ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-MIB

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Organization: Enterasys Networks, Inc

Last Updated: 2013-02-15

Category: Technology: VLAN, Vendor: Enterasys/Cabletron

Description: Enterasys Networks proprietary extension to the IEEE8021-Q-BRIDGE-MIB for VLAN and filter database management.

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What Is ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-MIB?

ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-MIB is an Enterasys Networks proprietary extension to the standard IEEE8021-Q-BRIDGE-MIB, adding vendor-specific objects for VLAN registration protocol (MVRP) control and bridge forwarding-database capacity management on Enterasys switches. It exposes configuration data such as MVRP-restricted VLANs and per-port VLAN mappings, alongside status/error data like MVRP VID translation error counts and forwarding-database (FDB) entry capacity. This is useful for monitoring the software health of the bridging/VLAN subsystem: FDB max/operational entry counts reveal when a switch's MAC address table is approaching exhaustion, and MVRP translation error counters reveal misconfigured or malfunctioning VLAN registration on a port. It explicitly depends on and extends the standard IEEE8021-Q-BRIDGE-MIB (IEEE 802.1Q). It is deployed on Enterasys (later Extreme Networks) enterprise switches using MVRP-based dynamic VLAN registration, and administrators can download the ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-MIB file to load into their MIB browser for reference.

IPNetwork Monitor allows you to monitor SNMP objects defined in ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-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

Enterasys/Extreme Networks enterprise Ethernet switches

Monitoring Examples

The etsysIeee8021QVlanMvrpRestrictedTable/Entry (indexed by etsysIeee8021QVlanMvrpRestrictedComponentId and Index) tracks which VLANs are administratively restricted from MVRP, while etsysIeee8021QBridgeMibExtPortVlanTable/Entry tracks per-port VLAN associations. An administrator would poll etsysIeee8021QBridgePortMvrpRxVidTranslationErrors/TxVidTranslationErrors and etsysIeee8021QBridgeFdbOperMaxNumEntries to detect a port experiencing VID translation faults or a switch approaching its forwarding-database capacity limit.

What Can Be Monitored

MVRP restricted VLAN status
port-to-VLAN mapping
MVRP VID translation errors (RX/TX)
bridge FDB maximum/operational entry capacity

Imported Objects

From ENTERASYS-MIB-NAMES

etsysModules

OBJECT-IDENTITY

From IEEE8021-BRIDGE-MIB

ieee8021BridgeBasePortEntry

OBJECT-TYPE

From IEEE8021-TC-MIB

IEEE8021PbbComponentIdentifier
IEEE8021VlanIndex

From P-BRIDGE-MIB

EnabledStatus

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using etsysIeee8021QBridgePortMvrpRxVidTranslationErrors OID:

