Los Angeles, CA 90094-2536
United States of America
Tel: +1 310 301 5800
<mailto:iana@iana.org>";
description
"The YANG module defines the identities for Maximum Segment
Identifier (SID) Depth (MSD) Types.
This YANG module is maintained by IANA and reflects the 'IGP
MSD-Types' registry.
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This initial version of this YANG module is part of RFC XXXX
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(https://www.rfc-editor.org/info/rfcXXXX); see the RFC itself
for full legal notices.
//RFC Ed.: replace XXXX with actual RFC number and remove
this note
//RFC Ed.: replace IANA_FOO_URL and remove this note.
The latest version of this YANG module is available at
<IANA_FOO_URL>.";
revision 2024-07-04 {
description
"Initial Version";
reference
"RFC XXXX: YANG Data Model for Maximum SID Depth Types and
MPLS Maximum SID Depth";
}
identity msd-base {
description
"Base identity for Maximum SID Depth (MSD) Type. The MSD type
definition is defined in IANA IGP MSD-Types registry.";
}
identity msd-base-mpls {
base msd-base;
description
"Base identity of MSD types for MPLS data plane.";
}
identity base-mpls-imposition-msd {
base msd-base-mpls;
description
"Base MPLS Imposition MSD.";
reference
"RFC 8491: Signaling Maximum SID Depth (MSD) using IS-IS
RFC 8476: Signaling Maximum SID Depth (MSD) using OSPF
RFC 8664: Path Computation Element Communication Protocol
(PCEP) Extensions for Segment Routing
RFC 8814: Signaling Maximum SID Depth (MSD) Using the Border
Gateway Protocol - Link State";
}
identity erld-msd {
base msd-base-mpls;
description
"msd-erld is defined to advertise the Entropy Readable
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Label Depth (ERLD).";
reference
"RFC 8662: Entropy Label for Source Packet Routing in
Networking (SPRING) Tunnels
RFC 9088: Signaling Entropy Label Capability and Entropy
Readable Label Depth Using IS-IS";
}
identity msd-base-srh {
base msd-base;
description
"Base identity of MSD types for Segment Routing Header (SRH).";
}
identity srh-max-sl {
base msd-base-srh;
description
"The Maximum Segment Left MSD type.";
reference
"RFC 9352: IS-IS Extensions to Support Segment Routing
over the IPv6 Data Plane";
}
identity srh-max-end-pop {
base msd-base-srh;
description
"The Maximum End Pop MSD Type.";
reference
"RFC 9352: IS-IS Extensions to Support Segment Routing
over the IPv6 Data Plane";
}
identity srh-max-h-encaps {
base msd-base-srh;
description
"The Maximum H.Encaps MSD Type.";
reference
"RFC 9352: IS-IS Extensions to Support Segment Routing
over the IPv6 Data Plane";
}
identity srh-max-end-d {
base msd-base-srh;
description
"The Maximum End D MSD Type.";
reference
"RFC 9352: IS-IS Extensions to Support Segment Routing
over the IPv6 Data Plane";
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}
}
<CODE ENDS>
4.2. MPLS MSD YANG
This document also defines a YANG module for MSD extensions
[RFC8476][RFC8491] to MPLS base model as defined in [RFC8960].
<CODE BEGINS> file "ietf-mpls-msd@2024-07-05.yang"
module ietf-mpls-msd {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-mpls-msd";
prefix mpls-msd;
import ietf-routing {
prefix rt;
reference
"RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-mpls {
prefix mpls;
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
import iana-msd-types {
prefix iana-msd-types;
}
organization
"IETF Multiprotocol Label Switching (MPLS) Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/mpls/>
WG List: <mailto:mpls@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>
Author: Stephane Litkowski
<mailto:slitkows.ietf@gmail.com>
Author: Jeff Tantsura
<mailto:jefftant.ietf@gmail.com>
";
description
"The YANG module augments the base MPLS model, and it is to
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provide support for different types of Maximum SID Depth (MSD).
