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The 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 XE software. The LAG MIB supports the management of interfaces and ports that are part of an LACP port channel and is accessed by a Simple Network Management Protocol (SNMP) manager application.
Link aggregation must be configured using the LACP command-line interface (CLI) commands before the MIB tables can be accessed.
LACP must be supported in the image.
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 XE software, see the “Configuring SNMP Support” chapter of the Cisco IOS XE Network Management Configuration Guide, Release 2.
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" feature guide.
This section lists the MIB objects and tables that are supported as part of this feature.
The dot3adTablesLastChanged object indicates the time of the most recent change to the dot3adAggTable, dot3adAggPortListTable, or dot3adAggPortTable.
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 the table below.
|
Object |
Maximum Access/Description |
|---|---|
|
dot3adAggActorAdminKey |
Cannot be changed via the SET operation. |
|
dot3adAggActorOperKey |
Write access not supported. |
|
dot3adAggActorSystemID |
Write access not supported. |
|
dot3adAggActorSystemPriority |
Write access not supported. |
|
dot3adAggAggregateOrIndividual |
Returns a value of TRUE if more than 1 port is configured in the channel; otherwise, returns a value of FALSE. |
|
dot3adAggCollectorMaxDelay |
Cannot be changed via the SET operation. |
|
dot3adAggIndex |
Write access not supported. |
|
dot3adAggMACAddress |
Write access not supported. |
|
dot3adAggPartnerOperKey |
Write access not supported. |
|
dot3adAggPartnerSystemID |
Write access not supported. |
|
dot3adAggPartnerSystemPriority |
Write access not supported. |
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 the table below.
|
Object |
Maximum Access/Description |
|---|---|
|
dot3adAggPortListPorts |
Write access not supported. |
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 the table below.
|
Object |
Maximum Access/Description |
|---|---|
|
dot3adAggPortActorAdminKey |
Write access not supported. |
|
dot3adAggPortActorAdminState |
Write access not supported. |
|
dot3adAggPortActorOperKey |
Read-only access supported. |
|
dot3adAggPortActorOperState |
Write access not supported. |
|
dot3adAggPortActorPort |
Write access not supported. |
|
dot3adAggPortActorPortPriority |
Write access not supported. |
|
dot3adAggPortActorSystemID |
Write access not supported. |
|
dot3adAggPortActorSystemPriority |
Write access not supported. |
|
dot3adAggPortAggregateOrIndividual |
Indicates whether a port is attached to an LACP channel. If the port is attached to an LACP channel and the value of the dot3adAggPortAttachedAggID object in the same row is not zero, the value of this object is TRUE. Otherwise, the value is FALSE. |
|
dot3adAggPortAttachedAggID |
Write access not supported. |
|
dot3adAggPortIndex |
Write access not supported. |
|
dot3adAggPortPartnerAdminKey |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerAdminPort |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerAdminPortPriority |
Write access not supported. |
|
dot3adAggPortPartnerAdminState |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerAdminSystemID |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerAdminSystemPriority |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerOperKey |
Write access not supported. |
|
dot3adAggPortPartnerOperPort |
Cannot be changed via the SET operation. |
|
dot3adAggPortPartnerOperPortPriority |
Write access not supported. |
|
dot3adAggPortPartnerOperState |
Write access is not supported. |
|
dot3adAggPortPartnerOperSystemID |
Write access not supported. |
|
dot3adAggPortPartnerOperSystemPriority |
Write access not supported. |
|
dot3adAggPortSelectedAggID |
Write access not supported. |
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 the table below.
|
Object |
Maximum Access/Description |
|---|---|
|
dot3adAggPortStatsIllegalRx |
Write access not supported. |
|
dot3adAggPortStatsLACPDUsRx |
Write access not supported. |
|
dot3adAggPortStatsLACPDUsTx |
Write access not supported. |
|
dot3adAggPortStatsMarkerPDUsRx |
Write access not supported. |
|
dot3adAggPortStatsMarkerPDUsTx |
Write access not supported. |
|
dot3adAggPortStatsMarkerResponsePDUsRx |
Write access not supported. |
|
dot3adAggPortStatsMarkerResponsePDUsTx |
Write access not supported. |
|
dot3adAggPortStatsUnknownRx |
Write access not supported. |
|
Related Topic |
Document Title |
|---|---|
|
Link aggregation configuration tasks |
"Configuring IEEE 802.3ad Link Bundling" feature guide |
|
Cisco IOS XE LACP commands: complete command syntax, command mode, command history, defaults, usage guidelines, and examples |
Cisco IOS Carrier Ethernet Command Reference |
|
Configuring SNMP |
“Configuring SNMP Support” chapter of the Cisco IOS XE Network Management Configuration Guide, Release 2 |
|
Cisco IOS XE SNMP commands: complete command syntax, command mode, command history, defaults, usage guidelines, and examples |
Cisco IOS Network Management Command Reference |
|
Standard |
Title |
|---|---|
|
IEEE 802.3ad |
IEEE 802.3ad-2000 Link Aggregation |
|
MIB |
MIBs Link |
|---|---|
|
To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL: |
|
RFC |
Title |
|---|---|
|
No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature |
-- |
|
Description |
Link |
|---|---|
|
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
IEEE 802.3ad MIB |
Cisco IOS XE Release 2.5 |
This feature introduces LAG MIB support in Cisco IOS XE software. The LAG MIB supports the management of interfaces and ports that are part of an LACP port channel and is accessed by an SNMP manager application. This feature uses no commands. |
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