IEEE Std 802.1AX-2020 pdf free download – IEEE Standard for Local and Metropolitan Area Networks— Link Aggregation.
Link Aggregation provides protocols, procedures, and managed objects that allow the following:
— One or more parallel instances of point-to-point links to be aggregated together to form a Link Aggregation Group (LAG) so that a Link Aggregation Client can treat the LAG as if it were a single link.
— Conversation-Sensitive Collection and Distribution (CSCD) that specifies a means to identify the distribution algorithm in use to assign frames to individual links in a LAG and to convey that information to the System at the other end of the LAG.
— Distributed Resilient Network Interface (DRNI) that enables a LAG to terminate at a pair of cooperating Systems in order to provide system-level as well as link-level resiliency.
1.2 Purpose
Link Aggregation allows the establishment of point-to-point links that have a higher aggregate bandwidth than the individual links that form the aggregation and the use of multiple systems at each end of the aggregation. This allows improved utilization of available links in Bridged local area network (LAN) environments, along with improved resilience in the face of failure of individual links or systems. In applications connecting separately administered networks, the networks are isolated from each other’s fault recovery events.
1.3 State diagram conventions
This standard uses the state diagram conventions in Annex E of IEEE Std 802.1Q ™ -2018. 1
When implementation of a state diagram is required for conformance, all states and transitions shown with solid lines shall be implemented. States and transitions shown with dashed lines may be implemented.
If a conflict exists between a state diagram and either the corresponding global transition tables or the textual description associated with the state machine, the state diagram takes precedence.
2. Normative references
The following referenced documents are indispensable for the application of this standard (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this standard is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
IEEE Std 802 ® , IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture.
IEEE Std 802.1AC ™ , IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Service Definition.
IEEE Std 802.1Q ™ , IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks.
IEEE Std 802.3 ™ , IEEE Standard for Ethernet.
IETF RFC 1213 (IETF STD 17), Management Information Base for Network Management of TCP/IP-based internets: MIB-II, McCloghrie, K., and M. Rose, editors, Mar. 1991. 4
IETF RFC 1321, The MD5 Message-Digest Algorithm, R. Rivest, Apr. 1992.
IETF RFC 2578 (STD 58), Structure of Management Information Version 2 (SMIv2), McCloghrie, K.,D. Perkins, and J. Schoenwaelder, Apr. 1999.
IETF RFC 2579 (STD 58), Textual Conventions for SMIv2, McCloghrie, K., D. Perkins, J. Schoenwaelder,J. Case, M. Rose, and S. Waldbusser, Apr. 1999.
IETF RFC 2580 (STD 58), Conformance Statements for SMIv2, McCloghrie, K., D. Perkins,J. Schoenwaelder, J. Case, M. Rose, and S. Waldbusser, Apr. 1999.
IETF RFC 2863, The Interfaces Group MIB, McCloghrie, K., and F. Kastenholz, June 2000.
IETF RFC 3410, Introduction and Applicability Statements for Internet-Standard Management Framework,Case, J., R. Mundy, D. Partain, and B. Stewart, Dec. 2002.
IETF RFC 3414 (STD 62), User-based Security Model (USM) for Version 3 of the Simple Network Management Protocol (SNMPv3), Blumenthal, U., and B. Wijnen, Dec. 2002.
IETF RFC 3415 (STD 62), View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP), Wijnen, B., R. Presuhn, and K. McCloghrie, Dec. 2002.
ISO/IEC 10165-4:1992, Information technology—Open Systems Interconnection—Structure of management information—Part 4: Guidelines for the definition of managed objects.IEEE Std 802.1AX pdf download.