TN-LACP-MIB

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Organization: Transition Networks, Inc.

Last Updated: 2015-07-15

Category: Link Aggregation, Transition Networks Media Converters

Description: Manages Transition Networks LACP aggregation port configuration and protocol state.

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What Is TN-LACP-MIB?

TN-LACP-MIB is a Transition Networks proprietary module for configuring and monitoring Link Aggregation Control Protocol (LACP) on their switch products. It exposes per-port LACP configuration data (admin mode, key mode, admin key, port priority, timeout) as well as system-level aggregation status showing which aggregator ID a port group has formed. Its monitoring value lies in verifying the operational status of link aggregation groups so that administrators can detect a port that has failed to join its expected aggregate, which could otherwise silently reduce available bandwidth or create asymmetric forwarding. It is a vendor-specific complement to the standardized IEEE 802.3ad (dot3ad) aggregation MIB and is often used alongside IF-MIB for underlying interface statistics. It is deployed in switch-to-switch or switch-to-server uplinks where multiple physical links are bundled for redundancy and increased throughput. Engineers can download the TN-LACP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TN-LACP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Transition Networks managed Ethernet switch

Monitoring Examples

An administrator would poll tnLacpConfigPortTable to confirm tnLacpConfigPortDot3adAggrActorAdminMode is enabled on all intended trunk ports and check tnLacpConfigPortDot3adAggrRole and tnLacpConfigPortDot3adAggrTimeout for consistency across the aggregation group. Checking tnLacpStatusSystemTable's tnLacpStatusSystemDot3adAggrID reveals whether ports that should be bundled together actually share the same aggregator ID; a port reporting a different or null aggregator ID indicates it has dropped out of the LACP bundle, signaling a possible cable, negotiation, or peer-configuration fault.

What Can Be Monitored

LACP admin mode per port
LACP actor key and priority
LACP timeout setting
aggregation group role
aggregator ID membership

Imported Objects

From Q-BRIDGE-MIB

PortList

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress
TEXTUAL-CONVENTION
TruthValue

