NMS-VLAN-EXT-MIB

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Category: VLAN Management

Description: Manages NMS Communications extended VLAN configuration including port membership and VLAN attributes.

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What Is NMS-VLAN-EXT-MIB?

NMS-VLAN-EXT-MIB is a private MIB from NMS Communications extending standard VLAN management with vendor-specific configuration objects, such as VLAN global transport mode, port membership, and VLAN attribute settings, on NMS Communications platforms (noted as not supported on the S8500 series). It exposes configuration-oriented VLAN data rather than performance or environmental readings. Its monitoring relevance is primarily configuration/software status verification, confirming VLAN transport mode and membership settings are applied as expected, useful when diagnosing Layer 2 segmentation or connectivity issues tied to VLAN misconfiguration. It functions as an extension alongside the standard IETF VLAN/bridge MIB model, adding NMS-specific attributes on top. It is deployed on NMS Communications media/signaling processing platforms that require VLAN segmentation for voice/media traffic isolation, where NMS-VLAN-EXT-MIB SNMP monitoring helps confirm VLAN transport mode and membership settings remain correctly applied.

IPNetwork Monitor allows you to monitor SNMP objects defined in NMS-VLAN-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

NMS Communications media/signaling platforms (excluding S8500 series)

Monitoring Examples

No specific object/table names were provided in the source data for this MIB, so concrete instance names cannot be cited; based on its description, an administrator would typically poll VLAN transport-mode and port-membership objects to confirm a device's VLAN configuration matches intended network segmentation, useful for diagnosing traffic isolation problems.

What Can Be Monitored

VLAN global transport mode
VLAN port membership/attributes

Imported Objects

From NMS-SMI

nmsMgmt	OBJECT-IDENTITY
nmslocal	OBJECT-IDENTITY

From P-BRIDGE-MIB

EnabledStatus

From Q-BRIDGE-MIB

VlanIndex

From RFC1155-SMI

Counter
IpAddress

From RFC1213-MIB

DisplayString
PhysAddress
ifIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
nmsvlanExt	1.3.6.1.4.1.11606.10.9.182
INT dot1qVlanTransparentMode	1.3.6.1.4.1.11606.10.9.182.1	INTEGER	read-write	Vlan global transport mode.Not supported in S8500 series.
OCT dot1qVlanUntagged	1.3.6.1.4.1.11606.10.9.182.2	OCTET STRING	read-write	Vlan global transport mode.Not supported in S8500 series.
dot1qPortVlanTable	1.3.6.1.4.1.11606.10.9.182.3		not-accessible	A table of dot1qVlan operation.
dot1qPortVlanTableEntry	1.3.6.1.4.1.11606.10.9.182.3.1		not-accessible	A collection of dot1qVlan operation.
VLA dot1qPvid	1.3.6.1.4.1.11606.10.9.182.3.1.1	VlanIndex	read-write	The PVID, the VLAN ID assigned to untagged frames or Priority-Tagged frames received on this port.
INT dot1qPortType	1.3.6.1.4.1.11606.10.9.182.3.1.2	INTEGER	read-only	value for port vlan type.
INT dot1qPortSwitchingMode	1.3.6.1.4.1.11606.10.9.182.3.1.3	INTEGER	read-write	value for port vlan mode.
OCT dot1qPortAllowedVlans	1.3.6.1.4.1.11606.10.9.182.3.1.4	OCTET STRING	read-write	value for port allowed vlan list.
OCT dot1qPortUntaggedVlans	1.3.6.1.4.1.11606.10.9.182.3.1.5	OCTET STRING	read-write	value for port untagged vlan list.
INT dot1qPortAcceptableFrameTypes	1.3.6.1.4.1.11606.10.9.182.3.1.6	INTEGER	read-write	When this is admitOnlyVlanTagged(2) the device will discard untagged frames or Priority-Tagged frames received on this port. When admitAll(1), untagged frames or Priority-Tagged frames received on this port will be accepted and assigned to the PVID for this port. This control does not affect VLAN independent BPDU frames, such as GVRP and STP. It does affect VLAN dependent BPDU frames, such as GMRP.
T/F dot1qPortIngressFiltering	1.3.6.1.4.1.11606.10.9.182.3.1.7	TruthValue	read-write	When this is true(1) the device will discard incoming frames for VLANs which do not include this Port in its Member set. When false(2), the port will accept all incoming frames. This control does not affect VLAN independent BPDU frames, such as GVRP and STP. It does affect VLAN dependent BPDU frames, such as GMRP.
ENA dot1qPortGvrpStatus	1.3.6.1.4.1.11606.10.9.182.3.1.8	EnabledStatus	read-write	The state of GVRP operation on this port. The value enabled(1) indicates that GVRP is enabled on this port, as long as dot1qGvrpStatus is also enabled for this device. When disabled(2) but dot1qGvrpStatus is still enabled for the device, GVRP is disabled on this port: any GVRP packets received will be silently discarded and no GVRP registrations will be propagated from other ports. This object affects all GVRP Applicant and Registrar state machines on this port. A transition from disabled(2) to enabled(1) will cause a reset of all GVRP state machines on this port.
C64 dot1qPortGvrpFailedRegistrations	1.3.6.1.4.1.11606.10.9.182.3.1.9	Counter64	read-only	The total number of failed GVRP registrations, for any reason, on this port.
PHY dot1qPortGvrpLastPduOrigin	1.3.6.1.4.1.11606.10.9.182.3.1.10	PhysAddress	read-only	The Source MAC Address of the last GVRP message received on this port.
INT dot1qUplinkPortTpid	1.3.6.1.4.1.11606.10.9.182.3.1.11	INTEGER	read-write	Default value is 0x8100. Note: only when the value of 'dot1qPortSwitchingMode' is 'Dot1qTunnelUplink', this value is available.
dot1qPortVlanTranslateTable	1.3.6.1.4.1.11606.10.9.182.4		not-accessible	A table of dot1q Port Vlan Translate Table operation.
dot1qPortVlanTranslateTableEntry	1.3.6.1.4.1.11606.10.9.182.4.1		not-accessible	A collection of dot1qVlan Translate operation. Attention: When VLAN is created, dttTeMode,dttTeOldVlanId dttTeNewVlanId should be provided, and dttTePri is optional. When item is deleted, only dttTeMode and dttTeOldVlanId needs to provide.
INT dttTeMode	1.3.6.1.4.1.11606.10.9.182.4.1.1	INTEGER	read-write	value for port vlan translation item mode. The default value is DttTeModeQinQ(2).
INT dttTeOldVlanId	1.3.6.1.4.1.11606.10.9.182.4.1.2	INTEGER	read-only	value for port old vlan id to be translated.
INT dttTeNewVlanId	1.3.6.1.4.1.11606.10.9.182.4.1.3	INTEGER	read-write	value for port new vlan id to be translated.
INT dttTePri	1.3.6.1.4.1.11606.10.9.182.4.1.4	INTEGER	read-write	value for port new vlan id priority to be translated.
ROW dttTeRowStatus	1.3.6.1.4.1.11606.10.9.182.4.1.5	RowStatus	read-create	value for port vlan translation row status.
INT dot1qTunnel	1.3.6.1.4.1.11606.10.9.182.5	INTEGER	read-write	Dot1qTunnel enable operation. enabled(1),disabled(2). Default value is disable.

RFC description

NMS extended VLAN MIB offering advanced VLAN configuration and port-based VLAN management features.

Start monitoring NMS Communications media/signaling platform, excluding S8500 series (VLAN extension) 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 NMS-VLAN-EXT-MIB

What Is NMS-VLAN-EXT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description