BIER Prefix Redistribute
draft-zwzw-bier-prefix-redistribute-03
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2019-09-23
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BIER Zheng. Zhang
Internet-Draft ZTE Corporation
Intended status: Standards Track Bo. Wu
Expires: March 26, 2020 Individual
Zhaohui. Zhang
Juniper Networks
IJsbrand. Wijnands
Cisco Systems, Inc.
September 23, 2019
BIER Prefix Redistribute
draft-zwzw-bier-prefix-redistribute-03
Abstract
This document defines a BIER proxy function to interconnect different
underlay routing protocol areas in a network. And a new BIER proxy
range sub-TLV is also defined to convey BIER BFR-id information
across the routing areas.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC2119.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 26, 2020.
Zhang, et al. Expires March 26, 2020 [Page 1]
Internet-Draft BIER Prefix Redistribute September 2019
Copyright Notice
Copyright (c) 2019 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. Problem statement . . . . . . . . . . . . . . . . . . . . . . 2
2. Proposal . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Advertisement . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. BIER proxy range sub-TLV . . . . . . . . . . . . . . . . 6
4. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 8
8. Normative References . . . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 9
1. Problem statement
Zhang, et al. Expires March 26, 2020 [Page 2]
Internet-Draft BIER Prefix Redistribute September 2019
+-------------------------------------------------------+
| +----+ +----+ PIM |
| +----+ R1 +-------------+ R2 +-----+ |
| | +----+ +----+ | |
| | | |
| | OSPF area 0 / ISIS | |
| | | |
| | +----+ +----+ | |
| +-----+ +------------+ +-----+ |
| +------------+ R3 +---+ +---+ R4 +------------+ |
| | +----+ | | +----+ | |
| | | | | |
| | OSPF area 1 | | OSPF area 2 | |
| | | | | |
| | +----+ +----+ | | +----+ +----+ | |
| +--+ Rm +-----+ Rn +--+ +---+ Rx +----+ Ry +--+ |
| +----+ +----+ +----+ +----+ |
+-------------------------------------------------------+
Figure 1
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