draft-ietf-pim-igmp-mld-snooping-yang-15.txt   draft-ietf-pim-igmp-mld-snooping-yang-16.txt 
PIM Working Group H. Zhao PIM Working Group H. Zhao
Internet Draft Ericsson Internet Draft Ericsson
Intended status: Standards Track X. Liu Intended status: Standards Track X. Liu
Expires: December 29, 2020 Volta Networks Expires: January 05, 2021 Volta Networks
Y. Liu Y. Liu
China Mobile China Mobile
M. Sivakumar M. Sivakumar
Juniper Juniper
A. Peter A. Peter
Individual Individual
June 30, 2020 July 06, 2020
A Yang Data Model for IGMP and MLD Snooping A Yang Data Model for IGMP and MLD Snooping
draft-ietf-pim-igmp-mld-snooping-yang-15.txt draft-ietf-pim-igmp-mld-snooping-yang-16.txt
Abstract Abstract
This document defines a YANG data model that can be used to configure This document defines a YANG data model that can be used to configure
and manage Internet Group Management Protocol (IGMP) and Multicast and manage Internet Group Management Protocol (IGMP) and Multicast
Listener Discovery (MLD) Snooping devices. The YANG module in this Listener Discovery (MLD) Snooping devices. The YANG module in this
document conforms to Network Management Datastore Architecture (NMDA). document conforms to Network Management Datastore Architecture (NMDA).
Status of this Memo Status of this Memo
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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."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html http://www.ietf.org/shadow.html
This Internet-Draft will expire on December 29, 2020. This Internet-Draft will expire on January 05, 2021.
Copyright Notice Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the Copyright (c) 2020 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
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| dot1q | ieee802-dot1q-bridge | [dot1Qcp] | | dot1q | ieee802-dot1q-bridge | [dot1Qcp] |
+----------+-----------------------+---------------------------------+ +----------+-----------------------+---------------------------------+
Table 1: Prefixes and Corresponding YANG Modules Table 1: Prefixes and Corresponding YANG Modules
2. Design of Data Model 2. Design of Data Model
An IGMP/MLD snooping switch [RFC4541] analyzes IGMP/MLD packets and sets An IGMP/MLD snooping switch [RFC4541] analyzes IGMP/MLD packets and sets
up forwarding tables for multicast traffic. If a switch does not run up forwarding tables for multicast traffic. If a switch does not run
IGMP/MLD snooping, multicast traffic will be flooded in the broadcast IGMP/MLD snooping, multicast traffic will be flooded in the broadcast
domain. If a switch runs IGMP/MLD snooping, multicast traffic will be domain. If a switch runs IGMP/MLD snooping, multicast traffic will be
forwarded based on the forwarding tables to avoid bandwidth waste. The forwarded based on the forwarding tables to avoid wasting bandwidth. The
IGMP/MLD snooping switch does not need to run any of the IGMP/MLD IGMP/MLD snooping switch does not need to run any of the IGMP/MLD
protocols. Because the IGMP/MLD snooping is independent of the IGMP/MLD protocols. Because the IGMP/MLD snooping is independent of the IGMP/MLD
protocols, the data model defined in this document does not augment, or protocols, the data model defined in this document does not augment, or
even require, the IGMP/MLD data model defined in [RFC8652]. even require, the IGMP/MLD data model defined in [RFC8652].
The model covers considerations for Internet Group Management Protocol The model covers considerations for Internet Group Management Protocol
(IGMP) and Multicast Listener Discovery (MLD) Snooping Switches (IGMP) and Multicast Listener Discovery (MLD) Snooping Switches
[RFC4541]. [RFC4541].
IGMP and MLD snooping switches do not adhere to the conceptual model IGMP and MLD snooping switches do not adhere to the conceptual model
that provides the strict separation of functionality between different that provides the strict separation of functionality between different
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ims:igmp-snooping-instance/ims:clear-igmp-snooping-groups ims:igmp-snooping-instance/ims:clear-igmp-snooping-groups
ims:mld-snooping-instance/ims:clear-mld-snooping-groups ims:mld-snooping-instance/ims:clear-mld-snooping-groups
Some of the actions in this YANG module may be considered sensitive or Some of the actions in this YANG module may be considered sensitive or
vulnerable in some network environments. The IGMP & MLD Snooping YANG vulnerable in some network environments. The IGMP & MLD Snooping YANG
module supports the "clear-igmp-snooping-groups" and "clear-mld- module supports the "clear-igmp-snooping-groups" and "clear-mld-
snooping-groups" actions. If unauthorized action is invoked, the IGMP snooping-groups" actions. If unauthorized action is invoked, the IGMP
and MLD Snooping group tables will be cleared unexpectedly. Especially and MLD Snooping group tables will be cleared unexpectedly. Especially
when using wildcard on group and source, the impact will be dramatic. when using wildcard, all the multicast traffic will be flooded in the
broadcast domain. The devices that use this YANG module should heed the
Security Considerations in [RFC4541].
6. IANA Considerations 6. IANA Considerations
RFC Ed.: In this section, replace all occurrences of 'XXXX' with the RFC Ed.: In this section, replace all occurrences of 'XXXX' with the
actual RFC number (and remove this note). actual RFC number (and remove this note).
This document registers the following namespace URIs in the IETF XML This document registers the following namespace URIs in the IETF XML
registry [RFC3688]: registry [RFC3688]:
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