802.1ab协议分享

dingjiming119

最新的802.1ab协议已经变成2016版本
Contents
1.   Overview................................................................................................................................................. 1
1.1 Scope........................................................................................................................................ 2
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......................................................................................................................... 13
6.5 Transmission principles ......................................................................................................... 13
6.6 Reception principles............................................................................................................... 14
6.7 Systems with multiple LLDP Agents .................................................................................... 14
6.8 LLDP and Link Aggregation ................................................................................................. 18
7.   LLDPDU transmission, reception, and addressing............................................................................... 19
7.1 Destination address ................................................................................................................ 19
7.2 Source address ....................................................................................................................... 21
7.3 EtherType use and encoding..................................................................................................21
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
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.......................................................................................................... 121
Annex B (normative) PTOPO MIB update ................................................................................................. 127
Annex C (informative) Example LLDP transmission frame formats.......................................................... 128
Annex D (informative) Bibliography........................................................................................................... 129