IEEE 802.1ABdh-2021
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IEEE Standard for Local and metropolitan area networks– Station and Media Access Control Connectivity Discovery Amendment 2: Support for Multiframe Protocol Data Units
| Published By | Publication Date | Number of Pages |
| IEEE | 2021 |
Amendment Standard – Active. This amendment to IEEE Std 802.1AB(TM)-2016 specifies protocols, procedures and managed objects that support the transmission and reception of a set of Link Layer Discovery Protocol (LLDP) Type/Length/Values (TLVs) that exceed the space available in a single frame.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std 802.1ABdhā¢-2021 Front Cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 10 | Introduction |
| 11 | Contents |
| 13 | 3. Definitions and numerical representation 3.1 Definitions |
| 14 | 4. Acronyms and abbreviations |
| 15 | 5. Conformance 5.3 Required capabilities |
| 16 | 6. Principles of operation 6.1 Transmission and reception |
| 17 | 6.2 LLDP operational modes |
| 18 | 6.5 Transmission principles 6.6 Reception principles 6.6.1 LLDPDU and TLV error handling |
| 19 | 6.7 Systems with multiple LLDP Agents 6.9 Extended LLDP (XLLDP) |
| 21 | 7. LLDPDU transmission, reception, and addressing 7.1 Destination address 7.1.1 Destination address for Normal LLDPDUs |
| 22 | 7.1.2 Destination address for Extension Request and Extension LLDPDUs 7.2 Source address 7.4 LLDPDU reception |
| 23 | 8. LLDPDU and TLV formats 8.2 LLDPDU format |
| 24 | 8.3 TLV categories |
| 25 | 8.4 Basic TLV format 8.4.1 TLV type 8.5 Basic management TLV set formats and definitions 8.5.2 Chassis ID TLV |
| 26 | 8.5.3 Port ID TLV 8.5.4 Time To Live TLV 8.5.4.2 Time To Live TLV usage rules 8.5a Extended LLDP set TLV formats and definitions 8.5a.1 Manifest TLV |
| 27 | 8.5a.1.1 TLV information string length 8.5a.1.2 Return MAC Address 8.5a.1.3 Total MIB entry size 8.5a.1.4 Number of XPDUs 8.5a.1.5 XPDU Descriptor 8.5a.1.6 Manifest TLV usage rules |
| 28 | 8.5a.2 Extension Request TLV 8.5a.2.1 TLV information string length 8.5a.2.2 Return MAC Address 8.5a.2.3 Scope MAC Address 8.5a.2.4 Number of XPDUs 8.5a.2.5 XPDU Descriptor 8.5a.2.6 Extension Request TLV usage rules |
| 29 | 8.5a.3 Extension Identifier TLV 8.5a.3.1 TLV information string length 8.5a.3.2 Scope MAC Address 8.5a.3.3 XPDU Number 8.5a.3.4 XPDU Revision 8.5a.3.5 Extension Identifier TLV usage rules 8.6 Organizationally Specific TLVs |
| 30 | 8.6.1 Basic Organizationally Specific TLV format |
| 31 | 9. LLDP agent operation 9.1 Overview |
| 32 | 9.1.1 Frame transmission 9.1.1.1 Normal LLDPDUs |
| 33 | 9.1.1.2 9.1.2.2 Shutdown LLDPDUs |
| 34 | 9.1.1.3 Extension Request LLDPDUs 9.1.1.4 Extension LLDPDUs 9.1.2 Frame reception 9.1.2.1 Frame recognition 9.1.2.2 Frame validation |
| 35 | 9.1.2.3 TLV collection 9.1.2.4 LLDP remote systems MIB updating |
| 36 | 9.2 State machines 9.2.1 Notational conventions used in state diagrams |
| 37 | 9.2.2 Timers 9.2.2.5 rxTimer 9.2.5 Per-Agent variables 9.2.5.3 Scope MAC Address address |
| 38 | 9.2.5.8 rcvFrame 9.2.5.14 rxType 9.2.5.15 sentManifest 9.2.5a Per-Neighbor variables |
| 39 | 9.2.5a.1 createExtRx 9.2.5a.2 rxExtended 9.2.5a.3 manifestComplete 9.2.5a.4 xreqComplete 9.2.5a.5 rxTick 9.2.5a.6 rxTTLExpired 9.2.7 State machine procedures 9.2.7.4 mibDeleteObjects() 9.2.7.5 mibUpdateObjects() |
| 40 | 9.2.7.5.1 Too many neighbors |
| 41 | 9.2.7.7 rxProcessFrame() 9.2.7.7.1 LLDPDU validation |
| 44 | 9.2.7.7.2 General validation rules for all TLVs |
| 45 | 9.2.7.11 txFrame() |
| 46 | 9.2.7.12 txInitializeLLDP() 9.2.7.13 rxProcessManifest() 9.2.7.14 rxProcessXPDU() |
| 47 | 9.2.7.15 checkManifest() 9.2.7.16 constructXreqPDU() 9.2.7.17 checkRxTimer() 9.2.7.18 rxProcessXREQ() 9.2.9 Receive state machine |
| 51 | 10. LLDP management 10.2 The LLDP management entityās responsibilities 10.2.2 TLV selection management 10.2.3 Transmission management |
| 52 | 10.2.4 Reception management |
| 53 | Annex A (normative) PICS Proforma A.4 Major capabilities and options |
| 55 | Annex D (informative) Bibliography |
| 56 | Back Cover |
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