ZYXEL-LAG-MIB

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Organization: Enterprise Solution ZyXEL

Last Updated: 2012-07-01

Category: ZyXEL Spanning Tree and Link Redundancy

Description: Manages ZyXEL Link Aggregation Groups for configuring LACP trunks and static port channel bundles.

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What Is ZYXEL-LAG-MIB?

ZYXEL-LAG-MIB is a ZyXEL enterprise MIB covering the subtree for Link Aggregation Groups, the feature that bundles multiple physical Ethernet ports into one logical trunk using LACP (dynamic) or static configuration for higher bandwidth and link redundancy. It exposes configuration for LAG group membership and mode (static/LACP), plus operational data on which member ports are currently active within each aggregate. This gives it direct hardware/link status monitoring value: administrators can check whether all expected member links of a LAG are up and aggregated, since a member port failure reduces available bandwidth in a way that may not be obvious from a single-interface view. It relies on the IEEE 802.3ad/802.1AX link aggregation model and the device's IF-MIB interface table for individual member port status. It is deployed on ZyXEL switches wherever uplinks between switches, or to servers/firewalls, require higher throughput and resiliency than a single physical link provides, with status visible through the ZYXEL-LAG-MIB MIB.

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

Monitoring Examples

No sample objects were provided, but a LAG MIB of this kind typically defines a LAG group table and a LAG member-port table showing which physical ports are bundled into each logical trunk and their individual active/inactive status. An administrator would poll the member table to confirm all expected ports are actively aggregated; a port unexpectedly reporting inactive would indicate a cable, transceiver, or LACP negotiation fault reducing the LAG's total capacity.

What Can Be Monitored

LAG group membership
LAG mode (static/LACP)
per-member port aggregation status
active vs. configured member port count

Imported Objects

From BRIDGE-MIB

dot1dBasePort

OBJECT-TYPE

From P-BRIDGE-MIB

EnabledStatus

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

From ZYXEL-ES-SMI

esMgmt

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
zyxelLinkAggregation	1.3.6.1.4.1.890.1.15.3.42			The subtree for link aggregation
zyxelAggregationSetup	1.3.6.1.4.1.890.1.15.3.42.1
ENA zyAggregationState	1.3.6.1.4.1.890.1.15.3.42.1.1	EnabledStatus	read-write	Enable/Disable link aggregation control protocol.
INT zyAggregationSysPriority	1.3.6.1.4.1.890.1.15.3.42.1.2	INTEGER	read-write	The system number is to set the priority of an active port using link aggregation control protocol. The smaller the number, the higher the priority level.
zyxelAggregationGroupTable	1.3.6.1.4.1.890.1.15.3.42.1.3		not-accessible	The table contains aggregation group configuration.
zyxelAggregationGroupEntry	1.3.6.1.4.1.890.1.15.3.42.1.3.1		not-accessible	An entry contains aggregation group configuration.
INT zyAggregationGroupIndex	1.3.6.1.4.1.890.1.15.3.42.1.3.1.1	INTEGER	not-accessible	Index of link aggregation group.
ENA zyAggregationGroupState	1.3.6.1.4.1.890.1.15.3.42.1.3.1.2	EnabledStatus	read-write	Enable/Disable link aggregation control protocol on a special group.
ENA zyAggregationGroupDynamicState	1.3.6.1.4.1.890.1.15.3.42.1.3.1.3	EnabledStatus	read-write	Enable/Disable dynamic link aggregation control protocol on a special group.
INT zyAggregationGroupCriteria	1.3.6.1.4.1.890.1.15.3.42.1.3.1.4	INTEGER	read-write	Outgoing traffic distribution type. Packets from the same source and/or to the same destination are sent over the same link within the trunk. By default, the switch uses the srcDstMac distribution type. If the switch is behind a router, the packet's destination or source MAC address will be changed. In this case, set the switch to distribute traffic based on its IP address to make sure port trunking can work properly.
zyxelAggregationPortTable	1.3.6.1.4.1.890.1.15.3.42.1.4		not-accessible	The table contains aggregation port configuration.
zyxelAggregationPortEntry	1.3.6.1.4.1.890.1.15.3.42.1.4.1		not-accessible	An entry contains aggregation port configuration.
INT zyAggregationPortGroup	1.3.6.1.4.1.890.1.15.3.42.1.4.1.1	INTEGER	read-write	Trunk group which a port belongs.
INT zyAggregationPortDynamicStateTimeout	1.3.6.1.4.1.890.1.15.3.42.1.4.1.2	INTEGER	read-write	This timeout is the time interval bEtween the individual port exchanges of LACP packets in order to check that the peer port in the trunk group is still up.
ENA zyAggregationAutoLacpState	1.3.6.1.4.1.890.1.15.3.42.1.5	EnabledStatus	read-write	Enable/Disable Automatic link aggregation control protocol.
zyxelAggregationStatus	1.3.6.1.4.1.890.1.15.3.42.2
zyAggregationAutoLacpTable	1.3.6.1.4.1.890.1.15.3.42.2.1		not-accessible	The table contains auto-lacp port configuration.
zyAggregationAutoLacpEntry	1.3.6.1.4.1.890.1.15.3.42.2.1.1		not-accessible	An entry contains auto-lacp port configuration.
INT zyAggregationAutoLacpTrunkGroup	1.3.6.1.4.1.890.1.15.3.42.2.1.1.1	INTEGER	read-only	Trunk group which a port belongs.
STR zyAggregationAutoLacpRemoteChassisId	1.3.6.1.4.1.890.1.15.3.42.2.1.1.2	DisplayString	read-only	This is the chassis id of the remote device.
INT zyAggregationAutoLacpRemotePort	1.3.6.1.4.1.890.1.15.3.42.2.1.1.3	INTEGER	read-only	This is the connected port of the remote device.

RFC description

Manages link aggregation and LACP (Link Aggregation Control Protocol) configuration for ZyXEL switches.

Start monitoring ZyXEL managed switch (LACP/static link-aggregation member-port 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 ZYXEL-LAG-MIB

What Is ZYXEL-LAG-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description