A Yang Data Model for IGMP and MLD Snooping
draft-ietf-pim-igmp-mld-snooping-yang-18
PIM Working Group H. Zhao
Internet Draft Ericsson
Intended status: Standards Track X. Liu
Expires: February 14, 2021 Volta Networks
Y. Liu
China Mobile
M. Sivakumar
Juniper
A. Peter
Individual
August 15, 2020
A Yang Data Model for IGMP and MLD Snooping
draft-ietf-pim-igmp-mld-snooping-yang-18.txt
Abstract
This document defines a YANG data model that can be used to configure
and manage Internet Group Management Protocol (IGMP) and Multicast
Listener Discovery (MLD) Snooping devices. The YANG module in this
document conforms to Network Management Datastore Architecture (NMDA).
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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Task Force (IETF), its areas, and its working groups. Note that
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This Internet-Draft will expire on February 14, 2021.
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Copyright Notice
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document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
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Table of Contents
1. Introduction...................................................3
1.1. Terminology...............................................3
1.2. Tree Diagrams.............................................3
1.3. Prefixes in Data Node Names...............................4
2. Design of Data Model...........................................4
2.1. Overview..................................................5
2.2. Optional Capabilities.....................................5
2.3. Position of Address Family in Hierarchy...................6
3. Module Structure...............................................6
3.1. IGMP Snooping Instances...................................7
3.2. MLD Snooping Instances....................................9
3.3. Using IGMP and MLD Snooping Instances....................11
3.4. IGMP and MLD Snooping Actions............................12
4. IGMP and MLD Snooping YANG Module.............................12
5. Security Considerations.......................................34
6. IANA Considerations...........................................36
6.1. XML Registry.............................................36
6.2. YANG Module Names Registry...............................36
7. References....................................................37
7.1. Normative References.....................................37
7.2. Informative References...................................39
Appendix A. Data Tree Example...................................40
A.1 Bridge service............................................40
A.2 L2VPN service.............................................43
Authors' Addresses...............................................47
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1. Introduction
This document defines a YANG [RFC7950] data model for the management of
Internet Group Management Protocol (IGMP) and Multicast Listener
Discovery (MLD) Snooping [RFC4541] devices.
The YANG module in this document conforms to the Network Management
Datastore Architecture defined in [RFC8342]. The "Network Management
Datastore Architecture" (NMDA) adds the ability to inspect the current
operational values for configuration, allowing clients to use identical
paths for retrieving the configured values and the operational values.
1.1. Terminology
The terminology for describing YANG data models is found in [RFC6020]
and [RFC7950], including:
* augment
* data model
* data node
* identity
* module
The following terminologies are used in this document:
* mrouter: multicast router, which is a router that has multicast
routing enabled [RFC4286].
* mrouter interfaces: snooping switch ports where multicast routers
are attached [RFC4541].
The following abbreviations are used in this document and defined model:
IGMP: Internet Group Management Protocol [RFC3376].
MLD: Multicast Listener Discovery [RFC3810].
AC: Attachment Circuit [RFC3916].
PW: Pseudo Wire [RFC3916].
1.2. Tree Diagrams
Tree diagrams used in this document follow the notation defined in
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[RFC8340].
1.3. Prefixes in Data Node Names
In this document, names of data nodes, actions, and other data model
objects are often used without a prefix, as long as it is clear from the
context in which YANG module each name is defined. Otherwise, names are
prefixed using the standard prefix associated with the corresponding
YANG module, as shown in Table 1.
+----------+-----------------------+---------------------------------+
| Prefix | YANG module | Reference |
+==========+=======================+=================================+
| inet | ietf-inet-types | [RFC6991] |
+----------+-----------------------+---------------------------------+
| yang | ietf-yang-types | [RFC6991] |
+----------+-----------------------+---------------------------------+
| if | ietf-interfaces | [RFC8343] |
+----------+-----------------------+---------------------------------+
| rt | ietf-routing | [RFC8349] |
+----------+-----------------------+---------------------------------+
| rt-types | ietf-routing-types | [RFC8294] |
+----------+-----------------------+---------------------------------+
| ni | ietf-network-instance | [RFC8529] |
+----------+-----------------------+---------------------------------+
| pw | ietf-pseudowires | [draft-ietf-bess-l2vpn-yang] |
+----------+-----------------------+---------------------------------+
| l2vpn | ietf-l2vpn | [draft-ietf-bess-l2vpn-yang] |
+----------+-----------------------+---------------------------------+
| dot1q | ieee802-dot1q-bridge | [dot1Qcp] |
+----------+-----------------------+---------------------------------+
Table 1: Prefixes and Corresponding YANG Modules
2. Design of Data Model
An IGMP/MLD snooping switch [RFC4541] analyzes IGMP/MLD packets and sets
up forwarding tables for multicast traffic. If a switch does not run
IGMP/MLD snooping, multicast traffic will be flooded in the broadcast
domain. If a switch runs IGMP/MLD snooping, multicast traffic will be
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
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protocols. Because the IGMP/MLD snooping is independent of the IGMP/MLD
protocols, the data model defined in this document does not augment, or
even require, the IGMP/MLD data model defined in [RFC8652].
The model covers considerations for Internet Group Management Protocol
(IGMP) and Multicast Listener Discovery (MLD) Snooping Switches
[RFC4541].
IGMP and MLD snooping switches do not adhere to the conceptual model
that provides the strict separation of functionality between different
communications layers in the ISO model, and instead utilize information
in the upper level protocol headers as factors to be considered in
processing at the lower levels [RFC4541].
IGMP Snooping switches utilize IGMP, and could support IGMPv1 [RFC1112],
IGMPv2 [RFC2236], and IGMPv3 [RFC3376]. MLD Snooping switches utilize
MLD, and could support MLDv1 [RFC2710] and MLDv2 [RFC3810]. The goal of
this document is to define a data model that provides a common user
interface to IGMP and MLD Snooping.
2.1. Overview
The IGMP and MLD Snooping YANG module defined in this document has all
the common building blocks for the IGMP and MLD Snooping switches.
The YANG module includes IGMP and MLD Snooping instance definition,
using instance in the L2 service type of BRIDGE [dot1Qcp] and L2VPN
[draft-ietf-bess-l2vpn-yang]. The module also includes actions for
clearing IGMP and MLD Snooping group tables.
2.2. Optional Capabilities
This model is designed to represent the basic capability subsets of IGMP
and MLD Snooping. The main design goals of this document are that the
basic capabilities described in the model are supported by any major
now-existing implementation, and that the configuration of all
implementations meeting the specifications is easy to express through
some combination of the optional features in the model and simple vendor
augmentations.
There is also value in widely supported features being standardized, to
provide a standardized way to access these features, to save work for
individual vendors, and so that mapping between different vendors'
configuration is not needlessly complicated. Therefore, this model
declares a number of features representing capabilities that not all
deployed devices support.
The extensive use of feature declarations should also substantially
simplify the capability negotiation process for a vendor's IGMP and MLD
Snooping implementations.
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On the other hand, operational state parameters are not so widely
designated as features, as there are many cases where the defaulting
of an operational state parameter would not cause any harm to the
system, and it is much more likely that an implementation without
native support for a piece of operational state would be able to derive
a suitable value for a state variable that is not natively supported.
2.3. Position of Address Family in Hierarchy
IGMP Snooping only supports IPv4, while MLD Snooping only supports IPv6.
The data model defined in this document can be used for both IPv4 and
IPv6 address families.
This document defines IGMP Snooping and MLD Snooping as separate schema
branches in the structure. The benefits are:
* The model can support IGMP Snooping (IPv4), MLD Snooping (IPv6), or
both optionally and independently. Such flexibility cannot be achieved
cleanly with a combined branch.
