Table Of Contents
Using the IEEE 802.3ad Link Aggregation MIB
Prerequisites for Using the IEEE 802.3ad Link Aggregation MIB
Information About Using the IEEE 802.3ad Link Aggregation MIB
Configuration and Management of LACP bundles
LAG MIB Table Object Definitions
dot3adTablesLastChanged Object
Feature Information for Using the IEEE 802.3ad Link Aggregation MIB
Using the IEEE 802.3ad Link Aggregation MIB
First Published: April 21, 2008Last Updated: April 21, 2008The IEEE 802.3ad Link Aggregation Control Protocol (LACP) enables the bundling of physical interfaces on a physical device to achieve more bandwidth than is available using a single interface. This feature introduces IEEE 802.3ad Link Aggregation (LAG) MIB support in Cisco IOS software. The LAG MIB both supports the management of interfaces and ports that are part of an LACP port channel and is accessed by a Simple Network Manager Protocol (SNMP) manager application.
Finding Feature Information in This Module
Your Cisco IOS software release may not support all of the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the "Feature Information for Using the IEEE 802.3ad Link Aggregation MIB" section.
Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Contents
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Prerequisites for Using the IEEE 802.3ad Link Aggregation MIB
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Prerequisites for Using the IEEE 802.3ad Link Aggregation MIB
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Information About Using the IEEE 802.3ad Link Aggregation MIB
To use the IEEE 802.3ad LAG MIB, you should understand the following concepts:
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IEEE 802.3ad LAG MIB
The IEEE 802.3ad LAG MIB supports the management of interfaces and ports that are part of an LACP port channel. No specific commands are used to enable the MIB; access is through an SNMP manager application. For information about using SNMP in Cisco IOS software, see the "Configuring SNMP Support" chapter of the Cisco IOS Network Management Configuration Guide.
Configuration and Management of LACP bundles
To use the LAG MIB, it is important to know how LACP bundles are configured and managed. For more information about LACP bundles, see the "Configuring IEEE 802.3ad Link Bundling and Load Balancing" chapter of the Cisco IOS Carrier Ethernet Configuration Guide.
LAG MIB Table Object Definitions
This section lists the MIB objects and tables that are supported as part of this feature.
dot3adTablesLastChanged Object
The dot3adTablesLastChanged object indicates the time of the most recent change to the dot3adAggTable, dot3adAggPortListTable, or dot3adAggPortTable.
dot3adAggTable
The dot3adAggTable (Aggregator Configuration table) contains information about every aggregator that is associated with a system. Each LACP channel in a device occupies an entry in the dot3adAggTable. Some objects in the table have restrictions, which are described with the object. The objects are described in Table 1.
dot3adAggPortListTable
The dot3adAggPortListTable (Aggregation Port List table) contains a list of all the ports associated with each aggregator. Each LACP channel in a device occupies an entry in the table. The objects are described in Table 2.
Table 2 Aggregation Port List Table Objects
dot3adAggPortListPorts
Write access not supported.
dot3adAggPortTable
The dot3adAggPortTable (Aggregation Port table) contains LACP configuration information about every aggregation port associated with a device. Each physical port in a device occupies an entry in the dot3adAggPortTable. The objects are described in Table 3.
dot3adAggPortStatsTable
The dot3adAggPortStatsTable (LACP Statistics table) contains link aggregation information about every port that is associated with a device. Each physical port occupies a row in the table. The objects are described in Table 4.
Additional References
The following sections provide references related to using the IEEE 802.3ad LAG MIB.
Related Documents
Link aggregation configuration tasks
"Configuring IEEE 802.3ad Link Bundling and Load Balancing" chapter of the Cisco IOS Carrier Ethernet Configuration Guide
Cisco IOS LACP commands
Configuring SNMP
"Configuring SNMP Support" chapter of the Cisco IOS Network Management Configuration Guide
Cisco IOS SNMP commands
Standards
MIBs
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To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
RFCs
No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature
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Technical Assistance
Feature Information for Using the IEEE 802.3ad Link Aggregation MIB
Table 5 lists the release history for this feature.
Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Note
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