IEEE 802.1AB-2005

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IEEE Standard for Local and metropolitan area networks — Station and Media Access Control Connectivity Discovery

Published By	Publication Date	Number of Pages
IEEE	2005

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Description

New IEEE Standard – Superseded. This document defines a protocol and a set of managed objects that can be used for discovering the physical topology from adjacent stations in 802 LANs.

PDF Catalog

PDF Pages	PDF Title
2	Title Page
4	Introduction Notice to users
5	Participants
7	CONTENTS
12	List of Figures
13	List of Tables
15	1. Overview 1.1 Scope 1.2 Purpose
17	2. References
19	3. Definitions and numerical representation 3.1 Definitions
20	3.2 Numerical representation
21	4. Acronyms and abbreviations
22	5. Conformance 5.1 Terminology 5.2 Required capabilities
23	5.3 Optional capabilities
24	6. Architectural overview
26	7. Principles of operation 7.1 LLDP operational modes 7.2 Connectivity and management information
27	7.3 Optional information categories 7.4 LLDP design principles
28	7.5 TLV selection 7.6 Transmission principles 7.7 Reception principles 7.7.1 LLDPDU and TLV error handling 7.7.2 LLDP remote systems MIB update
29	7.8 Relationship between LLDP and IETF MIBs 7.8.1 IETF Physical Topology MIB 7.8.2 IETF Entity MIB 7.8.3 IETF Interfaces MIB
30	8. LLDPDU transmission, reception, and addressing 8.1 Destination address
31	8.2 Source address 8.3 Ethertype use and encoding 8.4 LLDPDU reception
32	9. LLDPDU and TLV formats 9.1 LLDPDU bit and octet ordering conventions 9.2 LLDPDU format 9.3 TLV categories
33	9.4 Basic TLV format 9.4.1 TLV type
34	9.4.2 TLV information string length 9.4.3 TLV information string 9.5 Basic management TLV set formats and definitions 9.5.1 End Of LLDPDU TLV
35	9.5.2 Chassis ID TLV
36	9.5.3 Port ID TLV
38	9.5.4 Time To Live TLV 9.5.5 Port Description TLV
39	9.5.6 System Name TLV
40	9.5.7 System Description TLV 9.5.8 System Capabilities TLV
41	9.5.9 Management Address TLV
43	9.6 Organizationally Specific TLVs
44	9.6.1 Basic Organizationally Specific TLV format
45	9.6.2 Organizationally Specific TLV usage rules
46	10. The protocol
47	10.1 Protocol initialization 10.1.1 LLDP transmit module initialization 10.1.2 LLDP receive module initialization 10.2 Frame transmission
48	10.2.1 LLDPDU construction
49	10.2.2 LLDP frame formatting/transmission 10.3 Frame reception 10.3.1 LLDP frame recognition 10.3.2 LLDPDU validation
52	10.3.3 TLV/MIB object value comparison
53	10.3.4 Too many neighbors
54	10.3.5 LLDP remote systems MIB update 10.3.6 LLDP remote systems rxInfoTTL timer expiration 10.3.7 LLDP local port/connection failure 10.4 Notational conventions used in state diagrams.
57	10.5 State machines 10.5.1 Global variables 10.5.2 Statistical counters
58	10.5.3 Timers
59	10.5.4 Transmit state machine
60	10.5.5 Receive state machine
63	11. LLDP management 11.1 Data storage and retrieval 11.2 The LLDP manager’s responsibilities: 11.2.1 Protocol initialization management 11.2.2 TLV selection management
64	11.2.3 Transmission management 11.2.4 Reception management 11.2.5 Performance management
65	11.3 Managed objects 11.4 Data types 11.5 LLDP variables 11.5.1 LLDP operational status and control
66	11.5.2 LLDP operational statistics counters 11.5.3 TLV required variables
67	11.5.4 Relationship between LLDP variables and LLDP managed objects
71	12. LLDP MIB definitions 12.1 LLDP MIB design philosophy
72	12.2 LLDP MIB module ,
107	12.3 Security considerations for LLDP base MIB module
109	Annex A (informative) Bibliography
110	Annex B (normative) PICS Proforma B.1 Introduction B.2 Abbreviations and special symbols
111	B.3 Instructions for completing the PICS proforma
114	B.4 Major capabilities and options
116	Annex C (informative) PTOPO MIB update
117	Annex D (informative) Example LLDP transmission frame formats D.1 Direct-encoded LLDP frame format D.2 SNAP-encoded LLDP frame format
118	Annex E (informative) Using LLDP to detect potential communication problems E.1 Overview E.2 IEEE 802.1 Organizationally Specific TLVs
119	E.3 IEEE 802.3 Organizationally Specific TLVs
121	Annex F (normative) IEEE 802.1 Organizationally Specific TLVs F.1 Requirements of the IEEE 802.1 Organizationally Specific TLV set F.2 Port VLAN ID TLV
122	F.3 Port And Protocol VLAN ID TLV
123	F.4 VLAN Name TLV
124	F.5 Protocol Identity TLV
125	F.6 IEEE 802.1 Organizationally Specific TLV management
127	F.7 IEEE 802.1/LLDP extension MIB
144	F.8 PICS proforma for IEEE 802.1 Organizationally SpecificTLV extensions
146	Annex G (normative) IEEE 802.3 Organizationally Specific TLVs G.1 Requirements of the IEEE 802.3 Organizationally Specific TLV set G.2 MAC/PHY Configuration/Status TLV
147	G.3 Power Via MDI TLV
149	G.4 Link Aggregation TLV
150	G.5 Maximum Frame Size TLV G.6 IEEE 802.3 Organizationally Specific TLV selection management
153	G.7 IEEE 802.1/LLDP extension MIB
171	G.8 PICS proforma for IEEE 802.3 TLV extensions

Additional information

Standard Title	IEEE Standard for Local and metropolitan area networks — Station and Media Access Control Connectivity Discovery
Published Code	IEEE
Publication Date	2005

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IEEE 802.1AB-2005

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