* The structure is consistent with other YANG data models such as
[RFC8652], which uses separate branches for IPv4 and IPv6.
* Having separate branches for IGMP Snooping and MLD Snooping allows
minor differences in their behavior to be modelled more simply and
cleanly. The two branches can better support different features and node
types.
3. Module Structure
This model augments the core routing data model specified in [RFC8349].
+--rw routing
+--rw router-id?
+--rw control-plane-protocols
| +--rw control-plane-protocol* [type name]
| +--rw type
| +--rw name
| +--rw igmp-snooping-instance <= Augmented by this Model
...
| +--rw mld-snooping-instance <= Augmented by this Model
...
The "igmp-snooping-instance" container instantiates an IGMP Snooping
Instance. The "mld-snooping-instance" container instantiates an MLD
Snooping Instance.
The YANG data model defined in this document conforms to the Network
Management Datastore Architecture (NMDA) [RFC8342]. The operational
state data is combined with the associated configuration data in the
same hierarchy [RFC8407].
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3.1. IGMP Snooping Instances
The YANG module ietf-igmp-mld-snooping augments /rt:routing/rt:control-
plane-protocols/rt:control-plane-protocol to add the igmp-snooping-
instance container.
All the IGMP Snooping related attributes have been defined in the igmp-
snooping-instance. The read-write attributes represent configurable
data. The read-only attributes represent state data.
One igmp-snooping-instance could be used in one BRIDGE [dot1Qcp]
instance or L2VPN [draft-ietf-bess-l2vpn-yang] instance. One igmp-
snooping-instance corresponds to one BRIDGE instance or one L2VPN
instance.
The value of l2-service-type in igmp-snooping-instance is bridge or
l2vpn. When it is bridge, igmp-snooping-instance will be used in the
BRIDGE service. When it is l2vpn, igmp-snooping-instance will be used in
the L2VPN service.
The values of bridge-mrouter-interface, l2vpn-mrouter-interface-ac,
l2vpn-mrouter-interface-pw are filled by the snooping device
dynamically. They are different from static-bridge-mrouter-interface,
static-l2vpn-mrouter-interface-ac, and static-l2vpn-mrouter-interface-pw
which are configured.
The attributes under the interfaces show the statistics of IGMP Snooping
related packets.
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol:
+--rw igmp-snooping-instance {igmp-snooping}?
+--rw l2-service-type? l2-service-type
+--rw enable? boolean
+--rw forwarding-table-type? enumeration
+--rw explicit-tracking? boolean
| {explicit-tracking}?
+--rw lite-exclude-filter? empty
| {lite-exclude-filter}?
+--rw send-query? boolean
+--rw immediate-leave? empty
| {immediate-leave}?
+--rw last-member-query-interval? uint16
+--rw query-interval? uint16
+--rw query-max-response-time? uint16
+--rw require-router-alert? boolean
| {require-router-alert}?
+--rw robustness-variable? uint8
+--rw static-bridge-mrouter-interface* if:interface-ref
| {static-mrouter-interface}?
+--rw static-l2vpn-mrouter-interface-ac* if:interface-ref
| {static-mrouter-interface}?
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+--rw static-l2vpn-mrouter-interface-pw* pw:pseudowire-ref
| {static-mrouter-interface}?
+--rw igmp-version? uint8
+--rw querier-source? inet:ipv4-address
+--rw static-l2-multicast-group* [group source-addr]
| {static-l2-multicast-group}?
| +--rw group
| | rt-types:ipv4-multicast-group-address
| +--rw source-addr
| | rt-types:ipv4-multicast-source-address
| +--rw bridge-outgoing-interface* if:interface-ref
| +--rw l2vpn-outgoing-ac* if:interface-ref
| +--rw l2vpn-outgoing-pw* pw:pseudowire-ref
+--ro entries-count? yang:gauge32
+--ro bridge-mrouter-interface* if:interface-ref
+--ro l2vpn-mrouter-interface-ac* if:interface-ref
+--ro l2vpn-mrouter-interface-pw* pw:pseudowire-ref
+--ro group* [address]
| +--ro address
| | rt-types:ipv4-multicast-group-address
| +--ro mac-address? yang:phys-address
| +--ro expire? rt-types:timer-value-seconds16
| +--ro up-time uint32
| +--ro last-reporter? inet:ipv4-address
| +--ro source* [address]
| +--ro address
| | rt-types:ipv4-multicast-source-address
| +--ro bridge-outgoing-interface* if:interface-ref
| +--ro l2vpn-outgoing-ac* if:interface-ref
| +--ro l2vpn-outgoing-pw* pw:pseudowire-ref
| +--ro up-time uint32
| +--ro expire?
| | rt-types:timer-value-seconds16
| +--ro host-count? yang:gauge32
| | {explicit-tracking}?
| +--ro last-reporter? inet:ipv4-address
| +--ro host* [host-address] {explicit-tracking}?
| +--ro host-address inet:ipv4-address
| +--ro host-filter-mode filter-mode-type
+--ro interfaces
+--ro interface* [name]
+--ro name if:interface-ref
+--ro statistics
+--ro discontinuity-time? yang:date-and-time
+--ro received
| +--ro query-count? yang:counter64
| +--ro membership-report-v1-count? yang:counter64
| +--ro membership-report-v2-count? yang:counter64
| +--ro membership-report-v3-count? yang:counter64
| +--ro leave-count? yang:counter64
| +--ro pim-hello-count? yang:counter64
+--ro sent
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+--ro query-count? yang:counter64
+--ro membership-report-v1-count? yang:counter64
+--ro membership-report-v2-count? yang:counter64
+--ro membership-report-v3-count? yang:counter64
+--ro leave-count? yang:counter64
+--ro pim-hello-count? yang:counter64
3.2. MLD Snooping Instances
The YANG module ietf-igmp-mld-snooping augments /rt:routing/rt:control-
plane-protocols/rt:control-plane-protocol to add the mld-snooping-
instance container. The mld-snooping-instance could be used in the
BRIDGE [dot1Qcp] or L2VPN [draft-ietf-bess-l2vpn-yang] service to enable
MLD Snooping.
All the MLD Snooping related attributes have been defined in the mld-
snooping-instance. The read-write attributes represent configurable
data. The read-only attributes represent state data.
The mld-snooping-instance has similar structure as IGMP snooping. Some
of leaves are protocol related. The mld-snooping-instance uses IPv6
addresses and mld-version, while igmp-snooping-instance uses IPv4
addresses and igmp-version. Statistic counters in each of the above
snooping instances are also tailored to the specific protocol type. One
mld-snooping-instance could be used in one BRIDGE instance or L2VPN
instance. One mld-snooping-instance corresponds to one BRIDGE instance
or L2VPN instance.
The value of l2-service-type in mld-snooping-instance is bridge or
l2vpn. When it is bridge, mld-snooping-instance will be used in the
BRIDGE service. When it is l2vpn, mld-snooping-instance will be used in
the L2VPN service.
The values of bridge-mrouter-interface, l2vpn-mrouter-interface-ac,
l2vpn-mrouter-interface-pw are filled by the snooping device
dynamically. They are different from static-bridge-mrouter-interface,
static-l2vpn-mrouter-interface-ac, and static-l2vpn-mrouter-interface-pw
which are configured.
The attributes under the interfaces show the statistics of MLD Snooping
related packets.
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol:
+--rw mld-snooping-instance {mld-snooping}?
+--rw l2-service-type? l2-service-type
+--rw enable? boolean
+--rw forwarding-table-type? enumeration
+--rw explicit-tracking? boolean
| {explicit-tracking}?
