DLINK-3100-BRGMACSWITCH-MIB

All MIBs › DLINK-3100-BRGMACSWITCH-MIB

Organization: Dlink, Inc. Dlink Semiconductor, Inc.

Last Updated: 2007-01-02

Category: Technology: Bridging, Technology: Switching/L2, Technology: VLAN, Vendor: D-Link

Description: D-Link 3100 bridge MAC switching MIB providing objects for MAC address table management and bridge switching configuration.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock 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.

What Is DLINK-3100-BRGMACSWITCH-MIB?

DLINK-3100-BRGMACSWITCH-MIB is a D-Link private enterprise MIB for the DES/DGS-3100 series switches, covering bridge MAC address table switching parameters. It exposes configuration data governing how the switch's MAC address table behaves, including the maximum number of dynamic MAC table entries, aging/deletion mode for old entries, spanning tree participation, and trap thresholds tied to MAC table utilization. Its monitoring role centers on software/table-capacity status rather than physical sensors: rlBrgMacSwDynamicTables and rlBrgMacSwMaxTableNumber reveal how full the dynamic MAC table is relative to its configured maximum, while rlBrgMacSwYellowBoundary/rlBrgMacSwRedBoundary and rlBrgMacSwTrapEnable define thresholds at which the switch raises warning traps, and rlBrgMacSwOperTrapCount tracks how many such traps have actually fired. It is a vendor-proprietary extension layered on top of the standard bridge MIB (RFC 4188/BRIDGE-MIB) MAC-table concept without replacing it. It is deployed on D-Link 3100-series managed switches in SMB and enterprise LAN environments needing MAC table capacity and switching-parameter monitoring. Engineers can download the DLINK-3100-BRGMACSWITCH-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINK-3100-BRGMACSWITCH-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

D-Link DES/DGS-3100 series managed switches

Monitoring Examples

An administrator would poll rlBrgMacSwDynamicTables against rlBrgMacSwMaxTableNumber to see how close the switch's dynamic MAC table is to exhaustion, which would explain flooding or dropped frames if the table is full. Checking rlBrgMacSwYellowBoundary and rlBrgMacSwRedBoundary against current table usage, along with rlBrgMacSwOperTrapCount, shows whether the switch has already crossed a capacity warning threshold and generated traps. rlBrgMacSwSpanningTree and rlBrgMacSwOldEntryDeleteMode would be checked when investigating unexpected topology changes or unusually fast/slow MAC entry aging behavior.

What Can Be Monitored

dynamic MAC table entry count
MAC table capacity thresholds
MAC table warning trap count
spanning tree participation
old MAC entry deletion mode
trap enable/frequency configuration

Imported Objects

From DLINK-3100-MIB

rnd	MODULE-IDENTITY

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlBrgMacSwitch	1.3.6.1.4.1.171.10.94.89.89.50			This private MIB module defines Switching Parameters private MIBs.
INT rlBrgMacSwVersion	1.3.6.1.4.1.171.10.94.89.89.50.1	INTEGER	read-only	MIB's version, the current version is 2.
INT rlBrgMacSwMaxTableNumber	1.3.6.1.4.1.171.10.94.89.89.50.2	INTEGER	read-only	Maximum number of MAC Tables supported by the device.
INT rlBrgMacSwDynamicTables	1.3.6.1.4.1.171.10.94.89.89.50.3	INTEGER	read-only	Specifies whether the device supports port dynamic MAC tables.
INT rlBrgMacSwOldEntryDeleteMode	1.3.6.1.4.1.171.10.94.89.89.50.5	INTEGER	read-only	The method used to delete old unused entries refresh_flag: The high level sets a flag when it adds or updates an entry, the Switch clears the flag each time, when it learns the station once more. aging_flag: The high level clears a flag when it adds or updates an entry, the Switch sets the flag each time, when it learns the station once more. aging_time: The high level defines a timeout, the Switch sends a message to the high level each time when the station doesn't send messages during interval between timeout and 2*timeout. Boundaries: The Switch doesn't support any mechanism, and the high level uses two boundaries: red and yellow. When the number of entries exceeds the red boundary, the high level deletes the oldest entries.
INT rlBrgMacSwSpanningTree	1.3.6.1.4.1.171.10.94.89.89.50.6	INTEGER	read-only	Specifies whether the device supports port the Spanning Tree Protocol.
INT rlBrgMacSwKeyType	1.3.6.1.4.1.171.10.94.89.89.50.7	INTEGER	read-only	Specified the used MAC Address Table kye format: macOnly: One global MAC Address Table per device (leaky VLANs). tagAndMac: MAC Address Table per each VLAN (strick VLANs).
INT rlBrgMacSwYellowBoundary	1.3.6.1.4.1.171.10.94.89.89.50.8	INTEGER	read-write	The yellow boundary.
INT rlBrgMacSwRedBoundary	1.3.6.1.4.1.171.10.94.89.89.50.9	INTEGER	read-write	The yellow boundary.
T/F rlBrgMacSwTrapEnable	1.3.6.1.4.1.171.10.94.89.89.50.10	TruthValue	read-write	This variable indicates whether to create a SNMP trap if adding dynamic mac failed due to full hash chain.
INT rlBrgMacSwOperTrapCount	1.3.6.1.4.1.171.10.94.89.89.50.11	INTEGER	read-only	This variable indicates the trap counter status (i.e. number of received MAC addresses since the last trap sent that haven't been inserted into the hash). It is relevant only when trap is enabled.
INT rlBrgMacSwAdminTrapFrequency	1.3.6.1.4.1.171.10.94.89.89.50.12	INTEGER	read-write	This variable indicates the minimal frequency (in seconds) of sending a trap. It is relevant only when trap is enabled.

RFC description

Controls MAC bridge switching parameters on D-Link 3100 series switches.

Start monitoring D-Link DES/DGS-3100 switches 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 DLINK-3100-BRGMACSWITCH-MIB

What Is DLINK-3100-BRGMACSWITCH-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description