All MIBs › Dell-VRTX-BRGMACSWITCH-MIB
Organization: Dell
Last Updated: 2007-01-02
Category: Technology: Bridging, Vendor: Dell
Description:
Manages MAC address table and bridging forwarding database for the Dell VRTX switch module.
Imported Objects
From Dell-VRTX-MIB
| rnd | MODULE-IDENTITY |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From SNMPv2-TC
| TruthValue |
What Is Dell-VRTX-BRGMACSWITCH-MIB?
Dell-VRTX-BRGMACSWITCH-MIB is a Dell private MIB for the VRTX chassis switch module that manages the bridging/MAC address forwarding database, including table size limits, aging behavior, and spanning tree participation. It exposes the switch's MAC table version and maximum table size, counts of dynamically learned entries, old-entry deletion mode, spanning tree enable state, and trap thresholds (yellow/red boundary levels) with associated trap counters for MAC table utilization. This MIB is directly useful for monitoring hardware/software forwarding health: tracking rlBrgMacSwDynamicTables against rlBrgMacSwMaxTableNumber reveals how close the switch is to MAC table exhaustion, and the yellow/red boundary trap objects (rlBrgMacSwYellowBoundary/rlBrgMacSwRedBoundary with rlBrgMacSwOperTrapCount) provide an early-warning alarm mechanism before a table-full condition causes flooding. It is a Dell-specific private MIB but models concepts standardized in IEEE 802.1D/802.1Q bridging and typically complements a standard bridge MIB for full forwarding-database visibility. It is deployed on Dell PowerEdge VRTX chassis switch modules to keep MAC learning and spanning tree operation healthy. Engineers can download the Dell-VRTX-BRGMACSWITCH-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in Dell-VRTX-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.
What Can Be Monitored
- MAC address table utilization vs. max size
- MAC table yellow/red threshold alarms
- spanning tree enable status
- old-entry deletion/aging mode
- MAC table trap counts and frequency
Supported Devices
- Dell PowerEdge VRTX chassis switch module
Monitoring Examples
An admin would poll rlBrgMacSwDynamicTables against rlBrgMacSwMaxTableNumber to see how full the MAC address table is, and check whether rlBrgMacSwYellowBoundary or rlBrgMacSwRedBoundary thresholds have been crossed, which would raise rlBrgMacSwTrapEnable-gated alerts. Rising rlBrgMacSwOperTrapCount relative to rlBrgMacSwAdminTrapFrequency indicates the table is repeatedly approaching capacity, a sign of a MAC flooding event or an overly large flat L2 domain. Checking rlBrgMacSwSpanningTree confirms STP is active, which is critical context when diagnosing a sudden MAC table churn from a loop.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| rlBrgMacSwitch | 1.3.6.1.4.1.89.50 | This private MIB module defines Switching Parameters private MIBs. | ||
| INT rlBrgMacSwVersion | 1.3.6.1.4.1.89.50.1 | INTEGER | read-only | MIB's version, the current version is 2. |
| INT rlBrgMacSwMaxTableNumber | 1.3.6.1.4.1.89.50.2 | INTEGER | read-only | Maximum number of MAC Tables supported by the device. |
| INT rlBrgMacSwDynamicTables | 1.3.6.1.4.1.89.50.3 | INTEGER | read-only | Specifies whether the device supports port dynamic MAC tables. |
| INT rlBrgMacSwOldEntryDeleteMode | 1.3.6.1.4.1.89.50.5 | 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 | 1.3.6.1.4.1.89.50.6 | INTEGER | read-only | Specifies whether the device supports port the Spanning Tree Protocol. |
| INT rlBrgMacSwKeyType | 1.3.6.1.4.1.89.50.7 | 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 | 1.3.6.1.4.1.89.50.8 | INTEGER | read-write | The yellow boundary. |
| INT rlBrgMacSwRedBoundary | 1.3.6.1.4.1.89.50.9 | INTEGER | read-write | The yellow boundary. |
| T/F rlBrgMacSwTrapEnable | 1.3.6.1.4.1.89.50.10 | TruthValue | read-write | This variable indicates whether to create a SNMP trap if adding dynamic mac failed due to full hash chain. |
| INT rlBrgMacSwOperTrapCount | 1.3.6.1.4.1.89.50.11 | 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 | 1.3.6.1.4.1.89.50.12 | 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
Dell VRTX bridge MAC switching parameters and MAC table management for network switching.
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