+--rw lite-exclude-filter? empty
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| {lite-exclude-filter}?
+--rw send-query? boolean
+--rw immediate-leave? empty
| {immediate-leave}?
+--rw last-member-query-interval? uint16
+--rw query-interval? uint16
+--rw query-max-response-time? uint16
+--rw require-router-alert? boolean
| {require-router-alert}?
+--rw robustness-variable? uint8
+--rw static-bridge-mrouter-interface* if:interface-ref
| {static-mrouter-interface}?
+--rw static-l2vpn-mrouter-interface-ac* if:interface-ref
| {static-mrouter-interface}?
+--rw static-l2vpn-mrouter-interface-pw* pw:pseudowire-ref
| {static-mrouter-interface}?
+--rw mld-version? uint8
+--rw querier-source? inet:ipv6-address
+--rw static-l2-multicast-group* [group source-addr]
| {static-l2-multicast-group}?
| +--rw group
| | rt-types:ipv6-multicast-group-address
| +--rw source-addr
| | rt-types:ipv6-multicast-source-address
| +--rw bridge-outgoing-interface* if:interface-ref
| +--rw l2vpn-outgoing-ac* if:interface-ref
| +--rw l2vpn-outgoing-pw* pw:pseudowire-ref
+--ro entries-count? yang:gauge32
+--ro bridge-mrouter-interface* if:interface-ref
+--ro l2vpn-mrouter-interface-ac* if:interface-ref
+--ro l2vpn-mrouter-interface-pw* pw:pseudowire-ref
+--ro group* [address]
| +--ro address
| | rt-types:ipv6-multicast-group-address
| +--ro mac-address? yang:phys-address
| +--ro expire? rt-types:timer-value-seconds16
| +--ro up-time uint32
| +--ro last-reporter? inet:ipv6-address
| +--ro source* [address]
| +--ro address
| | rt-types:ipv6-multicast-source-address
| +--ro bridge-outgoing-interface* if:interface-ref
| +--ro l2vpn-outgoing-ac* if:interface-ref
| +--ro l2vpn-outgoing-pw* pw:pseudowire-ref
| +--ro up-time uint32
| +--ro expire?
| | rt-types:timer-value-seconds16
| +--ro host-count? yang:gauge32
| | {explicit-tracking}?
| +--ro last-reporter? inet:ipv6-address
| +--ro host* [host-address] {explicit-tracking}?
| +--ro host-address inet:ipv6-address
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| +--ro host-filter-mode filter-mode-type
+--ro interfaces
+--ro interface* [name]
+--ro name if:interface-ref
+--ro statistics
+--ro discontinuity-time? yang:date-and-time
+--ro received
| +--ro query-count? yang:counter64
| +--ro report-v1-count? yang:counter64
| +--ro report-v2-count? yang:counter64
| +--ro done-count? yang:counter64
| +--ro pim-hello-count? yang:counter64
+--ro sent
+--ro query-count? yang:counter64
+--ro report-v1-count? yang:counter64
+--ro report-v2-count? yang:counter64
+--ro done-count? yang:counter64
+--ro pim-hello-count? yang:counter64
3.3. Using IGMP and MLD Snooping Instances
The igmp-snooping-instance could be used in the service of BRIDGE
[dot1Qcp] or L2VPN [draft-ietf-bess-l2vpn-yang] to configure the IGMP
Snooping.
For the BRIDGE service this model augments /dot1q:bridges/dot1q:bridge
to use igmp-snooping-instance. It means IGMP Snooping is enabled in the
whole bridge.
It also augments /dot1q:bridges/dot1q:bridge/dot1q:component/
dot1q:bridge-vlan/dot1q:vlan to use igmp-snooping-instance. It means
IGMP Snooping is enabled in the specified VLAN on the bridge.
augment /dot1q:bridges/dot1q:bridge:
+--rw igmp-snooping-instance? igmp-mld-snooping-instance-ref
+--rw mld-snooping-instance? igmp-mld-snooping-instance-ref
augment /dot1q:bridges/dot1q:bridge/dot1q:component
/dot1q:bridge-vlan/dot1q:vlan:
+--rw igmp-snooping-instance? igmp-mld-snooping-instance-ref
+--rw mld-snooping-instance? igmp-mld-snooping-instance-ref
For the L2VPN service this model augments /ni:network-instances/
ni:network-instance/ni:ni-type/l2vpn:l2vpn [RFC8529] to use igmp-
snooping-instance. It means IGMP Snooping is enabled in the specified
l2vpn instance.
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augment /ni:network-instances/ni:network-instance/ni:ni-type
/l2vpn:l2vpn:
+--rw igmp-snooping-instance? igmp-mld-snooping-instance-ref
+--rw mld-snooping-instance? igmp-mld-snooping-instance-ref
The mld-snooping-instance could be used in concurrence with igmp-
snooping-instance to configure the MLD Snooping.
3.4. IGMP and MLD Snooping Actions
IGMP and MLD Snooping actions clear the specified IGMP and MLD Snooping
group tables. If both source X and group Y are specified, only source X
from group Y in that specific instance will be cleared.
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol:
+--rw igmp-snooping-instance {igmp-snooping}?
+---x clear-igmp-snooping-groups {action-clear-groups}?
+---w input
+---w group union
+---w source rt-types:ipv4-multicast-source-address
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol:
+--rw mld-snooping-instance {mld-snooping}?
+---x clear-mld-snooping-groups {action-clear-groups}?
+---w input
+---w group union
+---w source rt-types:ipv6-multicast-source-address
4. IGMP and MLD Snooping YANG Module
This module references [RFC1112],[RFC2236],[RFC2710],[RFC3376],
[RFC3810],[RFC4541],[RFC5790],[RFC6636],[RFC6991],[RFC7761],
[RFC8343],[RFC8529],[dot1Qcp], and [draft-ietf-bess-l2vpn-yang].
<CODE BEGINS> file ietf-igmp-mld-snooping@2020-08-07.yang
module ietf-igmp-mld-snooping {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-igmp-mld-snooping";
prefix ims;
import ietf-inet-types {
prefix "inet";
reference
"RFC 6991: Common YANG Data Types";
}
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import ietf-yang-types {
prefix "yang";
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-interfaces {
prefix "if";
reference
"RFC 8343: A YANG Data Model for Interface Management";
}
import ietf-routing {
prefix "rt";
reference
"RFC 8349: A YANG Data Model for Routing Management (NMDA
Version)";
}
import ietf-routing-types {
prefix "rt-types";
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-l2vpn {
prefix "l2vpn";
reference
"draft-ietf-bess-l2vpn-yang: YANG Data Model for MPLS-based
L2VPN";
}
import ietf-network-instance {
prefix "ni";
reference
"RFC 8529: YANG Data Model for Network Instances";
}
import ietf-pseudowires {
prefix "pw";
reference
"draft-ietf-bess-l2vpn-yang: YANG Data Model for MPLS-based
L2VPN";
}
import ieee802-dot1q-bridge {
prefix "dot1q";
reference
"dot1Qcp: IEEE 802.1Qcp-2018 Bridges and Bridged Networks
- Amendment: YANG Data Model";
}
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organization
"IETF PIM Working Group";
contact
"WG Web: <http://tools.ietf.org/wg/pim/>
WG List: <mailto:pim@ietf.org>
Editors: Hongji Zhao
<mailto:hongji.zhao@ericsson.com>
Xufeng Liu
<mailto:xufeng.liu.ietf@gmail.com>
Yisong Liu
<mailto:liuyisong@chinamobile.com>
Anish Peter
<mailto:anish.ietf@gmail.com>
Mahesh Sivakumar
<mailto:sivakumar.mahesh@gmail.com>
";
description
"The module defines a collection of YANG definitions common for
all devices that implement Internet Group Management Protocol
(IGMP) and Multicast Listener Discovery (MLD) Snooping which is
described in RFC 4541.
