Protocol independent multicast- Next Generation (PIM-NG): Protocol Specifications
draft-sami-pim-ng-04
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PIM working group S. Sami
Internet Draft
Intended status: Proposed standard June 9, 2014
Expires: December 2014
Protocol independent multicast- Next Generation (PIM-NG):
Protocol Specifications
draft-sami-pim-ng-04.txt
Status of this Memo
This Internet-Draft is submitted in full conformance with the
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Sami Expires December 9, 2014 [Page 1]
Internet-Draft PIM-NG June 2014
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.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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Abstract
This document specifies protocol independent multicast- Next
generation or simply called PIM-NG. like PIM-SM, PIM-NG uses the
underlying unicast routing information, but unlike PIM-SM it doesn't
necessarily need to build unidirectional shared trees rooted at a
Rendezvous Point (RP) per group, due to the fact that the processes
through which a source registers with the Rendezvous Point and a host
finds the source of the multicast destination groups it needs are
done in a whole new way. So at some points PIM-NG works faster than
its predecessor. Also the new Domain concept, unique to PIM-NG, along
the RPF check method used in PIM-NG specifications provides many
features along a robust and flexible control and administration over
multicast networks.
Sami Expires December 9, 2014 [Page 2]
Internet-Draft PIM-NG June 2014
Table of Contents
1. Introduction...................................................5
2. Terminology....................................................5
2.1. Definitions...............................................5
3. IP Address considerations......................................9
4. PIM-NG processes..............................................10
4.1. New packet Header........................................10
4.2. Source Discovery.........................................11
4.2.1. Source register process with RP.....................12
4.2.2. Communication between client and the source.........16
4.2.3. Source specific multicast...........................26
4.2.4. Source Discovery Delay Prevention...................28
4.2.4.1. Delay prevention in Default-Mode...............29
4.2.4.2. Delay prevention in Admin-Mode.................31
4.3. Communication between PIM-NG routers.....................34
4.4. RP discovery.............................................39
4.4.1. Static RP discovery.................................40
4.4.2. Dynamic RP discovery................................41
4.4.2.1. Multicast IP addresses used....................42
4.4.2.2. Dynamic RP discovery TYPE-1....................42
4.4.2.2.1. RP introduction process...................44
4.4.2.2.2. Back up C-RP considerations...............46
4.4.2.2.3. PIM-NG clients processes in Dynamic-RP....53
4.4.2.2.3.1. New PIM-NG router/client.............55
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