ForCES Inter-FE LFB
draft-ietf-forces-interfelfb-02
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Internet Engineering Task Force D. Joachimpillai
Internet-Draft Verizon
Intended status: Standards Track J. Hadi Salim
Expires: May 5, 2016 Mojatatu Networks
November 2, 2015
ForCES Inter-FE LFB
draft-ietf-forces-interfelfb-02
Abstract
This document describes how to extend the ForCES LFB topology across
FEs by defining the Inter-FE LFB Class. The Inter-FE LFB Class
provides the ability to pass data and metadata across FEs without
needing any changes to the ForCES specification. The document
focuses on Ethernet transport.
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 http://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 May 5, 2016.
Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the
document authors. All rights reserved.
Joachimpillai & Hadi Salim Expires May 5, 2016 [Page 1]
Internet-Draft ForCES Inter-FE LFB November 2015
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://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
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Table of Contents
1. Terminology and Conventions . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Definitions . . . . . . . . . . . . . . . . . . . . . . . 3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Problem Scope And Use Cases . . . . . . . . . . . . . . . . . 4
3.1. Assumptions . . . . . . . . . . . . . . . . . . . . . . . 4
3.2. Sample Use Cases . . . . . . . . . . . . . . . . . . . . 4
3.2.1. Basic IPv4 Router . . . . . . . . . . . . . . . . . . 4
3.2.1.1. Distributing The Basic IPv4 Router . . . . . . . 6
3.2.2. Arbitrary Network Function . . . . . . . . . . . . . 7
3.2.2.1. Distributing The Arbitrary Network Function . . . 7
4. Inter-FE LFB Overview . . . . . . . . . . . . . . . . . . . . 8
4.1. Inserting The Inter-FE LFB . . . . . . . . . . . . . . . 8
5. Inter-FE Ethernet Connectivity . . . . . . . . . . . . . . . 10
5.1. Inter-FE Ethernet Connectivity Issues . . . . . . . . . . 10
5.1.1. MTU Consideration . . . . . . . . . . . . . . . . . . 10
5.1.2. Quality Of Service Considerations . . . . . . . . . . 11
5.1.3. Congestion Considerations . . . . . . . . . . . . . . 11
5.1.4. Deployment Considerations . . . . . . . . . . . . . . 11
5.2. Inter-FE Ethernet Encapsulation . . . . . . . . . . . . . 12
6. Detailed Description of the Ethernet inter-FE LFB . . . . . . 13
6.1. Data Handling . . . . . . . . . . . . . . . . . . . . . . 13
6.1.1. Egress Processing . . . . . . . . . . . . . . . . . . 14
6.1.2. Ingress Processing . . . . . . . . . . . . . . . . . 15
6.2. Components . . . . . . . . . . . . . . . . . . . . . . . 16
6.3. Inter-FE LFB XML Model . . . . . . . . . . . . . . . . . 16
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 21
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 21
9. IEEE Assignment Considerations . . . . . . . . . . . . . . . 21
10. Security Considerations . . . . . . . . . . . . . . . . . . . 21
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 22
11.1. Normative References . . . . . . . . . . . . . . . . . . 22
11.2. Informative References . . . . . . . . . . . . . . . . . 23
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 24
Joachimpillai & Hadi Salim Expires May 5, 2016 [Page 2]
Internet-Draft ForCES Inter-FE LFB November 2015
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