Copyright (c) 2020 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 Simplified BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(http://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 2020-08-07 {
description
"Initial revision.";
reference
"RFC XXXX: A YANG Data Model for IGMP and MLD Snooping";
}
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/*
* Features
*/
feature igmp-snooping {
description
"Support IGMP snooping.";
reference
"RFC 4541";
}
feature mld-snooping {
description
"Support MLD snooping.";
reference
"RFC 4541";
}
feature immediate-leave {
description
"Support configuration of fast leave. The fast leave feature
does not send last member query messages to hosts.";
reference
"RFC 3376";
}
feature static-l2-multicast-group {
description
"Support configuration of L2 multicast static-group.";
}
feature static-mrouter-interface {
description
"Support multicast router interface explicitly configured
by management";
reference
"RFC 4541";
}
feature action-clear-groups {
description
"Support clearing statistics by action for IGMP & MLD snooping.";
}
feature require-router-alert {
description
"Support configuration of require-router-alert.";
reference
"RFC 3376";
}
feature lite-exclude-filter {
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description
"Enable the support of the simplified EXCLUDE filter.";
reference
"RFC 5790";
}
feature explicit-tracking {
description
"Support configuration of per instance explicit-tracking.";
reference
"RFC 6636";
}
/* identities */
identity l2-service-type {
description
"Base identity for L2 service type in IGMP & MLD snooping";
}
identity bridge {
base l2-service-type;
description
"This identity represents BRIDGE service.";
}
identity l2vpn {
base l2-service-type;
description
"This identity represents L2VPN service.";
}
identity filter-mode {
description
"Base identity for filter mode in IGMP & MLD snooping";
}
identity include {
base filter-mode;
description
"This identity represents include mode.";
}
identity exclude {
base filter-mode;
description
"This identity represents exclude mode.";
}
identity igmp-snooping {
base rt:control-plane-protocol;
description
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"IGMP snooping";
}
identity mld-snooping {
base rt:control-plane-protocol;
description
"MLD snooping";
}
/*
* Typedefs
*/
typedef l2-service-type {
type identityref {
base "l2-service-type";
}
description "The L2 service type used with IGMP & MLD snooping ";
}
typedef filter-mode-type {
type identityref {
base "filter-mode";
}
description "The host filter mode";
}
typedef igmp-mld-snooping-instance-ref {
type leafref {
path "/rt:routing/rt:control-plane-protocols"+
"/rt:control-plane-protocol/rt:name";
}
description
"This type is used by data models which need to
reference IGMP & MLD snooping instance.";
}
/*
* Groupings
*/
grouping instance-config-attributes-igmp-mld-snooping {
description
"IGMP and MLD snooping configuration of each VLAN.";
leaf enable {
type boolean;
default false;
description
"Set the value to true to enable IGMP & MLD snooping.";
}
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leaf forwarding-table-type {
type enumeration {
enum "mac" {
description
"MAC-based lookup mode";
}
enum "ip" {
description
"IP-based lookup mode";
}
}
default "ip";
description "The default forwarding table type is ip";
}
leaf explicit-tracking {
if-feature explicit-tracking;
type boolean;
default false;
description
"Track the IGMPv3 and MLDv2 snooping membership reports
from individual hosts. It contributes to saving network
resources and shortening leave latency.";
}
leaf lite-exclude-filter {
if-feature lite-exclude-filter;
type empty;
description
"For IGMP Snooping, the presence of this
leaf enables the support of the simplified EXCLUDE filter
in the Lightweight IGMPv3 protocol, which simplifies the
standard versions of IGMPv3.
For MLD Snooping, the presence of this
leaf enables the support of the simplified EXCLUDE filter
in the Lightweight MLDv2 protocol, which simplifies the
standard versions of MLDv2.";
reference
"RFC 5790";
}
leaf send-query {
type boolean;
default false;
description
"Enable quick response for topology changes.
To support IGMP snooping in a VLAN where PIM and IGMP are
not configured. It cooperates with parameter querier-source.";
}
leaf immediate-leave {
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if-feature immediate-leave;
type empty;
description
"When immediate leave is enabled, the IGMP software assumes
that no more than one host is present on each VLAN port.";
}
leaf last-member-query-interval {
type uint16 {
range "10..10230";
}
units deciseconds;
default 10;
description
"Last Member Query Interval, which may be tuned to modify
the leave latency of the network.
It is represented in units of 1/10 second.";
reference "RFC 3376. Sec. 8.8.";
}
leaf query-interval {
type uint16;
units seconds;
default 125;
description
"The Query Interval is the interval between General Queries
sent by the Querier.";
reference "RFC 3376. Sec. 4.1.7, 8.2, 8.14.2.";
}
leaf query-max-response-time {
type uint16;
units deciseconds;
default 100;
description
"Query maximum response time specifies the maximum time
allowed before sending a responding report.
It is represented in units of 1/10 second.";
reference "RFC 3376. Sec. 4.1.1, 8.3, 8.14.3.";
}
leaf require-router-alert {
if-feature require-router-alert;
type boolean;
default false;
description
"When the value is true, router alert should exist
in the IP header of IGMP or MLD packet.";
}
leaf robustness-variable {
type uint8 {
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range "1..7";
}
default 2;
description
"Querier's Robustness Variable allows tuning for the
expected packet loss on a network.";
reference "RFC 3376. Sec. 4.1.6, 8.1, 8.14.1.";
}
leaf-list static-bridge-mrouter-interface {
when 'derived-from-or-self(../l2-service-type,"ims:bridge")';
if-feature static-mrouter-interface;
type if:interface-ref;
description "static mrouter interface in BRIDGE forwarding";
}
leaf-list static-l2vpn-mrouter-interface-ac {
when 'derived-from-or-self(../l2-service-type,"ims:l2vpn")';
if-feature static-mrouter-interface;
type if:interface-ref;
description
"static mrouter interface whose type is interface
in L2VPN forwarding";
}
leaf-list static-l2vpn-mrouter-interface-pw {
when 'derived-from-or-self(../l2-service-type,"ims:l2vpn")';
if-feature static-mrouter-interface;
type pw:pseudowire-ref;
description
"static mrouter interface whose type is PW
in L2VPN forwarding";
}
} // instance-config-attributes-igmp-mld-snooping
grouping instance-state-group-attributes-igmp-mld-snooping {
description
"Attributes for both IGMP and MLD snooping groups.";
leaf mac-address {
type yang:phys-address;
description "Destination MAC address for L2 multicast.";
}
leaf expire {
type rt-types:timer-value-seconds16;
units seconds;
description
"The time left before multicast group timeout.";
}
leaf up-time {
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type uint32;
units seconds;
mandatory true;
description
"The time elapsed since L2 multicast record created.";
}
} // instance-state-group-attributes-igmp-mld-snooping
grouping instance-state-attributes-igmp-mld-snooping {
description
"State attributes for IGMP & MLD snooping instance.";
leaf entries-count {
type yang:gauge32;
config false;
description
"The number of L2 multicast entries in IGMP & MLD snooping";
}
leaf-list bridge-mrouter-interface {
when 'derived-from-or-self(../l2-service-type,"ims:bridge")';
type if:interface-ref;
config false;
description
"Indicates a list of mrouter interfaces dynamicly learned in a
bridge. When this switch receives IGMP/MLD queries from a
multicast router on an interface, the interface will become
mrouter interface for IGMP/MLD snooping.";
}
leaf-list l2vpn-mrouter-interface-ac {
when 'derived-from-or-self(../l2-service-type,"ims:l2vpn")';
type if:interface-ref;
config false;
description
"The mrouter interface whose type is interface in L2VPN
forwarding. When switch receives IGMP/MLD queries from
multicast router on an interface, this interface will
become mrouter interface for IGMP/MLD snooping.";
}
leaf-list l2vpn-mrouter-interface-pw {
when 'derived-from-or-self(../l2-service-type,"ims:l2vpn")';
type pw:pseudowire-ref;
config false;
description
"The mrouter interface whose type is PW in L2VPN forwarding.
