NMS-ERPS-MIB

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Category: Switch Management

Description: Manages NMS Communications Ethernet Ring Protection Switching protocol state and configuration per ring.

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What Is NMS-ERPS-MIB?

NMS-ERPS-MIB is a vendor MIB from NMS Communications that manages Ethernet Ring Protection Switching (ERPS, ITU-T G.8032), a protocol used to provide fast failover on Ethernet ring topologies in metro and access networks. It exposes configuration and state data for each protected ring instance, rooted under the nmsERPS object identified in the sample objects. Its primary monitoring value is fault/protocol status: tracking ring state (e.g., idle, protection, or failed) lets an operator detect a ring break or protection-switch event affecting network resiliency, which is a software/protocol health indicator rather than physical hardware health. ERPS implementations commonly interact with the standard IF-MIB for the underlying ring-port ifIndex references, though this is not explicitly stated in the available description. It is deployed on Ethernet switches and metro Ethernet access nodes from NMS Communications that participate in ring-protected network topologies. Engineers can download the NMS-ERPS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NMS-ERPS-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 Co., Ltd. Ethernet ring switch (ERPS/G.8032 ring protection, vendor unidentified)

Monitoring Examples

An operator would typically poll objects under the nmsERPS subtree, such as per-ring state and control-VLAN identifiers, to confirm each ring is in its normal (idle) protection state; a ring reporting a protection-switch or failed state would indicate a fiber cut or node failure requiring immediate attention. Only the top-level nmsERPS object name is confirmed in the sample data, so specific table names cannot be enumerated further.

What Can Be Monitored

ring protection state
ring failure/protection-switch events
ring configuration status

