Signal-Free Locator/ID Separation Protocol (LISP) Multicast
RFC 8378
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Type |
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RFC - Experimental
(May 2018; No errata)
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Last updated |
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2018-05-02
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Replaces |
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draft-farinacci-lisp-signal-free-multicast
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Luigi Iannone
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Shepherd write-up |
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Show
(last changed 2017-12-15)
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| IESG |
IESG state |
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RFC 8378 (Experimental)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Deborah Brungard
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Send notices to |
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ggx@gigix.net
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| IANA |
IANA review state |
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IANA OK - No Actions Needed
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IANA action state |
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No IANA Actions
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Internet Engineering Task Force (IETF) V. Moreno
Request for Comments: 8378 Cisco Systems
Category: Experimental D. Farinacci
ISSN: 2070-1721 lispers.net
May 2018
Signal-Free Locator/ID Separation Protocol (LISP) Multicast
Abstract
When multicast sources and receivers are active at Locator/ID
Separation Protocol (LISP) sites, the core network is required to use
native multicast so packets can be delivered from sources to group
members. When multicast is not available to connect the multicast
sites together, a signal-free mechanism can be used to allow traffic
to flow between sites. The mechanism described in this document uses
unicast replication and encapsulation over the core network for the
data plane and uses the LISP mapping database system so encapsulators
at the source LISP multicast site can find decapsulators at the
receiver LISP multicast sites.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Engineering
Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been approved for
publication by the Internet Engineering Steering Group (IESG). Not
all documents approved by the IESG are candidates for any level of
Internet Standard; see Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8378.
Moreno & Farinacci Experimental [Page 1]
RFC 8378 Signal-Free LISP Multicast May 2018
Copyright Notice
Copyright (c) 2018 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. 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 Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Definition of Terms . . . . . . . . . . . . . . . . . . . . . 4
3. Requirements Language . . . . . . . . . . . . . . . . . . . . 5
4. Reference Model . . . . . . . . . . . . . . . . . . . . . . . 6
5. General Procedures . . . . . . . . . . . . . . . . . . . . . 7
5.1. General Receiver-Site Procedures . . . . . . . . . . . . 8
5.1.1. Multicast Receiver Detection . . . . . . . . . . . . 8
5.1.2. Receiver-Site Registration . . . . . . . . . . . . . 9
5.1.3. Consolidation of the Replication List . . . . . . . . 10
5.2. General Source-Site Procedures . . . . . . . . . . . . . 10
5.2.1. Multicast Tree Building at the Source Site . . . . . 10
5.2.2. Multicast Destination Resolution . . . . . . . . . . 11
5.3. General LISP Notification Procedures . . . . . . . . . . 11
6. Source-Specific Multicast Trees . . . . . . . . . . . . . . . 12
6.1. Source Directly Connected to Source-ITRs . . . . . . . . 12
6.2. Source Not Directly Connected to Source-ITRs . . . . . . 12
7. Multihoming Considerations . . . . . . . . . . . . . . . . . 13
7.1. Multiple ITRs at a Source Site . . . . . . . . . . . . . 13
7.2. Multiple ETRs at a Receiver Site . . . . . . . . . . . . 13
7.3. Multiple RLOCs for an ETR at a Receiver Site . . . . . . 14
7.4. Multicast RLOCs for an ETR at a Receiver Site . . . . . . 14
8. PIM Any-Source Multicast Trees . . . . . . . . . . . . . . . 15
9. Signal-Free Multicast for Replication Engineering . . . . . . 16
10. Security Considerations . . . . . . . . . . . . . . . . . . . 18
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
12.1. Normative References . . . . . . . . . . . . . . . . . . 19
12.2. Informative References . . . . . . . . . . . . . . . . . 20
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 21
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 21
Moreno & Farinacci Experimental [Page 2]
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