When switch receives IGMP/MLD queries from multicast router
on a PW, this PW will become mrouter interface for IGMP/MLD
snooping.";
}
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} // instance-config-attributes-igmp-mld-snooping
grouping instance-state-source-attributes-igmp-mld-snooping {
description
"State attributes for IGMP & MLD snooping instance.";
leaf-list bridge-outgoing-interface {
when 'derived-from-or-self(../../../l2-service-
type,"ims:bridge")';
type if:interface-ref;
description "Outgoing interface in BRIDGE forwarding";
}
leaf-list l2vpn-outgoing-ac {
when 'derived-from-or-self(../../../l2-service-type,"ims:l2vpn")';
type if:interface-ref;
description "Outgoing Attachment Circuit (AC) in L2VPN";
}
leaf-list l2vpn-outgoing-pw {
when 'derived-from-or-self(../../../l2-service-type,"ims:l2vpn")';
type pw:pseudowire-ref;
description "Outgoing Pseudo Wire (PW) in L2VPN";
}
leaf up-time {
type uint32;
units seconds;
mandatory true;
description
"The time elapsed since L2 multicast record created";
}
leaf expire {
type rt-types:timer-value-seconds16;
units seconds;
description
"The time left before multicast group timeout.";
}
leaf host-count {
if-feature explicit-tracking;
type yang:gauge32;
description
"The number of host addresses.";
}
} // instance-state-source-attributes-igmp-mld-snooping
grouping igmp-snooping-statistics {
description
"The statistics attributes for IGMP snooping.";
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leaf query-count {
type yang:counter64;
description
"The number of Membership Query messages.";
reference
"RFC 2236";
}
leaf membership-report-v1-count {
type yang:counter64;
description
"The number of Version 1 Membership Report messages.";
reference
"RFC 1112";
}
leaf membership-report-v2-count {
type yang:counter64;
description
"The number of Version 2 Membership Report messages.";
reference
"RFC 2236";
}
leaf membership-report-v3-count {
type yang:counter64;
description
"The number of Version 3 Membership Report messages.";
reference
"RFC 3376";
}
leaf leave-count {
type yang:counter64;
description
"The number of Leave Group messages.";
reference
"RFC 2236";
}
leaf pim-hello-count {
type yang:counter64;
description
"The number of PIM hello messages.";
reference
"RFC 7761";
}
} // igmp-snooping-statistics
grouping mld-snooping-statistics {
description
"The statistics attributes for MLD snooping.";
leaf query-count {
type yang:counter64;
description
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"The number of Multicast Listener Query messages.";
reference
"RFC 3810";
}
leaf report-v1-count {
type yang:counter64;
description
"The number of Version 1 Multicast Listener Report.";
reference
"RFC 2710";
}
leaf report-v2-count {
type yang:counter64;
description
"The number of Version 2 Multicast Listener Report.";
reference
"RFC 3810";
}
leaf done-count {
type yang:counter64;
description
"The number of Version 1 Multicast Listener Done.";
reference
"RFC 2710";
}
leaf pim-hello-count {
type yang:counter64;
description
"The number of PIM hello messages.";
reference
"RFC 7761";
}
} // mld-snooping-statistics
augment "/rt:routing/rt:control-plane-protocols"+
"/rt:control-plane-protocol" {
when 'derived-from-or-self(rt:type, "ims:igmp-snooping")' {
description
"This container is only valid for IGMP snooping.";
}
description
"IGMP snooping augmentation to control plane protocol
configuration and state.";
container igmp-snooping-instance {
if-feature igmp-snooping;
description
"IGMP snooping instance to configure igmp-snooping.";
leaf l2-service-type {
type l2-service-type;
default bridge;
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description
"The l2-service-type indicates BRIDGE or L2VPN.";
}
uses instance-config-attributes-igmp-mld-snooping;
leaf igmp-version {
type uint8 {
range "1..3";
}
default 2;
description "IGMP version.";
}
leaf querier-source {
type inet:ipv4-address;
description
"Use the IGMP snooping querier to support IGMP
snooping in a VLAN where PIM and IGMP are not configured.
The IPv4 address is used as source address in messages.";
}
list static-l2-multicast-group {
if-feature static-l2-multicast-group;
key "group source-addr";
description
"A static multicast route, (*,G) or (S,G).";
leaf group {
type rt-types:ipv4-multicast-group-address;
description
"Multicast group IPv4 address";
}
leaf source-addr {
type rt-types:ipv4-multicast-source-address;
description
"Multicast source IPv4 address.";
}
leaf-list bridge-outgoing-interface {
when 'derived-from-or-self(../../l2-service-
type,"ims:bridge")';
type if:interface-ref;
description "Outgoing interface in BRIDGE forwarding";
}
leaf-list l2vpn-outgoing-ac {
when 'derived-from-or-self(../../l2-service-
type,"ims:l2vpn")';
type if:interface-ref;
description "Outgoing Attachment Circuit (AC) in L2VPN";
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}
leaf-list l2vpn-outgoing-pw {
when 'derived-from-or-self(../../l2-service-
type,"ims:l2vpn")';
type pw:pseudowire-ref;
description "Outgoing Pseudo Wire (PW) in L2VPN";
}
} // static-l2-multicast-group
uses instance-state-attributes-igmp-mld-snooping;
list group {
key "address";
config false;
description "IGMP snooping information";
leaf address {
type rt-types:ipv4-multicast-group-address;
description
"Multicast group IPv4 address";
}
uses instance-state-group-attributes-igmp-mld-snooping;
leaf last-reporter {
type inet:ipv4-address;
description
"Address of the last host which has sent report to join
the multicast group.";
}
list source {
key "address";
description "Source IPv4 address for multicast stream";
leaf address {
type rt-types:ipv4-multicast-source-address;
description "Source IPv4 address for multicast stream";
}
uses instance-state-source-attributes-igmp-mld-snooping;
leaf last-reporter {
type inet:ipv4-address;
description
"Address of the last host which has sent report
to join the multicast group.";
}
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list host {
if-feature explicit-tracking;
key "host-address";
description
"List of multicast membership hosts
of the specific multicast source-group.";
leaf host-address {
type inet:ipv4-address;
description
"Multicast membership host address.";
}
leaf host-filter-mode {
type filter-mode-type;
mandatory true;
description
"Filter mode for a multicast membership
host may be either include or exclude.";
}
}// list host
} // list source
} // list group
container interfaces {
config false;
description
"Contains the interfaces associated with the IGMP snooping
instance";
list interface {
key "name";
description
"A list of interfaces associated with the IGMP snooping
instance";
leaf name {
type if:interface-ref;
description
"The name of interface";
}
container statistics {
description
"The interface statistics for IGMP snooping";
leaf discontinuity-time {
type yang:date-and-time;
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description
"The time on the most recent occasion at which any one
or more of the statistic counters suffered a
discontinuity. If no such discontinuities have
occurred since the last re-initialization of the local
management subsystem, then this node contains the time
the local management subsystem re-initialized
itself.";
}
container received {
description
"Number of received snooped IGMP packets";
uses igmp-snooping-statistics;
}
container sent {
description
"Number of sent snooped IGMP packets";
uses igmp-snooping-statistics;
}
}
}
}
action clear-igmp-snooping-groups {
if-feature action-clear-groups;
description
"Clear IGMP snooping cache tables.";
input {
leaf group {
type union {
type enumeration {