Imported Objects

From NMS-SMI

nmslocal

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
nmsERPS	1.3.6.1.4.1.11606.10.2.231
INT nmsERPSRings	1.3.6.1.4.1.11606.10.2.231.1	INTEGER	read-only	The number of ethernet ring instances.
INT nmsERPSInconsistenceCheck	1.3.6.1.4.1.11606.10.2.231.2	INTEGER	read-write	A value indicates that the ring-port inconsistence check is enabled or disabled.
INT nmsERPSPduRx	1.3.6.1.4.1.11606.10.2.231.3	INTEGER	read-only	The total number of input PDUs.
INT nmsERPSPduRxDropped	1.3.6.1.4.1.11606.10.2.231.4	INTEGER	read-only	The number of input discarded PDUs.
INT nmsERPSPduTx	1.3.6.1.4.1.11606.10.2.231.5	INTEGER	read-only	The total number of output PDUs.
nmsERPSRingTable	1.3.6.1.4.1.11606.10.2.231.6		not-accessible	A table that contains information of rings.
nmsERPSRingTableEntry	1.3.6.1.4.1.11606.10.2.231.6.1		not-accessible	A table that contains information of rings.
INT nmsERPSRingID	1.3.6.1.4.1.11606.10.2.231.6.1.1	INTEGER	read-only	The index of ring instances.
STR nmsERPSRingNodeID	1.3.6.1.4.1.11606.10.2.231.6.1.2	DisplayString	read-only	The ring node identifier composed of a priority value and the bridge MAC address.
INT nmsERPSRingPorts	1.3.6.1.4.1.11606.10.2.231.6.1.3	INTEGER	read-only	The number of interfaces which are configured in a ring.
INT nmsERPSRingRole	1.3.6.1.4.1.11606.10.2.231.6.1.4	INTEGER	read-only	A value indicates whether one port of the ring node is the Ring protection link(RPL).
INT nmsERPSRingState	1.3.6.1.4.1.11606.10.2.231.6.1.5	INTEGER	read-only	The ring protection state machine value.
INT nmsERPSRingWTR	1.3.6.1.4.1.11606.10.2.231.6.1.6	INTEGER	read-only	This value from the RPL-Owner indicates whether it is Waiting to restore.
INT nmsERPSRingWtrWhile	1.3.6.1.4.1.11606.10.2.231.6.1.7	INTEGER	read-only	The Wait-to-restore timer value, in seconds, which is the time left before the RPL-Owner restores from Protection state.
INT nmsERPSRingSignalFail	1.3.6.1.4.1.11606.10.2.231.6.1.8	INTEGER	read-only	A value indicates if a ring port is failed.
STR nmsERPSRingSending	1.3.6.1.4.1.11606.10.2.231.6.1.9	DisplayString	read-only	The type of PDUs being sent.
STR nmsERPSRingRplOwnerID	1.3.6.1.4.1.11606.10.2.231.6.1.10	DisplayString	read-only	The RPL-Owner's identifier, recorded from a superior discovery PDU.
STR nmsERPSRingRplOwnerMAC	1.3.6.1.4.1.11606.10.2.231.6.1.11	DisplayString	read-only	The RPL-Owner's bridge MAC address, recorded from a NR-RB PDU.
INT nmsERPSRingDiscovering	1.3.6.1.4.1.11606.10.2.231.6.1.12	INTEGER	read-write	A value indicates if the ring discovery process is running.
INT nmsERPSRingDiscoverWhile	1.3.6.1.4.1.11606.10.2.231.6.1.13	INTEGER	read-only	The discovery timer value, in seconds. Remaining time of the discovery process.
INT nmsERPSRingPriorityValue	1.3.6.1.4.1.11606.10.2.231.6.1.14	INTEGER	read-write	The configured ring node priority value. The lowest priority makes a node RPL-Owner in the ring. Available range is from 0 to 61440, in steps of 4096.
INT nmsERPSRingWtrTime	1.3.6.1.4.1.11606.10.2.231.6.1.15	INTEGER	read-write	The configured Wait-to-restore time, in seconds.
INT nmsERPSRingGuardTime	1.3.6.1.4.1.11606.10.2.231.6.1.16	INTEGER	read-write	The configured Guard-time, in 10ms.
INT nmsERPSRingSendTime	1.3.6.1.4.1.11606.10.2.231.6.1.17	INTEGER	read-write	The configured interval of ring protection PDUs, in seconds.
INT nmsERPSRingDiscoveryTime	1.3.6.1.4.1.11606.10.2.231.6.1.18	INTEGER	read-write	The duration configured for discovery process, in seconds.
INT nmsERPSRingDpduInterval	1.3.6.1.4.1.11606.10.2.231.6.1.19	INTEGER	read-write	The configured interval of ring discovery PDUs, in seconds.
INT nmsERPSRingDiscoveryCount	1.3.6.1.4.1.11606.10.2.231.6.1.20	INTEGER	read-only	The total number of discovery process ever started.
INT nmsERPSRingDiscoveryLastDuration	1.3.6.1.4.1.11606.10.2.231.6.1.21	INTEGER	read-only	Runtime of the last discovery process, in 10 ms.
INT nmsERPSRingDiscoveryLastElapsed	1.3.6.1.4.1.11606.10.2.231.6.1.22	INTEGER	read-only	Elapsed time since last discovery started, in seconds.
