ISO/IEC/IEEE 8802-1AB:2014

Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Part 1AB: Station and media access control connectivity discovery

ISO/IEC/IEEE 8802-1AB:2014 defines a protocol and a set of managed objects that can be used for discovering the physical topology from adjacent stations in ISO/IEC/IEEE 8802 local area networks.

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseaux locaux et métropolitains — Partie 1AB: Découverte de connectivité des stations et du contrôle d'accès aux supports

General Information

• Status: Withdrawn
• Publication Date: 06-Feb-2014
• Withdrawal Date: 06-Feb-2014
• ICS: 35.110 - Networking
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 07-Aug-2017

Relations

• Revised: ISO/IEC/IEEE 8802-1AB:2017 - Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 1AB: Station and media access control connectivity discovery
• Effective Date: 23-Jul-2016

Standards Content (Sample)

INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-1AB
First edition
2014-02-15


Information technology —
Telecommunications and information
exchange between systems — Local and
metropolitan area networks —
Part 1AB:
Station and Media Access Control
Connectivity Discovery
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseaux locaux et métropolitains —
Partie 1AB: Découverte de connectivité des stations et du contrôle
d'accès aux supports





Reference number
ISO/IEC/IEEE 8802-1AB:2014(E)

©
IEEE 2009

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ISO/IEC/IEEE 8802-1AB:2014(E)

©  IEEE 2009
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ISO/IEC/IEEE 8802-1AB:2014(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
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Association.
ISO/IEC/IEEE 8802-1AB was prepared by the LAN/MAN Standards Committee of the IEEE Computer Society
(as IEEE Std 802.1AB-2009). It was adopted by Joint Technical Committee ISO/IEC JTC 1, Information
technology, Subcommittee SC 6, Telecommunications and information exchange between systems, in parallel
with its approval by the ISO/IEC national bodies, under the “fast-track procedure” defined in the Partner
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ISO/IEC/IEEE 8802 consists of the following parts, under the general title Information technology —
Telecommunications and information exchange between systems — Local and metropolitan area networks:
— Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications
— Part 1X: Port-based network access control
— Part 1AB: Station and media access control connectivity discovery
— Part 1AE: Media access control (MAC) security
— Part 1AR: Secure device identity
— Part 1AS: Timing and synchronization for time-sensitive applications in bridged local area networks
© IEEE 2009 – All rights reserved iii

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ISO/IEC/IEEE 8802-1AB:2014(E)
— Part 15-4: Wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate
wireless personal area networks (WPANs)

iv © IEEE 2009 – All rights reserved

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ISO/IEC/IEEE 8802-1AB:2014(E)
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ISO/IEC/IEEE 8802-1AB:2014(E)
(blank page)
vL © IEEE 2009 – All rights reserved

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ISO/IEC/IEEE 8802-1AB:2014(E)
™
IEEE Std 802.1AB -2009
(Revision of
IEEE Std 802.1AB-2005)
IEEE Standard for
Local and metropolitan area networks—
Station and Media Access Control
Connectivity Discovery
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 11 September 2009
IEEE-SA Standards Board
© IEEE 2009 – All rights reserved Yii

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ISO/IEC/IEEE 8802-1AB:2014(E)
Abstract: This document defines a protocol and a set of managed objects that can be used for
®
discovering the physical topology from adjacent stations in IEEE 802 LANs.
Keywords: link layer discovery protocol, management information base, topology discovery,
topology information
The Institute of Electrical and Electronics Engineers, Inc.
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Copyright © 2009 by the Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 17 September 2009. Printed in the United States of America.
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Electronics Engineers, Incorporated.
PDF: ISBN 978-0-7381-6038-2 STD95957
Print: ISBN 978-0-7381-6039-9 STDPD95957
No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior
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ISO/IEC/IEEE 8802-1AB:2014(E)
IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the
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ISO/IEC/IEEE 8802-1AB:2014(E)
Introduction

This introduction is not part of IEEE Std 802.1AB-2009, IEEE Standard for Local and Metropolitan Area
Networks—Station and Media Access Control Connectivity Discovery.
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ISO/IEC/IEEE 8802-1AB:2014(E)
Patents
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Copyright © 2009 IEEE. All rights reserved. [ xi