enum 'all-groups' {
description
"All multicast group addresses.";
}
}
type rt-types:ipv4-multicast-group-address;
}
mandatory true;
description
"Multicast group IPv4 address. If value 'all-groups' is
specified, all IGMP snooping group entries are cleared
for specified source address.";
}
leaf source {
type rt-types:ipv4-multicast-source-address;
mandatory true;
description
"Multicast source IPv4 address. If value '*' is specified,
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all IGMP snooping source-group tables are cleared.";
}
}
} // action clear-igmp-snooping-groups
} // igmp-snooping-instance
} // augment
augment "/rt:routing/rt:control-plane-protocols"+
"/rt:control-plane-protocol" {
when 'derived-from-or-self(rt:type, "ims:mld-snooping")' {
description
"This container is only valid for MLD snooping.";
}
description
"MLD snooping augmentation to control plane protocol
configuration and state.";
container mld-snooping-instance {
if-feature mld-snooping;
description
"MLD snooping instance to configure mld-snooping.";
leaf l2-service-type {
type l2-service-type;
default bridge;
description
"The l2-service-type indicates BRIDGE or L2VPN.";
}
uses instance-config-attributes-igmp-mld-snooping;
leaf mld-version {
type uint8 {
range "1..2";
}
default 2;
description "MLD version.";
}
leaf querier-source {
type inet:ipv6-address;
description
"Use the MLD snooping querier to support MLD snooping where
PIM and MLD are not configured. The IPv6 address is used as
the source address in messages.";
}
list static-l2-multicast-group {
if-feature static-l2-multicast-group;
key "group source-addr";
description
"A static multicast route, (*,G) or (S,G).";
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leaf group {
type rt-types:ipv6-multicast-group-address;
description
"Multicast group IPv6 address";
}
leaf source-addr {
type rt-types:ipv6-multicast-source-address;
description
"Multicast source IPv6 address.";
}
leaf-list bridge-outgoing-interface {
when 'derived-from-or-self(../../l2-service-
type,"ims:bridge")';
type if:interface-ref;
description "Outgoing interface in BRIDGE forwarding";
}
leaf-list l2vpn-outgoing-ac {
when 'derived-from-or-self(../../l2-service-
type,"ims:l2vpn")';
type if:interface-ref;
description "Outgoing Attachment Circuit (AC) in L2VPN";
}
leaf-list l2vpn-outgoing-pw {
when 'derived-from-or-self(../../l2-service-
type,"ims:l2vpn")';
type pw:pseudowire-ref;
description "Outgoing Pseudo Wire (PW) in L2VPN";
}
} // static-l2-multicast-group
uses instance-state-attributes-igmp-mld-snooping;
list group {
key "address";
config false;
description "MLD snooping statistics information";
leaf address {
type rt-types:ipv6-multicast-group-address;
description
"Multicast group IPv6 address";
}
uses instance-state-group-attributes-igmp-mld-snooping;
leaf last-reporter {
type inet:ipv6-address;
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description
"Address of the last host which has sent report
to join the multicast group.";
}
list source {
key "address";
description "Source IPv6 address for multicast stream";
leaf address {
type rt-types:ipv6-multicast-source-address;
description "Source IPv6 address for multicast stream";
}
uses instance-state-source-attributes-igmp-mld-snooping;
leaf last-reporter {
type inet:ipv6-address;
description
"Address of the last host which has sent report
to join the multicast group.";
}
list host {
if-feature explicit-tracking;
key "host-address";
description
"List of multicast membership hosts
of the specific multicast source-group.";
leaf host-address {
type inet:ipv6-address;
description
"Multicast membership host address.";
}
leaf host-filter-mode {
type filter-mode-type;
mandatory true;
description
"Filter mode for a multicast membership
host may be either include or exclude.";
}
}// list host
} // list source
} // list group
container interfaces {
config false;
description
"Contains the interfaces associated with the MLD snooping
instance";
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list interface {
key "name";
description
"A list of interfaces associated with the MLD snooping
instance";
leaf name {
type if:interface-ref;
description
"The name of interface";
}
container statistics {
description
"The interface statistics for MLD snooping";
leaf discontinuity-time {
type yang:date-and-time;
description
"The time on the most recent occasion at which any one
or more of the statistic counters suffered a
discontinuity. If no such discontinuities have
occurred since the last re-initialization of the local
management subsystem, then this node contains the time
the local management subsystem re-initialized
itself.";
}
container received {
description
"Number of received snooped MLD packets";
uses mld-snooping-statistics;
}
container sent {
description
"Number of sent snooped MLD packets";
uses mld-snooping-statistics;
}
}
}
}
action clear-mld-snooping-groups {
if-feature action-clear-groups;
description
"Clear MLD snooping cache tables.";
input {
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leaf group {
type union {
type enumeration {
enum 'all-groups' {
description
"All multicast group addresses.";
}
}
type rt-types:ipv6-multicast-group-address;
}
mandatory true;
description
"Multicast group IPv6 address. If value 'all-groups' is
specified, all MLD snooping group entries are cleared
for specified source address.";
}
leaf source {
type rt-types:ipv6-multicast-source-address;
mandatory true;
description
"Multicast source IPv6 address. If value '*' is specified,
all MLD snooping source-group tables are cleared.";
}
}
} // action clear-mld-snooping-groups
}// mld-snooping-instance
} // augment
augment "/dot1q:bridges/dot1q:bridge" {
description
"Use IGMP & MLD snooping instance in BRIDGE.";
leaf igmp-snooping-instance {
type igmp-mld-snooping-instance-ref;
description
"Configure IGMP snooping instance under bridge view";
}
leaf mld-snooping-instance {
type igmp-mld-snooping-instance-ref;
description
"Configure MLD snooping instance under bridge view";
}
}
augment "/dot1q:bridges/dot1q:bridge"+
"/dot1q:component/dot1q:bridge-vlan/dot1q:vlan" {
description
"Use IGMP & MLD snooping instance in certain VLAN of BRIDGE";
leaf igmp-snooping-instance {
type igmp-mld-snooping-instance-ref;
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description
"Configure IGMP snooping instance under VLAN view";
}
leaf mld-snooping-instance {
type igmp-mld-snooping-instance-ref;
description
"Configure MLD snooping instance under VLAN view";
}
}
augment "/ni:network-instances/ni:network-instance"+
"/ni:ni-type/l2vpn:l2vpn" {
description
"Use IGMP & MLD snooping instance in L2VPN.";
leaf igmp-snooping-instance {
type igmp-mld-snooping-instance-ref;
description
"Configure IGMP snooping instance in L2VPN.";
}
leaf mld-snooping-instance {
type igmp-mld-snooping-instance-ref;
description
"Configure MLD snooping instance in L2VPN.";
}
}
}
<CODE ENDS>
5. Security Considerations
The YANG module specified in this document defines a schema for data
that is designed to be accessed via network management protocols such as
NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer is the
secure transport layer, and the mandatory-to-implement secure transport
is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer is HTTPS, and
the mandatory-to-implement secure transport is TLS [RFC8446].
The Network Configuration Access Control Model (NACM) [RFC8341] provides
the means to restrict access for particular NETCONF or RESTCONF users to
a preconfigured subset of all available NETCONF or RESTCONF protocol
operations and content.