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
revision 2024-07-05 {
description
"Initial Version";
reference
"RFC XXXX: YANG Data Model for Maximum SID Depth Types and
MPLS Maximum SID Depth";
}
grouping msd-type-value {
description
"Grouping for MSD type and value.";
leaf msd-type {
type identityref {
base iana-msd-types:msd-base-mpls;
}
description
"MSD types. The MSD type is defined in IANA IGP
MSD-Types registry.";
}
leaf msd-value {
type uint8;
description
"MSD value, in the range of 0-255. 0 represents the lack
of ability to support a SID stack of any depth.";
}
}
augment "/rt:routing/mpls:mpls" {
description
"This module augments MPLS data model (RFC 8960)
with node MSD.";
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container node-msds {
config false;
description
"Maximum SID Depth (MSD) of a node.";
list node-msd {
key "msd-type";
uses msd-type-value;
description
"List of different types of node MSDs. For the same
type, the value of node MSD is the smallest among link MSD
values.";
}
}
}
augment "/rt:routing/mpls:mpls/mpls:interfaces/mpls:interface" {
description
"This module augments MPLS data model (RFC 8960)
with link MSD.";
container link-msds {
config false;
description
"Maximum SID Depth (MSD) of an interface.";
list link-msd {
key "msd-type";
uses msd-type-value;
description
"List of different types of MSDs on the link.";
}
}
}
}
<CODE ENDS>
5. Security Considerations
The YANG modules specified in this document define a schema for data
that is designed to be accessed via network management protocols such
as NETCONF [RFC6241] or RESTCONF [RFC8040]. These network management
protocols are required to use a secure transport layer and mutual
authentication, e.g., SSH [RFC6242] without the "none" authentication
option, Transport Layer Security (TLS) [RFC8446] with mutual X.509
authentication, and HTTPS with HTTP authentication (Section 11 of
[RFC9110]).
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The NETCONF Access Control Model (NACM) [RFC8341] provides the means
to restrict access for particular NETCONF or RESTCONF users to a pre-
configured subset of all available NETCONF or RESTCONF protocol
operations and content.
Some of the readable data nodes in the ietf-mpls-msd YANG module may
be considered sensitive or vulnerable in some network environments.
It is thus important to control read access (e.g., via get, get-
config, or notification) to these data nodes. These are the subtrees
and data nodes and their sensitivity/vulnerability:
/rt:routing/mpls:mpls/msd/node-msds
/rt:routing/mpls:mpls/msd/link-msds
Exposure of the node's maximum SID depth may be useful in mounting
a Denial-of-Service (DoS) attack by sending packets to the node
that the router can't process.
The iana-msd-types YANG module defines a set of identities, which
mirrors the IANA IGP MSD-Types registry. These identities are
intended to be reused by other YANG modules. The module by itself
does not expose any data nodes that are writable or readable. As
such, there are no additional security issues related to this YANG
module that need to be considered.
6. IANA Considerations
6.1. Registering YANG Modules
This document registers URIs in the IETF XML registry [RFC3688].
Following the format in [RFC3688], the following registrations are
requested to be made:
URI: urn:ietf:params:xml:ns:yang:iana-msd-types
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-mpls-msd
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
This document registers the YANG modules in the YANG Module Names
registry [RFC6020].
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name: iana-msd-types
Maintained by IANA? Y
namespace: urn:ietf:params:xml:ns:yang:iana-msd-types
prefix: iana-msd-types
reference: RFC XXXX
name: ietf-mpls-msd
Maintained by IANA? N
namespace: urn:ietf:params:xml:ns:yang:ietf-mpls-msd
prefix: mpls-msd
reference: RFC XXXX
6.2. IANA MSD-Types Module
This document defines the initial version of the IANA-maintained
"iana-msd-types" YANG module Section 4.1. The latest version of the
YANG module is available from the "YANG Parameters" registry
[IANA-YANG-Parameters].
IANA is requested to add this note to the "YANG Module Names"
registry:
MSD Types must not be added directly to the iana-msd-types YANG
module. They must first be added to [IANA-IGP-MSD-Types], which
it mirrors.
The identities defined in the iana-msd-types YANG module are
organized hierarchically based on the data plane. In this initial
version, only MPLS and SRv6 data planes are supported, hence "msd-
base-mpls" and "msd-base-srh" are defined. When a new data plane is
added to the "IGP MSD-Types" registry, a new "identity" statement
should be added to the "iana-msd-types" YANG module. The name of the
"identity" is the prefix "msd-base-" plus a lower-case version of the
data plane name . The identity statement should have the following
sub-statements defined:
"base": Contains 'msd-base'.
"description": Replicates the description from "msd-base-mpls" and
change the corresponding data plane name.
"reference": Replicates the reference from the registry with the
title of the document added.
When an MSD type is added to the "IGP MSD-Types" registry, a new
"identity" statement must be added to the "iana-msd-types" YANG
module. Then name of the "identity" is a lower-case version of the
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type name provided in the name with the space replaced with "-". The
"identity" statement should have the following sub-statements
defined:
"base": Contains the base name of the corresponding data
plane.
"description": Replicates the name from the registry.
"reference": Replicates the reference from the registry with the
title of the document added.
Unassigned or reserved values are not present in the module.
When the "iana-msd-types" YANG module is updated, a new "revision"
statement with a unique revision date must be added in front of the
existing revision statements.