INT nmsERPSRingAdminStatus	1.3.6.1.4.1.11606.10.2.231.6.1.23	INTEGER	read-create	A read-create value that indicates the configuration status of the ring instance. Set this value to 'enabled' to start the ring or 'disabled' to stop it.
INT nmsERPSRingPort1	1.3.6.1.4.1.11606.10.2.231.6.1.24	INTEGER	read-create	The interface index of the first ring port. Value 0 indicates that the first port is not configured. This value is read-write.
INT nmsERPSRingPort1AdminType	1.3.6.1.4.1.11606.10.2.231.6.1.25	INTEGER	read-write	The configured type of the first ring port. Set this value to 'rpl' to configure the Ring-Protection-Link.
INT nmsERPSRingPort1OperType	1.3.6.1.4.1.11606.10.2.231.6.1.26	INTEGER	read-only	The running type of the first ring port.
INT nmsERPSRingPort1State	1.3.6.1.4.1.11606.10.2.231.6.1.27	INTEGER	read-only	Forwarding state of the first ring port.
INT nmsERPSRingPort1Status	1.3.6.1.4.1.11606.10.2.231.6.1.28	INTEGER	read-only	Link status of the first ring port.
INT nmsERPSRingPort2	1.3.6.1.4.1.11606.10.2.231.6.1.29	INTEGER	read-create	The interface index of the second ring port. Value 0 indicates that the second port is not configured. This value is read-write..
INT nmsERPSRingPort2AdminType	1.3.6.1.4.1.11606.10.2.231.6.1.30	INTEGER	read-write	The configured type of the second ring port. Set this value to 'rpl' to configure the Ring-Protection-Link.
INT nmsERPSRingPort2OperType	1.3.6.1.4.1.11606.10.2.231.6.1.31	INTEGER	read-only	The running type of the second ring port.
INT nmsERPSRingPort2State	1.3.6.1.4.1.11606.10.2.231.6.1.32	INTEGER	read-only	Forwarding state of the second ring port.
INT nmsERPSRingPort2Status	1.3.6.1.4.1.11606.10.2.231.6.1.33	INTEGER	read-only	Link status of the second ring port.
nmsERPSRingPortTable	1.3.6.1.4.1.11606.10.2.231.7		not-accessible	A table that contains informations of ring ports.
nmsERPSRingPortTableEntry	1.3.6.1.4.1.11606.10.2.231.7.1		not-accessible	A table that contains informations of ring ports.
INT nmsERPSRingPortRingID	1.3.6.1.4.1.11606.10.2.231.7.1.1	INTEGER	read-only	The index of ring instance, in which this port is configured.
INT nmsERPSRingPort	1.3.6.1.4.1.11606.10.2.231.7.1.2	INTEGER	read-only	Interface index of the ring port.
INT nmsERPSRingPortAdminType	1.3.6.1.4.1.11606.10.2.231.7.1.3	INTEGER	read-only	A value indicates that if the port is configured as the Ring Protection Link(RPL).
INT nmsERPSRingPortOperType	1.3.6.1.4.1.11606.10.2.231.7.1.4	INTEGER	read-only	A value indicates that if the port is running as the Ring Protection Link(RPL). This value may be different with the value of 'nmsERPSRingPortAdminType'
INT nmsERPSRingPortState	1.3.6.1.4.1.11606.10.2.231.7.1.5	INTEGER	read-only	State of a ring port, forwarding or blocking.
INT nmsERPSRingPortStatus	1.3.6.1.4.1.11606.10.2.231.7.1.6	INTEGER	read-only	Link status of a ring port.
INT nmsERPSRingPortForwards	1.3.6.1.4.1.11606.10.2.231.7.1.7	INTEGER	read-only	The number of times this port transitioned to forwarding state.
INT nmsERPSRingPortForwardLastElapsed	1.3.6.1.4.1.11606.10.2.231.7.1.8	INTEGER	read-only	Elapsed time since the port became forwarding, in seconds.
INT nmsERPSRingPortRx	1.3.6.1.4.1.11606.10.2.231.7.1.9	INTEGER	read-only	The number of received PDUs on this port.
INT nmsERPSRingPortTx	1.3.6.1.4.1.11606.10.2.231.7.1.10	INTEGER	read-only	The number of transmitted PDUs on this port.
nmsERPSRingNotifications	1.3.6.1.4.1.11606.10.2.231.8
NTF nmsERPSRingRoleChange	1.3.6.1.4.1.11606.10.2.231.8.1			The notification is generated when ring node role changes.
NTF nmsERPSRingStateChange	1.3.6.1.4.1.11606.10.2.231.8.2			The notification is generated when a RPL-Owner detects that the state of ring changed.

RFC description

Monitors Ethernet Ring Protection Switching (ERPS) operation and consistency checks on network rings.

Start monitoring nms Co., Ltd. Ethernet ring switch (ERPS/G.8032 ring protection, vendor unidentified) 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-ERPS-MIB

What Is NMS-ERPS-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description