There are a number of data nodes defined in this YANG module that are
writable/creatable/deletable (i.e., config true, which is the default).
These data nodes may be considered sensitive or vulnerable in some
network environments. Write operations (e.g., edit-config) to these data
nodes without proper protection can have a negative effect on network
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operations. These are the subtrees and data nodes and their
sensitivity/vulnerability:
Under /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol:/
ims:igmp-snooping-instance
ims:mld-snooping-instance
The subtrees under /dot1q:bridges/dot1q:bridge
ims:igmp-snooping-instance
ims:mld-snooping-instance
The subtrees under /dot1q:bridges/dot1q:bridge/dot1q:component
/dot1q:bridge-vlan/dot1q:vlan
ims:igmp-snooping-instance
ims:mld-snooping-instance
Unauthorized access to any data node of these subtrees can adversely
affect the IGMP & MLD Snooping subsystem of both the local device and
the network. This may lead to network malfunctions, delivery of packets
to inappropriate destinations, and other problems.
Some of the readable data nodes in this 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:
Under /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol:/
ims:igmp-snooping-instance
ims:mld-snooping-instance
Unauthorized access to any data node of these subtrees can disclose the
operational state information of IGMP & MLD Snooping on this device. The
group/source/host information may expose multicast group memberships,
and transitively the associations between the user on the host and the
contents from the source which could be privately sensitive. Some of the
action operations in this YANG module may be considered sensitive or
vulnerable in some network environments. It is thus important to control
access to these operations. These are the operations and their
sensitivity/vulnerability:
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Under /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol:/
ims:igmp-snooping-instance/ims:clear-igmp-snooping-groups
ims:mld-snooping-instance/ims:clear-mld-snooping-groups
Some of the actions in this YANG module may be considered sensitive or
vulnerable in some network environments. The IGMP & MLD Snooping YANG
module supports the "clear-igmp-snooping-groups" and "clear-mld-
snooping-groups" actions. If unauthorized action is invoked, the IGMP
and MLD Snooping group tables will be cleared unexpectedly. Especially
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
RFC Ed.: In this section, replace all occurrences of 'XXXX' with the
actual RFC number (and remove this note).
6.1. XML Registry
This document registers the following namespace URIs in the IETF XML
registry [RFC3688]:
--------------------------------------------------------------------
URI: urn:ietf:params:xml:ns:yang:ietf-igmp-mld-snooping
Registrant Contact: The IETF.
XML: N/A, the requested URI is an XML namespace.
--------------------------------------------------------------------
6.2. YANG Module Names Registry
This document registers the following YANG modules in the YANG Module
Names registry [RFC7950]:
--------------------------------------------------------------------
name: ietf-igmp-mld-snooping
namespace: urn:ietf:params:xml:ns:yang:ietf-igmp-mld-snooping
prefix: ims
reference: RFC XXXX
--------------------------------------------------------------------
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7. References
7.1. Normative References
[dot1Qcp] IEEE, "Standard for Local and metropolitan area networks--
Bridges and Bridged Networks--Amendment 30: YANG Data
Model", IEEE Std 802.1Qcp-2018 (Revision of IEEE Std
802.1Q-2014), September 2018,
<https://ieeexplore.ieee.org/servlet/opac?punumber=8467505>
[RFC1112] Deering, S., "Host extensions for IP multicasting", STD 5,
RFC 1112, August 1989.
[RFC2236] W. Fenner, "Internet Group Management Protocol, Version 2",
RFC 2236, November 1997.
[RFC2710] Deering, S., Fenner, W., and B. Haberman, "Multicast
Listener Discovery (MLD) for IPv6", RFC 2710, October 1999.
[RFC3376] Cain, B., Deering, S., Kouvelas, I., Fenner, B., and A.
Thyagarajan, "Internet Group Management Protocol, Version
3", RFC 3376, October 2002.
[RFC3688] Mealling, M., "The IETF XML Registry", RFC 3688, January
2004.
[RFC3810] Vida, R. and L. Costa, "Multicast Listener Discovery
Version 2 (MLDv2) for IPv6", RFC 3810, June 2004.
[RFC4286] B. Haberman and J. Martin, "Multicast Router Discovery",
RFC 4286, December 2005.
[RFC4541] M. Christensen, K. Kimball, F. Solensky, "Considerations
for Internet Group Management Protocol (IGMP) and Multicast
Listener Discovery (MLD) Snooping Switches", RFC 4541, May
2006.
[RFC5790] H. Liu, W. Cao, H. Asaeda, "Lightweight Internet Group
Management Protocol Version 3 (IGMPv3) and Multicast
Listener Discovery Version 2 (MLDv2) Protocols", RFC 5790,
February 2010.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
October 2010.
[RFC6241] R. Enns, Ed., M. Bjorklund, Ed., J. Schoenwaelder, Ed., A.
Bierman, Ed., "Network Configuration Protocol (NETCONF)",
RFC 6241, June 2011.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, June 2011.
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[RFC6636] H. Asaeda, H. Liu, Q. Wu, "Tuning the Behavior of the
Internet Group Management Protocol (IGMP) and Multicast
Listener Discovery (MLD) for Routers in Mobile and Wireless
Networks", RFC 6636, May 2012.
[RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991,
July 2013.
[RFC7761] B. Fenner, M. Handley, H. Holbrook, I. Kouvelas, R. Parekh,
Z. Zhang, L. Zheng, "Protocol Independent Multicast -
Sparse Mode (PIM-SM): Protocol Specification (Revised)",
RFC 7761, March 2016.
[RFC7950] M. Bjorklund, Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, August 2016.
[RFC8040] A. Bierman, M. Bjorklund, K. Watsen, "RESTCONF Protocol",
RFC 8040, January 2017.
[RFC8294] X. Liu, Y. Qu, A. Lindem, C. Hopps, L. Berger, "Common YANG
Data Types for the Routing Area", RFC 8294, December 2017.
[RFC8340] M. Bjorklund, and L. Berger, Ed., "YANG Tree Diagrams", RFC
8340, March 2018.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access
Control Model", RFC 8341, March 2018.
[RFC8342] M. Bjorklund and J. Schoenwaelder, "Network Management
Datastore Architecture (NMDA)", RFC 8342, March 2018.
[RFC8343] M. Bjorklund, "A YANG Data Model for Interface Management",
RFC 8343, March 2018.
[RFC8349] L. Lhotka, A. Lindem, Y. Qu, "A YANG Data Model for Routing
Management (NMDA Version)", RFC 8349, March 2018.
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, August 2018.
[RFC8529] L. Berger, C. Hopps, A. Lindem, D. Bogdanovic, X. Liu,
"YANG Data Model for Network Instances", RFC 8529, March
2019.
[draft-ietf-bess-l2vpn-yang] Shah, H., Brissette, P., Chen, I.,
Hussain, I., Wen, B., and K. Tiruveedhula, "YANG Data Model
for MPLS-basedL2VPN", draft-ietf-bess-l2vpn-yang-10 (work
in progress), July 2019.
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7.2. Informative References
[RFC3916] X. Xiao, Ed., D. McPherson, Ed., P. Pate, Ed.,
"Requirements for Pseudo-Wire Emulation Edge-to-Edge
(PWE3)", RFC 3916, September 2004.
[RFC7951] L. Lhotka, "JSON Encoding of Data Modeled with YANG", RFC
7951, August 2016.
[RFC8407] A. Bierman, "Guidelines for Authors and Reviewers of
Documents Containing YANG Data Models", RFC 8407, October
2018.
