RING-MIB

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Organization: Coriolis Networks

Last Updated: 2000-07-27

Category: Routing

Description: Manages Coriolis Networks SONET/SDH ring topology, protection switching, and node configuration.

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What Is RING-MIB?

RING-MIB is a vendor-specific MIB from Coriolis Networks for managing SONET/SDH ring network topologies, covering ring protection switching and per-node ring configuration. It exposes data about ring membership, node roles within the ring, and protection-switching state used to maintain resilient optical transport circuits. Its primary monitoring value is around fault and topology status rather than general hardware sensors: detecting when a ring has switched to protection mode, when a node has dropped out of the ring, or when topology has changed unexpectedly, all of which signal a fiber cut or equipment failure in the transport path. It builds on general SONET/SDH management concepts (akin to the standard SONET-MIB) while adding Coriolis-specific ring-topology semantics. It is deployed in optical transport networks where Coriolis SONET/SDH ring equipment provides resilient point-to-multipoint or ring-based transport for carrier or enterprise backbone links. Engineers can download the RING-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RING-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

Coriolis Networks SONET/SDH ring transport equipment

Monitoring Examples

An operator would poll the ring's node and topology status objects to confirm every expected node is present in the ring and that protection switching is in its normal (non-switched) state. If a node's status indicates it has fallen out of the ring or protection switching has activated, that signals a fiber break or node failure requiring immediate field dispatch to restore full ring redundancy.

What Can Be Monitored

ring topology and node membership
protection switching state
ring node configuration
SONET/SDH ring fault status

Imported Objects

From CORIOLIS-MIB

coriolisMibs	OBJECT-IDENTITY
ring	OBJECT-IDENTITY

From DEVICE-MIB

chassisElemReachStatus	OBJECT-TYPE
chassisIpAddr	OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

IpAddress

From RFC1213-MIB

DisplayString
sysName

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using cfgRingTdmTrafficKbits OID:

Select a Coriolis Networks SONET/SDH transport equipment 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 cfgRingTdmTrafficKbits 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. It reports tDM traffic transmitted on ring since last reset. 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 sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
NTF ringOperStatusChange	1.3.6.1.4.1.5812.0.3			change in operational status of a configured logical ring
NTF neReachabilityChange	1.3.6.1.4.1.5812.0.4			change in the reachability status of NE
NTF lambdaStatusChange	1.3.6.1.4.1.5812.0.5			change in the fiber status of the ring
NTF ringProtoErrorStatusChange	1.3.6.1.4.1.5812.0.6			Ring error detected/cleared
NTF ringProtoWarnStatusChange	1.3.6.1.4.1.5812.0.7			Ring warning detected/cleared
NTF ringTopoChange	1.3.6.1.4.1.5812.0.56			Ring topology changed
INT actPhyRingCount	1.3.6.1.4.1.5812.4.1	INTEGER	read-only	Actual number of physical rings passing through the device
actPhyRingTable	1.3.6.1.4.1.5812.4.2		not-accessible	The actual physical ring table. The number of entries in this table is given by actPhyRingCount
actPhyRingEntry	1.3.6.1.4.1.5812.4.2.1		not-accessible	Entry containing information about the attributes of actual physical rings passing through a device
INT phyRingSlotNo	1.3.6.1.4.1.5812.4.2.1.1	INTEGER	read-only	The slot number for the physical ring
INT phyRingPortNo	1.3.6.1.4.1.5812.4.2.1.2	INTEGER	read-only	The port number of the physical ring
INT actLogRingCount	1.3.6.1.4.1.5812.4.3	INTEGER	read-only	Actual number of logical rings passing through the device
actLogRingTable	1.3.6.1.4.1.5812.4.4		not-accessible	The actual logical ring table. The number of entries in this table is given by actLogRingCount
actLogRingEntry	1.3.6.1.4.1.5812.4.4.1		not-accessible	Entry containing information about the attributes of actual logical rings passing through a device
INT logRingVPortNo	1.3.6.1.4.1.5812.4.4.1.1	INTEGER	read-only	The lambda number of the logical ring if applicable, else 0
INT logRingElemCount	1.3.6.1.4.1.5812.4.4.1.2	INTEGER	read-only	Number of Elements on this logical ring
INT logRingLambdaStatus	1.3.6.1.4.1.5812.4.4.1.3	INTEGER	read-only	The status of the lambda for the logical ring
OCT logRingProtoStatusTxt	1.3.6.1.4.1.5812.4.4.1.5	OCTET STRING	read-only	The ascii text describing the protocol status of the ring
INT logRingProtoStatus	1.3.6.1.4.1.5812.4.4.1.6	INTEGER	read-only	The protocol status of the logical ring
OCT logRingGneName	1.3.6.1.4.1.5812.4.4.1.7	OCTET STRING	read-only	The name of the GNE on the ring.
IP logRingGneIpAddr	1.3.6.1.4.1.5812.4.4.1.8	IpAddress	read-only	The IP address of the GNE on the ring.
INT logRingGneRingSlot	1.3.6.1.4.1.5812.4.4.1.9	INTEGER	read-only	The slot of the connected GNE ring.
INT logRingGneRingPort	1.3.6.1.4.1.5812.4.4.1.10	INTEGER	read-only	The port of the connected GNE ring.
INT logRingGneRingVport	1.3.6.1.4.1.5812.4.4.1.11	INTEGER	read-only	The virtual port of the connected GNE ring.
OCT logRingUpsNgbrName	1.3.6.1.4.1.5812.4.4.1.12	OCTET STRING	read-only	The name of the upstream neighbor on the ring.
IP logRingUpsNgbrIpAddr	1.3.6.1.4.1.5812.4.4.1.13	IpAddress	read-only	The IP address of the upstream neighbor on the ring.
INT logRingUpsNgbrRingSlot	1.3.6.1.4.1.5812.4.4.1.14	INTEGER	read-only	The slot of the connected upstream neighbors ring.
INT logRingUpsNgbrRingPort	1.3.6.1.4.1.5812.4.4.1.15	INTEGER	read-only	The port of the connected upstream neighbors ring.
INT logRingUpsNgbrRingVport	1.3.6.1.4.1.5812.4.4.1.16	INTEGER	read-only	The virtual port of the connected upstream neighbors ring.
T/F logRingIsConfigured	1.3.6.1.4.1.5812.4.4.1.17	TruthValue	read-only	Whether this ring has been configured by NM
INT logRingAttRingType	1.3.6.1.4.1.5812.4.4.1.18	INTEGER	read-only	This object provides the type of the ring.
INT logRingCapacity	1.3.6.1.4.1.5812.4.4.1.19	INTEGER	read-only	The capacity of the ring.
IP logRingCutLocationIp	1.3.6.1.4.1.5812.4.4.1.20	IpAddress	read-only	IP address of the element where ring is cut.
OCT logRingCutLocationName	1.3.6.1.4.1.5812.4.4.1.21	OCTET STRING	read-only	Name of the element where ring is cut.
T/F logRingIsRingMaster	1.3.6.1.4.1.5812.4.4.1.22	TruthValue	read-only	Whether this node is master on the ring.
INT logRingOtherSlot	1.3.6.1.4.1.5812.4.4.1.23	INTEGER	read-only	The slot of the other(for working, it's protected or vice versa) ring.
INT logRingOtherPort	1.3.6.1.4.1.5812.4.4.1.24	INTEGER	read-only	The port of the other(for working, it's protected or vice versa) ring.