IANA is requested to the add a "data-plane" column to the "IGP MSD-
Types" registry. This will unequivocally identify the base identity
for MSD-Types. The values for the Data-Plane column for existing
MSD-Types are:
Value Name Data-Plane Reference
0 Reserved N/A [RFC8491]
1 Base MPLS Imposition MSD MPLS [RFC8491]
2 ERLD-MSD MPLS [RFC9088]
3-40 Unassigned N/A
41 SRH Max SL SRv6 [RFC9352]
42 SRH Max End Pop SRv6 [RFC9352]
43 Unassigned N/A
44 SRH Max H.encaps SRv6 [RFC9352]
45 SRH Max End SRv6 [RFC9352]
46-250 Unassigned N/A
251-254 Experimental Use N/A [RFC8491]
255 Reserved N/A [RFC8491]
IANA is requested to add this note to [IANA-IGP-MSD-Types]:
When this registry is modified, the YANG module "iana-msd-types"
must be updated as defined in RFC XXXX.
7. Acknowledgements
This document was produced using Marshall Rose's xml2rfc tool.
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The YANG model was developed using the suite of YANG tools written
and maintained by numerous authors.
We would like to thank Jan Lindblad, Tom Petch, Dhruv Dhody, Mohamed
Boucadair and Susan Hares for their reviews and comments.
8. References
8.1. Normative References
[IANA-IGP-MSD-Types]
IANA, "IGP MSD-Types", <https://www.iana.org/assignments/
igp-parameters/igp-parameters.xhtml#igp-msd-types>.
[IANA-YANG-Parameters]
IANA, "YANG Module Names",
<https://www.iana.org/assignments/yang-parameters>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[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>.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/info/rfc6242>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/info/rfc8341>.
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[RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K.,
and R. Wilton, "Network Management Datastore Architecture
(NMDA)", RFC 8342, DOI 10.17487/RFC8342, March 2018,
<https://www.rfc-editor.org/info/rfc8342>.
[RFC8349] Lhotka, L., Lindem, A., and Y. Qu, "A YANG Data Model for
Routing Management (NMDA Version)", RFC 8349,
DOI 10.17487/RFC8349, March 2018,
<https://www.rfc-editor.org/info/rfc8349>.
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018,
<https://www.rfc-editor.org/info/rfc8446>.
[RFC8476] Tantsura, J., Chunduri, U., Aldrin, S., and P. Psenak,
"Signaling Maximum SID Depth (MSD) Using OSPF", RFC 8476,
DOI 10.17487/RFC8476, December 2018,
<https://www.rfc-editor.org/info/rfc8476>.
[RFC8491] Tantsura, J., Chunduri, U., Aldrin, S., and L. Ginsberg,
"Signaling Maximum SID Depth (MSD) Using IS-IS", RFC 8491,
DOI 10.17487/RFC8491, November 2018,
<https://www.rfc-editor.org/info/rfc8491>.
[RFC8960] Saad, T., Raza, K., Gandhi, R., Liu, X., and V. Beeram, "A
YANG Data Model for MPLS Base", RFC 8960,
DOI 10.17487/RFC8960, December 2020,
<https://www.rfc-editor.org/info/rfc8960>.
[RFC9088] Xu, X., Kini, S., Psenak, P., Filsfils, C., Litkowski, S.,
and M. Bocci, "Signaling Entropy Label Capability and
Entropy Readable Label Depth Using IS-IS", RFC 9088,
DOI 10.17487/RFC9088, August 2021,
<https://www.rfc-editor.org/info/rfc9088>.
[RFC9110] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
Ed., "HTTP Semantics", STD 97, RFC 9110,
DOI 10.17487/RFC9110, June 2022,
<https://www.rfc-editor.org/info/rfc9110>.
[RFC9352] Psenak, P., Ed., Filsfils, C., Bashandy, A., Decraene, B.,
and Z. Hu, "IS-IS Extensions to Support Segment Routing
over the IPv6 Data Plane", RFC 9352, DOI 10.17487/RFC9352,
February 2023, <https://www.rfc-editor.org/info/rfc9352>.
8.2. Informative References
Qu, et al. Expires 6 January 2025 [Page 14]
Internet-Draft MPLS MSD YANG July 2024
[RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
<https://www.rfc-editor.org/info/rfc8340>.
[RFC8662] Kini, S., Kompella, K., Sivabalan, S., Litkowski, S.,
Shakir, R., and J. Tantsura, "Entropy Label for Source
Packet Routing in Networking (SPRING) Tunnels", RFC 8662,
DOI 10.17487/RFC8662, December 2019,
<https://www.rfc-editor.org/info/rfc8662>.
Authors' Addresses
Yingzhen Qu
Futurewei Technologies
Email: yingzhen.ietf@gmail.com
Acee Lindem
LabN Consulting, L.L.C.
Email: acee.ietf@gmail.com
Stephane Litkowski
Cisco Systems
Email: slitkows.ietf@gmail.com
Jeff Tantsura
Nvidia
Email: jefftant.ietf@gmail.com
Qu, et al. Expires 6 January 2025 [Page 15]