[RFC8652] X. Liu, F. Guo, M. Sivakumar, P. McAllister, A. Peter, "A
YANG Data Model for the Internet Group Management Protocol
(IGMP) and Multicast Listener Discovery (MLD)", RFC 8652,
November 2019.
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Appendix A. Data Tree Example
A.1 Bridge service
This section contains an example for bridge service in the JSON encoding
[RFC7951], containing both configuration and state data.
+-----------+
+ Source +
+-----+-----+
|
-----------------+----------------------------
|eth1/1
+---+---+
+ R1 +
+-+---+-+
eth1/2 | \ eth1/3
| \
| \
| \
| \
eth2/1 | \ eth3/1
+---+---+ +--+---+
+ R2 + + R3 +
+---+---+ +--+---+
eth2/2 | | eth3/2
| |
---------------+----------+-------------------
| |
| |
+--------+--+ +---+--------+
+ Receiver1 + + Receiver2 +
+-----------+ +------------+
The configuration data for R1 in the above figure could be as follows:
{
"ietf-interfaces:interfaces":{
"interface":[
{
"name":"eth1/1",
"type":"iana-if-type:ethernetCsmacd"
}
]
},
"ietf-routing:routing":{
"control-plane-protocols":{
"control-plane-protocol":[
{
"type":"ietf-igmp-mld-snooping:igmp-snooping",
"name":"bis1",
"ietf-igmp-mld-snooping:igmp-snooping-instance":{
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"l2-service-type":"ietf-igmp-mld-snooping:bridge",
"enable":true
}
}
]
}
},
"ieee802-dot1q-bridge:bridges":{
"bridge":[
{
"name":"isp1",
"address":"00-23-ef-a5-77-12",
"bridge-type":"ieee802-dot1q-bridge:customer-vlan-bridge",
"component":[
{
"name":"comp1",
"type":"ieee802-dot1q-bridge:c-vlan-component",
"bridge-vlan":{
"vlan":[
{
"vid":101,
"ietf-igmp-mld-snooping:igmp-snooping-instance":"bis1"
}
]
}
}
]
}
]
}
}
The corresponding operational state data for R1 could be as follows:
{
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth1/1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2018-05-23T12:34:56-05:00"
}
}
]
},
"ietf-routing:routing": {
"control-plane-protocols": {
"control-plane-protocol": [
{
"type": "ietf-igmp-mld-snooping:igmp-snooping",
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"name": "bis1",
"ietf-igmp-mld-snooping:igmp-snooping-instance": {
"l2-service-type": "ietf-igmp-mld-snooping:bridge",
"enable": true
}
}
]
}
},
"ieee802-dot1q-bridge:bridges": {
"bridge": [
{
"name": "isp1",
"address": "00-23-ef-a5-77-12",
"bridge-type": "ieee802-dot1q-bridge:customer-vlan-bridge",
"component": [
{
"name": "comp1",
"type": "ieee802-dot1q-bridge:c-vlan-component",
"bridge-vlan": {
"vlan": [
{
"vid": 101,
"ietf-igmp-mld-snooping:igmp-snooping-instance": "bis1"
}
]
}
}
]
}
]
}
}
The following action is to clear all the entries whose group address is
225.1.1.1 for igmp-snooping-instance bis1.
POST /restconf/operations/ietf-routing:routing/control-plane-protocols/\
control-plane-protocol=ietf-igmp-mld-snooping:igmp-snooping,bis1/\
ietf-igmp-mld-snooping:igmp-snooping-instance/\
clear-igmp-snooping-groups HTTP/1.1
Host: example.com
Content-Type: application/yang-data+json
{
"ietf-igmp-mld-snooping:input" : {
"group": "225.1.1.1",
"source": "*"
}
}
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A.2 L2VPN service
This section contains an example for L2VPN service in the JSON encoding
[RFC7951], containing both configuration and state data.
+-----------+
+ Source +
+-----+-----+
|
-----------------+----------------------------
|eth1/1
+---+---+
+ R1 +
+-+---+-+
eth1/2 | \ eth1/3
| \
| \
| \
| \
eth2/1 | \ eth3/1
+---+---+ +-+---+
+ R2 +----+ R3 +
+---+---+ +-+---+
eth2/2 | | eth3/2
| |
---------------+----------+-------------------
| |
| |
+--------+--+ +---+--------+
+ Receiver1 + + Receiver2 +
+-----------+ +------------+
The configuration data for R1 in the above figure could be as follows:
{
"ietf-interfaces:interfaces":{
"interface":[
{
"name":"eth1/1",
"type":"iana-if-type:ethernetCsmacd"
}
]
},
"ietf-pseudowires:pseudowires": {
"pseudowire": [
{
"name": "pw2"
},
{
"name": "pw3"
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}
]
},
"ietf-network-instance:network-instances": {
"network-instance": [
{
"name": "vpls1",
"ietf-igmp-mld-snooping:igmp-snooping-instance": "vis1",
"ietf-l2vpn:type": "ietf-l2vpn:vpls-instance-type",
"ietf-l2vpn:signaling-type": "ietf-l2vpn:ldp-signaling",
"ietf-l2vpn:endpoint": [
{
"name": "acs",
"ac": [
{
"name": "eth1/1"
}
]
},
{
"name": "pws",
"pw": [
{
"name": "pw2"
},
{
"name": "pw3"
}
]
}
]
}
]
},
"ietf-routing:routing": {
"control-plane-protocols": {
"control-plane-protocol": [
{
"type": "ietf-igmp-mld-snooping:igmp-snooping",
"name": "vis1",
"ietf-igmp-mld-snooping:igmp-snooping-instance": {
"l2-service-type": "ietf-igmp-mld-snooping:l2vpn",
"enable": true
}
}
]
}
}
}
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The corresponding operational state data for R1 could be as follows:
{
"ietf-interfaces:interfaces":{
"interface":[
{
"name":"eth1/1",
"type":"iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2018-05-23T12:34:56-05:00"
}
}
]
},
"ietf-pseudowires:pseudowires": {
"pseudowire": [
{
"name": "pw2"
},
{
"name": "pw3"
}
]
},
"ietf-network-instance:network-instances": {
"network-instance": [
{
"name": "vpls1",
"ietf-igmp-mld-snooping:igmp-snooping-instance": "vis1",
"ietf-l2vpn:type": "ietf-l2vpn:vpls-instance-type",
"ietf-l2vpn:signaling-type": "ietf-l2vpn:ldp-signaling",
"ietf-l2vpn:endpoint": [
{
"name": "acs",
"ac": [
{
"name": "eth1/1"
}
]
},
{
"name": "pws",
"pw": [
{
"name": "pw2"
},
{
"name": "pw3"
}
]
}
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]
}
]
},
"ietf-routing:routing": {
"control-plane-protocols": {
"control-plane-protocol": [
{
"type": "ietf-igmp-mld-snooping:igmp-snooping",
"name": "vis1",
"ietf-igmp-mld-snooping:igmp-snooping-instance": {
"l2-service-type": "ietf-igmp-mld-snooping:l2vpn",
"enable": true
}
}
]
}
}
}
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Authors' Addresses
Hongji Zhao
Ericsson (China) Communications Company Ltd.
Ericsson Tower, No. 5 Lize East Street,
Chaoyang District Beijing 100102, P.R. China
Email: hongji.zhao@ericsson.com
Xufeng Liu
Volta Networks
USA
EMail: xufeng.liu.ietf@gmail.com
Yisong Liu
China Mobile
China
Email: liuyisong@chinamobile.com
Anish Peter
Individual
EMail: anish.ietf@gmail.com
Mahesh Sivakumar
Juniper Networks
1133 Innovation Way
Sunnyvale, California
USA
EMail: sivakumar.mahesh@gmail.com
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