From TN-TC

TNInterfaceIndex
TNUnsigned16
TNUnsigned8

From TRANSITION-SMI

tnProducts

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
tnLacpMib	1.3.6.1.4.1.868.2.5.35			The mib module for DHCP settings.
tnLacpConfigPortTable	1.3.6.1.4.1.868.2.5.35.1		not-accessible	This is a table of the LACP port configurations
tnLacpConfigPortEntry	1.3.6.1.4.1.868.2.5.35.1.1		not-accessible	Each port has a set of parameters
NUM tnLacpConfigPortInterfaceNo	1.3.6.1.4.1.868.2.5.35.1.1.1	TNInterfaceIndex	not-accessible	Logical interface number.
INT tnLacpConfigPortDot3adAggrActorAdminMode	1.3.6.1.4.1.868.2.5.35.1.1.2	INTEGER	read-write	Control whether port is LACP enabled(1) or disabled(0).
INT tnLacpConfigPortDot3adAggrActorKeyMode	1.3.6.1.4.1.868.2.5.35.1.1.3	INTEGER	read-only	The Auto setting will set the key as appropriate by the physical link speed, 10Mb = 1, 100Mb = 2, 1Gb = 3. Using the Specific setting, a user-defined value can be entered. Ports with the same Key value can participate in the same aggregation group, while ports with different keys cannot.
U32 tnLacpConfigPortDot3adAggrActorAdminKey	1.3.6.1.4.1.868.2.5.35.1.1.4	Unsigned32	read-write	The current administrative value of the Key for the Aggregator. The administrative Key value may differ from the operational Key value for the reasons discussed in 43.6.2. This is a 16-bit, read-write value. The meaning of particular Key values is of local significance
INT tnLacpConfigPortDot3adAggrRole	1.3.6.1.4.1.868.2.5.35.1.1.5	INTEGER	read-write	The Role shows the LACP activity status. The Active(true) will transmit LACP packets each second, while Passive(false) will wait for a LACP packet from a partner
INT tnLacpConfigPortDot3adAggrTimeout	1.3.6.1.4.1.868.2.5.35.1.1.6	INTEGER	read-write	The Timeout controls the period between BPDU transmissions. Fast(true) will transmit LACP packets each second, while Slow(0) will wait for 30 seconds before sending a LACP packet.
U32 tnLacpConfigPortDot3adAggrPortPriority	1.3.6.1.4.1.868.2.5.35.1.1.7	Unsigned32	read-write	The Port Priority controls the priority of the port. If the LACP partner wants to form a larger group than is supported by this device then this parameter will control which ports will be active and which ports will be in a backup role. Lower number means greater priority.
tnLacpStatusSystemTable	1.3.6.1.4.1.868.2.5.35.2		not-accessible	This is a table of the LACP system status
tnLacpStatusSystemEntry	1.3.6.1.4.1.868.2.5.35.2.1		not-accessible	Each lag has a set of parameters
STR tnLacpStatusSystemDot3adAggrID	1.3.6.1.4.1.868.2.5.35.2.1.1	DisplayString	read-only	The aggregation ID for a particular link aggregation group.
MAC tnLacpStatusSystemDot3adAggrPartnerSystemID	1.3.6.1.4.1.868.2.5.35.2.1.2	MacAddress	read-only	The system ID (MAC address) of the aggregation partner.
TNU tnLacpStatusSystemDot3adAggrPartnerOperKey	1.3.6.1.4.1.868.2.5.35.2.1.3	TNUnsigned16	read-only	The Key that the partner has assigned to this aggregation ID.
TNU tnLacpStatusSystemDot3adAggrPartnerOperSystemPriority	1.3.6.1.4.1.868.2.5.35.2.1.4	TNUnsigned16	read-only	A 2-octet read-only value indicating the operational value of priority associated with the Partner's System ID. The value of this attribute may contain the manually configured value carried in aAggPortPartnerAdminSystemPriority if there is no protocol Partner.
U32 tnLacpStatusSystemDot3adAggrPartnerStateLastChanged	1.3.6.1.4.1.868.2.5.35.2.1.5	Unsigned32	read-only	The time in second since this aggregation changed
POR tnLacpStatusSystemDot3adAggrLocalPorts	1.3.6.1.4.1.868.2.5.35.2.1.6	PortList	read-only	Local port list
tnLacpStatusPortTable	1.3.6.1.4.1.868.2.5.35.3		not-accessible	This is a table of the LACP port status
tnLacpStatusPortEntry	1.3.6.1.4.1.868.2.5.35.3.1		not-accessible	Each port has a set of parameters
NUM tnLacpStatusPortInterfaceNo	1.3.6.1.4.1.868.2.5.35.3.1.1	TNInterfaceIndex	not-accessible	Logical interface number.
INT tnLacpStatusPortDot3adAggrActorAdminMode	1.3.6.1.4.1.868.2.5.35.3.1.2	INTEGER	read-only	Shows the current Admin mode of port, if LACP enabled then returns true else returns false.
INT tnLacpStatusPortDot3adAggrActorAdminKey	1.3.6.1.4.1.868.2.5.35.3.1.3	INTEGER	read-only	Shows the current administrative value of the Key for the Aggregator. The administrative Key value may differ from the operational Key value for the reasons discussed in 43.6.2. This is a 16-bit, read-write value. The meaning of particular Key values is of local significance
STR tnLacpStatusPortDot3adAggrActorID	1.3.6.1.4.1.868.2.5.35.3.1.4	DisplayString	read-only	The Aggregation ID assigned to this aggregation group.
MAC tnLacpStatusPortDot3adAggrPartnerSystemID	1.3.6.1.4.1.868.2.5.35.3.1.5	MacAddress	read-only	The system ID (MAC address) of the aggregation partner.
INT tnLacpStatusPortDot3adAggrPartnerOperPortIndex	1.3.6.1.4.1.868.2.5.35.3.1.6	INTEGER	read-only	Shows the port index of the partner port connected to this port.
TNU tnLacpStatusPortDot3adAggrPartnerOperPortPriority	1.3.6.1.4.1.868.2.5.35.3.1.7	TNUnsigned16	read-only	Shows the port priority of the port partner port connected to this port.
tnLacpStatisticsPortTable	1.3.6.1.4.1.868.2.5.35.4		not-accessible	This is a table of the LACP port statistics
tnLacpStatisticsPortEntry	1.3.6.1.4.1.868.2.5.35.4.1		not-accessible	Each port has a set of parameters
NUM tnLacpStatisticsPortInterfaceNo	1.3.6.1.4.1.868.2.5.35.4.1.1	TNInterfaceIndex	not-accessible	Logical interface number.
U32 tnLacpStatisticsPortDot3adAggrRxFrames	1.3.6.1.4.1.868.2.5.35.4.1.2	Unsigned32	read-only	Shows received LACP frame count.
U32 tnLacpStatisticsPortDot3adAggrTxFrames	1.3.6.1.4.1.868.2.5.35.4.1.3	Unsigned32	read-only	Shows transmitted LACP frame count.
U32 tnLacpStatisticsPortDot3adAggrRxUnknownFrames	1.3.6.1.4.1.868.2.5.35.4.1.4	Unsigned32	read-only	Shows recevied unknown LACP frame count.
U32 tnLacpStatisticsPortDot3adAggrRxIllegalFrames	1.3.6.1.4.1.868.2.5.35.4.1.5	Unsigned32	read-only	Shows recevied illegal LACP frame count.

RFC description

Transition Networks vendor-specific SNMP MIB for managing Link Aggregation Control Protocol (LACP) IEEE 802.3ad port grouping, enabling bundling of multiple physical interfaces into logical link aggregation groups for increased bandwidth and redundancy.

Start monitoring Transition Networks managed Ethernet switch (LACP per-port config/aggregator status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download TN-LACP-MIB

What Is TN-LACP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description