Operations, Administration, and Maintenance for MPLS-SR over IP
draft-mirsky-mpls-oam-mpls-sr-ip-03
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2019-10-22
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MPLS Working Group G. Mirsky
Internet-Draft ZTE Corp.
Intended status: Standards Track October 22, 2019
Expires: April 24, 2020
Operations, Administration, and Maintenance for MPLS-SR over IP
draft-mirsky-mpls-oam-mpls-sr-ip-03
Abstract
Segment routing uses source routing paradigm to traffic engineering
by specifying segments a packet traverses through the network. MPLS
Segment Routing applies that paradigm to an MPLS data plane-based
networks. SR-MPLS over IP uses MPLS label stack as a source routing
instruction set and uses IP encapsulation/tunneling such as MPLS-in-
UDP as defined in RFC 7510 to realize a source routing mechanism
across MPLS, IPv4, and IPv6 data planes. This document describes
Operations, Administration, and Maintenance operations in SR-MPLS
over IP environment.
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 April 24, 2020.
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
Mirsky Expires April 24, 2020 [Page 1]
Internet-Draft OAM for MPLS-SR over IP October 2019
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 . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions used in this document . . . . . . . . . . . . . . 2
2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 2
2.2. Requirements Language . . . . . . . . . . . . . . . . . . 3
3. OAM in SR-MPLS over IP . . . . . . . . . . . . . . . . . . . 3
3.1. Fault Management OAM in SR-MPLS over IP . . . . . . . . . 3
3.2. Performance Monitoring OAM in SR-MPLS over IP . . . . . . 4
4. Security Considerations . . . . . . . . . . . . . . . . . . . 4
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
5.1. Source MEP ID IP Address Type . . . . . . . . . . . . . . 4
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4
7. Normative References . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
Segment routing [RFC8402] uses source routing paradigm to traffic
engineering by specifying segments a packet traverses through the
network. MPLS Segment Routing (SR-MPLS)
[I-D.ietf-spring-segment-routing-mpls] applies that paradigm to an
MPLS data plane-based networks. SR-MPLS over IP uses MPLS label
stack as a source routing instruction set and uses IP encapsulation/
tunneling such as MPLS-in-UDP as defined in [RFC7510] to realize a
source routing mechanism across MPLS, IPv4, and IPv6 data planes.
This document describes Operations, Administration, and Maintenance
(OAM) operations in SR-MPLS over IP environment.
2. Conventions used in this document
2.1. Terminology
MPLS: Multiprotocol Label Switching
LSP: Label Switched Path
BFD: Bidirectional Forwarding Detection
SR Segment Routing
SR-MPLS Segment Routing in MPLS data plane
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FEC: Forwarding Equivalence Class
G-ACh: Generic Associated Channel
ACH: Associated Channel Header
GAL: G-ACh Label
OAM Operations, Administration, and Maintenance
2.2. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
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