Select an Enterasys Networks switch (legacy, later Extreme Networks) (802.1Q Bridge MIB extensions, MVRP/FDB) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type etsysIeee8021QBridgePortMvrpRxVidTranslationErrors into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The total number of receive errors for MVRP due to an incompatible VID translation configuration on a port. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
etsysIeee8021QBridgeMibExtMIB	1.3.6.1.4.1.5624.1.2.88			This MIB module defines a portion of the SNMP MIB under the Enterasys Networks enterprise OID pertaining to proprietary extensions to the IEEE8021-Q-BRIDGE-MIB.
etsysIeee8021QBridgeMibExtObjects	1.3.6.1.4.1.5624.1.2.88.1
etsysIeee8021QBridgeMibExtMvrpBranch	1.3.6.1.4.1.5624.1.2.88.1.1
etsysIeee8021QVlanMvrpRestrictedTable	1.3.6.1.4.1.5624.1.2.88.1.1.1		not-accessible	A table containing per VLAN control and status information for MVRP VLAN configuration in the device.
etsysIeee8021QVlanMvrpRestrictedEntry	1.3.6.1.4.1.5624.1.2.88.1.1.1.1		not-accessible	Information controlling proprietary VLAN configuration for MVRP on a device.
OID etsysIeee8021QVlanMvrpRestrictedComponentId	1.3.6.1.4.1.5624.1.2.88.1.1.1.1.1	IEEE8021PbbComponentIdentifier	not-accessible	The PBB component identifier to which this entry's restricted MVRP VLAN attribute status applies.
IEE etsysIeee8021QVlanMvrpRestrictedIndex	1.3.6.1.4.1.5624.1.2.88.1.1.1.1.2	IEEE8021VlanIndex	not-accessible	The VLAN to which this entry's restricted MVRP VLAN attribute status applies.
ENA etsysIeee8021QVlanMvrpRestrictedStatus	1.3.6.1.4.1.5624.1.2.88.1.1.1.1.3	EnabledStatus	read-write	The state of restricted MVRP operation for this VLAN. The value enabled(1) indicates that restricted MVRP operation is enabled for this VLAN. This object affects MVRP Applicant and Registrar state machines for this VLAN on all ports. If restricted MVRP is enabled for a VLAN the following rules are applied: 1. If MVRP is globally enabled and 2. If MVRP is enabled at the port level, then 3. Any ports that were members of the dot1qVlanCurrentEgressPorts table due to MVRP will signal to remove this registration and no further registration requests received in MVRP PDUs for this VLAN will be processed and 4. Any ports that were propagating registration information for this VLAN will cease propagation and all further MVRP PDUs transmitted after the initial withdrawal attempt will not include event notifications for this VLAN.
etsysIeee8021QBridgeMibExtPortVlanBranch	1.3.6.1.4.1.5624.1.2.88.1.2
etsysIeee8021QBridgeMibExtPortVlanTable	1.3.6.1.4.1.5624.1.2.88.1.2.1		not-accessible	A table of bridge port MRP timer control information.
etsysIeee8021QBridgeMibExtPortVlanEntry	1.3.6.1.4.1.5624.1.2.88.1.2.1.1		not-accessible	A conceptual row in etsysIeee8021QBridgeMibExtPortVlanTable.
C64 etsysIeee8021QBridgePortMvrpRxVidTranslationErrorsEx	1.3.6.1.4.1.5624.1.2.88.1.2.1.1.1	Counter64	read-only	The total number of receive errors for MVRP due to an incompatible VID translation configuration on a port. This error occurs when an MVRPDU is received on a port which has a VID translation table configured and the MVRPDU contains messages for multiple local VIDs that map to the same relay VID. The MVRPDU is discarded when this error is detected.
C64 etsysIeee8021QBridgePortMvrpTxVidTranslationErrors	1.3.6.1.4.1.5624.1.2.88.1.2.1.1.2	Counter64	read-only	The total number of transmit errors for MVRP due to an incompatible VID translation configuration on a port. This error occurs when an MVRPDU is being encoded for transmit on a port which has a VID translation table configured and the MVRPDU has messages for multiple local VIDs that map to the same relay VID. The MVRPDU is discarded when this error occurs.
etsysIeee8021QBridgeMibExtFdbBranch	1.3.6.1.4.1.5624.1.2.88.1.3
etsysIeee8021QBridgeFdb	1.3.6.1.4.1.5624.1.2.88.1.3.1
BIT etsysIeee8021QBridgeFdbMaxNumEntriesCapabilities	1.3.6.1.4.1.5624.1.2.88.1.3.1.1	Bits	read-only	Indicates the values of maximum number of entries supported by the hardware. The possible values are as follows: fdbMaxNumEntries4K(0) - The maximum number of entries in the filter database is 4K (4096). fdbMaxNumEntries8K(1) - The maximum number of entries in the filter database is 8K (8192). fdbMaxNumEntries16K(2) - The maximum number of entries in the filter database is 16K (16384). fdbMaxNumEntries32K(3) - The maximum number of entries in the filter database is 32K (32768). fdbMaxNumEntries64K(4) - The maximum number of entries in the filter database is 64K (65536). fdbMaxNumEntries128K(5) - The maximum number of entries in the filter database is 128K (131072).
ETS etsysIeee8021QBridgeFdbMaxNumEntries	1.3.6.1.4.1.5624.1.2.88.1.3.1.2	EtsysIeee8021QBridgeFdbEntries	read-write	Indicates the configured maximum number of entries in the filter database.
ETS etsysIeee8021QBridgeFdbOperMaxNumEntries	1.3.6.1.4.1.5624.1.2.88.1.3.1.3	EtsysIeee8021QBridgeFdbEntries	read-only	Indicates the operational maximum number of entries in the filter database.
etsysIeee8021QBridgeMibExtConformance	1.3.6.1.4.1.5624.1.2.88.2
etsysIeee8021QBridgeMibExtGroups	1.3.6.1.4.1.5624.1.2.88.2.1
etsysIeee8021QBridgeMibExtMvrpGroup	1.3.6.1.4.1.5624.1.2.88.2.1.1			A collection of objects providing device level control over the ability of MVRP to add and remove unconfigured ports to the egress list of particular VLANs.
etsysIeee8021QBridgeMibExtPortVlanGroup	1.3.6.1.4.1.5624.1.2.88.2.1.2			A collection of objects providing statistics on errors detected by MVRP that identify incompatible configuration of the VID translation table.
etsysIeee8021QBridgeMibExtFdbGroup	1.3.6.1.4.1.5624.1.2.88.2.1.3			A collection of objects providing information about the maximum number of entries in the filter database.
etsysIeee8021QBridgeMibExtCompliances	1.3.6.1.4.1.5624.1.2.88.2.2
etsysIeee8021QBridgeMibExtMvrp	1.3.6.1.4.1.5624.1.2.88.2.2.1			The compliance statement for devices that support Enterasys extensions to IEEE8021-Q-BRIDGE-MIB.
etsysIeee8021QBridgeMibExtPortVlan	1.3.6.1.4.1.5624.1.2.88.2.2.2			The compliance statement for devices that support Enterasys extensions to IEEE8021-Q-BRIDGE-MIB.
etsysIeee8021QBridgeMibExtFdb	1.3.6.1.4.1.5624.1.2.88.2.2.3			The compliance statement for devices that support Enterasys extensions to IEEE8021-Q-BRIDGE-MIB.

RFC description

Extensions to IEEE 802.1Q VLAN bridge functionality for Enterasys switches.

Start monitoring Enterasys Networks switch (legacy, later Extreme Networks) (802.1Q Bridge MIB extensions, MVRP/FDB) 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 ENTERASYS-IEEE8021-Q-BRIDGE-MIB-EXT-MIB