LAG-ARCH-MIB

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Category: Network Interfaces, Standard: IETF, Technology: Link Aggregation, Technology: Switching/L2

Description: MIB for managing the architecture of IEEE 802.3ad Link Aggregation Groups (LAG), including distributor and collector statistics.

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What Is LAG-ARCH-MIB?

LAG-ARCH-MIB is a vendor-neutral MIB modeling the IEEE 802.3ad (now 802.1AX) Link Aggregation architecture, covering the distributor and collector functions that split and recombine frames across the physical links of an aggregated port bundle. No sample object names were supplied in the available source, so specific OIDs cannot be cited, but a MIB of this kind generally exposes per-aggregate-port distribution/collection statistics and state alongside the aggregation membership itself. Its role is monitoring the software/protocol-layer health of link aggregation: verifying frames are being evenly distributed and collected across member links helps detect a failed or flapping member link within a LAG bundle, a link-layer/software concern rather than a hardware sensor reading. It is closely tied to the standard IEEE 802.3ad/dot3ad aggregation model and complements the IETF's own LAG-related MIB (IEEE8023-LAG-MIB). It is deployed on switches and routers using link aggregation (LACP) to bundle multiple physical links into one logical channel. Engineers implementing or auditing this functionality typically reference the LAG-ARCH-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in LAG-ARCH-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

ZyXEL managed switch/router (Link Aggregation architecture, distributor/collector functions)

Monitoring Examples

No sample object names were provided for this module, so a concrete polling example citing real OIDs cannot be given honestly; in general a LAG architecture MIB of this kind would be used to compare per-link distributor/collector frame counts across an aggregate to spot an underperforming or failed member link.

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

IpAddress
TimeTicks
enterprises

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
zyxel	1.3.6.1.4.1.13464
lag	1.3.6.1.4.1.13464.1556
lagArchTrunkGroup	1.3.6.1.4.1.13464.1556.1
lagTrunkGroupTable	1.3.6.1.4.1.13464.1556.1.1		not-accessible	A table that contains the Trunk Group Table Entry rule that defines the distribution algorithm for every Link Aggregator that is associated with this System.
lagTrunkGroupTableEntry	1.3.6.1.4.1.13464.1556.1.1.1		not-accessible	A list of the rules applied to the entries of the Trunk Group Table parameters. This is indexed by the ifIndex of the Aggregator, which is also the dot3adAggIndex.
INT lagTrunkGroupTableAggIndex	1.3.6.1.4.1.13464.1556.1.1.1.1	INTEGER	not-accessible	The unique identifier allocated to this Aggregator by the local System. This attribute identifies an Aggregator instance among the subordinate managed objects of the containing object. This value is read-only. This is the same value as the dot3adAggIndex in the dot3adAggTable.
INT lagTrunkGroupTableRule	1.3.6.1.4.1.13464.1556.1.1.1.2	INTEGER	read-write	The Rule to be applied to this Link Aggregator's Trunk Group Table. The rules are based on the following selections SrcMAC (1), means that the last three bits of the Source MAC Address are used to index the Trunk Group to get the destination port. DestMAC (2), means the last three bits of the Destination MAC Address are used to index into the Trunk Group to get the destination port. SrcXORDestMAC (3), means that the last three bits of the Source MAC Address are logically XORed with the last three bits of the Destination MAC Address and used to index into the Trunk Group to get the destination port. SrcIP (4), means the last three bits of the Source IP Address are used to index into the Trunk Group to get the destination port. DestIP (5), means the last three bits of the Destination IP Address are used to index into the Trunk Group to get the destination port. SrcXORDestIP (6), means the last three bits of the Source IP Address are logically XORed with the last three bits of the Destination IP Address and used to index into the Trunk Group to get the destination port. This rule defines the distribution algorithm applied to the aggregated link.
lagLinkStateTable	1.3.6.1.4.1.13464.1556.1.2		not-accessible	A table that contains the Link State Table Entry that defines the state of each ports link.
lagLinkStateTableEntry	1.3.6.1.4.1.13464.1556.1.2.1		not-accessible	A list of the link states. This is indexed by the ifIndex of the Aggregator, which is also the dot3adAggIndex.
INT lagLinkStateAggIndex	1.3.6.1.4.1.13464.1556.1.2.1.1	INTEGER	not-accessible	The unique identifier allocated to this Aggregator by the local System. This attribute identifies an Aggregator instance among the subordinate managed objects of the containing object.
INT lagLinkState	1.3.6.1.4.1.13464.1556.1.2.1.2	INTEGER	read-write	The state of this Link Aggregator port.
INT lagAggregateOrIndividual	1.3.6.1.4.1.13464.1556.1.2.1.3	INTEGER	read-write	The state of this Link Aggregator port. Indicating whether the Aggregation Port is able to Aggregate ('TRUE') or is only able to operate as an Individual link ('FALSE').

RFC description

MIB for managing IEEE 802.3ad Link Aggregation Group (LAG) architecture including distributor and collector statistics.

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Download LAG-ARCH-MIB

What Is LAG-ARCH-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description