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ISO/IEC/IEEE 8802-1AB:2014(E)
Contents
1. Overview. 1
1.1 Scope. 1
1.2 Purpose. 2
2. Normative references. 3
3. Definitions and numerical representation . 5
3.1 Definitions . 5
3.2 Numerical representation. 6
4. Acronyms and abbreviations . 7
5. Conformance. 9
5.1 Terminology. 9
5.2 Protocol Implementation Conformance Statement (PICS). 9
5.3 Required capabilities. 9
5.4 Optional capabilities . 10
6. Principles of operation . 11
6.1 Transmission and reception .12
6.2 LLDP operational modes .12
6.3 LLDP information categories . 13
6.4 TLV selection . 14
6.5 Transmission principles . 14
6.6 Reception principles . 14
6.7 Systems with multiple LLDP Agents . 15
7. LLDPDU transmission, reception, and addressing. 19
7.1 Destination address . 19
7.2 Source address . 21
7.3 Ethertype use and encoding .22
7.4 LLDPDU reception. 22
8. LLDPDU and TLV formats. 23
8.1 LLDPDU bit and octet ordering conventions . 23
8.2 LLDPDU format . 23
8.3 TLV categories . 24
8.4 Basic TLV format . 24
8.5 Basic management TLV set formats and definitions. 26
8.6 Organizationally Specific TLVs . 34
9. LLDP agent operation. 37
9.1 Overview. 37
9.2 State machines . 40
10. LLDP management . 57
10.1 Data storage and retrieval . 57
10.2 The LLDP management entity’s responsibilities. 57
xii Copyright © 2009 IEEE. All rights reserved.

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ISO/IEC/IEEE 8802-1AB:2014(E)
10.3 Managed objects . 59
10.4 Data types . 59
10.5 LLDP variables . 59
11. LLDP MIB definitions. 62
11.1 Internet Standard Management Framework . 62
11.2 Structure of the LLDP MIB .62
11.3 Relationship to other MIBs. 67
11.4 Security considerations for LLDP base MIB module. 68
11.5 LLDP MIB modules , . 70
Annex A (normative) PICS proforma.115
A.1 Introduction. 115
A.2 Abbreviations and special symbols. 115
A.3 Instructions for completing the PICS proforma. 116
A.4 Major capabilities and options. 119
Annex B (normative) PTOPO MIB update . 121
Annex C (informative) Example LLDP transmission frame formats. 122
C.1 Direct-encoded LLDP frame format. 122
C.2 SNAP-encoded LLDP frame format. 122
Annex D (informative) Using LLDP to detect potential communication problems. 123
D.1 Overview. 123
D.2 IEEE 802.1 Organizationally Specific TLVs . 123
D.3 IEEE 802.3 Organizationally Specific TLVs . 125
Annex E (normative) IEEE 802.1 Organizationally Specific TLVs. 127
E.1 Requirements of the IEEE 802.1 Organizationally Specific TLV set . 127
E.2 Port VLAN ID TLV.127
E.3 Port And Protocol VLAN ID TLV . 128
E.4 VLAN Name TLV . 129
E.5 Protocol Identity TLV. 130
E.6 VID Usage Digest TLV . 131
E.7 Management VID TLV. 131
E.8 Link Aggregation TLV . 132
E.9 IEEE 802.1 Organizationally Specific TLV management. 132
E.10 IEEE 802.1/LLDP extension MIB. 133
E.11 PICS proforma for IEEE 802.1 Organizationally Specific TLV extensions . 163
Annex F (normative) IEEE 802.3 Organizationally Specific TLVs. 165
F.1 Requirements of the IEEE 802.3 Organizationally Specific TLV set . 165
F.2 MAC/PHY Configuration/Status TLV . 165
F.3 Power Via MDI TLV. 167
F.4 Maximum Frame Size TLV. 168
F.5 IEEE 802.3 Organizationally Specific TLV selection management . 168
F.6 IEEE 802.3/LLDP extension MIB. 169
F.7 PICS proforma for IEEE 802.3 TLV extensions . 187
Annex G (informative) Bibliography . 189
Annex H (informative) IEEE list of participants . 191
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ISO/IEC/IEEE 8802-1AB:2014(E)
List of figures
Figure 6-1 LLDP agent and its relationship to its LLC entity . 11
Figure 6-2 Relationship between LLDP agents, LLC Entities, MSAPs, and the LLDP
management entity . 15
Figure 6-3 LLDP in a MAC Bridge. 16
Figure 6-4 LLDP in an end system with port-based network access control . 16
Figure 6-5 LLDP in a MAC Bridge that uses port-based network access control on both ports . 17
Figure 6-6 Scope of group MAC addresses. 17
Figure 6-7 Multiplexing and demultiplexing using shims. 18
Figure 7-1 MSDU format . 19
Figure 8-1 LLDPDU Forma
...