rfc9798v3.txt   rfc9798.txt 
Internet Engineering Task Force (IETF) V. Govindan Internet Engineering Task Force (IETF) V. Govindan
Request for Comments: 9798 Cisco Request for Comments: 9798 S. Venaas
Updates: 8059 S. Venaas Updates: 8059 Cisco Systems, Inc.
Category: Experimental Cisco Systems, Inc. Category: Experimental June 2025
ISSN: 2070-1721 June 2025 ISSN: 2070-1721
PIM Join/Prune Attributes for Locator/ID Separation Protocol (LISP) PIM Join/Prune Attributes for Locator/ID Separation Protocol (LISP)
Environments Using Underlay Multicast Environments Using Underlay Multicast
Abstract Abstract
This document specifies an update to the Receiver RLOC (Routing This document specifies an update to the Receiver RLOC (Routing
Locator) field of the PIM Join/Prune attribute that supports the Locator) field of the PIM Join/Prune attribute that supports the
construction of multicast distribution trees where the source and construction of multicast distribution trees where the source and
receivers are located in different Locator/ID Separation Protocol receivers are located in different Locator/ID Separation Protocol
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Hardware resource restrictions: Hardware resource restrictions:
Platform limitations may necessitate engineering decisions to Platform limitations may necessitate engineering decisions to
restrict multicast address ranges in the underlay due to hardware restrict multicast address ranges in the underlay due to hardware
resource constraints. resource constraints.
3. Updates to RFC 8059 3. Updates to RFC 8059
3.1. Scope 3.1. Scope
No changes are proposed to the syntax or semantics of the Transport There are no changes to the syntax or semantics of the Transport
Attribute defined in [RFC8059]. Attribute defined in [RFC8059].
The scope of the updates to [RFC8059] is limited to the case where The scope of the updates to [RFC8059] is limited to the case where
the "Transport" field of the Transport Attribute is set to zero the "Transport" field of the Transport Attribute is set to zero
(multicast) only. (multicast) only.
3.2. Receiver ETR RLOC Attribute 3.2. Receiver ETR RLOC Attribute
The definition of the "Receiver RLOC" field of the Receiver ETR RLOC The definition of the "Receiver RLOC" field of the Receiver ETR RLOC
attribute (see Section 5.1 of [RFC8059]) is updated as follows: attribute (see Section 5.1 of [RFC8059]) is updated as follows:
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The authors would like to thank Dino Farinacci, Victor Moreno, Alvaro The authors would like to thank Dino Farinacci, Victor Moreno, Alvaro
Retana, Aswin Kuppusami, Joe Clarke, and Peter Yee for their valuable Retana, Aswin Kuppusami, Joe Clarke, and Peter Yee for their valuable
comments. The authors also thank Sankaralingam T and Amit Kumar for comments. The authors also thank Sankaralingam T and Amit Kumar for
their contributions to the document. The authors thank Gunter Van de their contributions to the document. The authors thank Gunter Van de
Velde for his valuable comments. Velde for his valuable comments.
Authors' Addresses Authors' Addresses
Vengada Prasad Govindan Vengada Prasad Govindan
Cisco Cisco Systems, Inc.
Email: venggovi@cisco.com Email: venggovi@cisco.com
Stig Venaas Stig Venaas
Cisco Systems, Inc. Cisco Systems, Inc.
Tasman Drive Tasman Drive
San Jose, CA 95134 San Jose, CA 95134
United States of America United States of America
Email: svenaas@cisco.com Email: stig@cisco.com
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