INT logRingOtherVport	1.3.6.1.4.1.5812.4.4.1.25	INTEGER	read-only	The vport of the other(for working, it's protected or vice versa) ring.
actLogRingElemTable	1.3.6.1.4.1.5812.4.5		not-accessible	The actual logical ring topology table. This describes the Elements on a logical ring
actLogRingElemEntry	1.3.6.1.4.1.5812.4.5.1		not-accessible	Entry containing information about the Elements on a logical ring
INT logRingElemIndex	1.3.6.1.4.1.5812.4.5.1.1	INTEGER	read-only	The position of the Element on the ring starting from the transmit side of GNE
OCT logRingElemName	1.3.6.1.4.1.5812.4.5.1.2	OCTET STRING	read-only	The name of the Element
OCT logRingElemMACAddr	1.3.6.1.4.1.5812.4.5.1.3	OCTET STRING	read-only	The MAC address of the Element
IP logRingElemIpAddr	1.3.6.1.4.1.5812.4.5.1.4	IpAddress	read-only	The IP address of the Element
OCT logRingElemPortId	1.3.6.1.4.1.5812.4.5.1.5	OCTET STRING	read-only	The port id for the logical ring on this NE
INT logRingElemChassisId	1.3.6.1.4.1.5812.4.5.1.6	INTEGER	read-only	The chassis identifier of the Element
INT logRingElemActiveMM	1.3.6.1.4.1.5812.4.5.1.7	INTEGER	read-only	The active management module of the Element
T/F logRingElemIsInNeTable	1.3.6.1.4.1.5812.4.5.1.8	TruthValue	read-only	Indicates whether this element has it's entry in the cfgNeTable
T/F logRingElemIsReachable	1.3.6.1.4.1.5812.4.5.1.9	TruthValue	read-only	Indicates whether this element is reachable on this ring.
T/F logRingElemIsLambdaCutHere	1.3.6.1.4.1.5812.4.5.1.10	TruthValue	read-only	Indicates whether there is a lambda cut at this element.
INT logRingElemChassisCharacter	1.3.6.1.4.1.5812.4.5.1.11	INTEGER	read-only	The chassis character of the element.
INT logRingElemNodeId	1.3.6.1.4.1.5812.4.5.1.12	INTEGER	read-only	The node id of the element on the ring. Value 64 means element doesn't have node id.
INT logRingElemRxSegCutSeverity	1.3.6.1.4.1.5812.4.5.1.13	INTEGER	read-only	The cut severity of RX segement of this element on the ring. Cut severity indicates the effect of cutting RX segment on service level. noLoss => segment doesn't carry any user traffic sonetProtection => segment carries user traffic but 50ms restoration is available if segment is cut. serviceAffecting => segment carries user traffic but 50ms restoration is not available. This could be because of either ring is configured in unprotected mode or existing cut in the ring.
INT cfgRingCount	1.3.6.1.4.1.5812.4.6	INTEGER	read-only	The number of configured rings
cfgRingTable	1.3.6.1.4.1.5812.4.7		not-accessible	The configured ring table. The number of entries in this table is given by cfgRingCount
cfgRingEntry	1.3.6.1.4.1.5812.4.7.1		not-accessible	Entry containing information about the attributes of configured rings passing through a device
INT cfgRingRowStatus	1.3.6.1.4.1.5812.4.7.1.1	INTEGER	read-write	The row status variable. In order to modify the attributes of the ring ring has to be put in out-of-service first.
INT cfgRingAdminCost	1.3.6.1.4.1.5812.4.7.1.2	INTEGER	read-write	Admin cost of the ring. In the normal case, all rings should have same admin cost. Whenever a ring is needed to be serviced, increase the admin cost of the ring. This would force the GNE to move off TCs one by one of the ring if there is alternate path available with lower admin cost. This way there will not be a sudden disruption in the case where you bring the ring down suddenly.
STR cfgRingName	1.3.6.1.4.1.5812.4.7.1.3	DisplayString	read-write	The name of the configured ring
INT cfgRingMeshFactor	1.3.6.1.4.1.5812.4.7.1.4	INTEGER	read-write	Traffic pattern on ring. The value varies between 1 (in case of hub traffic pattern)and n/2 (in case of mesh traffic pattern) where n is number of nodes in ring. This describes the inter-connection topology between nodes of the ring. Internally this factor is multiplied by n-1 to get the number of inter-connections between nodes of the ring.
INT cfgRingEirOverSub	1.3.6.1.4.1.5812.4.7.1.5	INTEGER	read-write	Over subscription percentage on EIR portion of BW allocated on ring
INT cfgRingProtectMode	1.3.6.1.4.1.5812.4.7.1.6	INTEGER	read-write	The protection mode of the ring
STR cfgRingExceptNes	1.3.6.1.4.1.5812.4.7.1.7	DisplayString	read-write	Comma separated list of IP address that are physically present on the ring but no connections are allowed to be setup. This is useful for traffic management where there is a bandwidth crunch on the ring. But some of the NEs on that particular ring have alternate paths through the other rings.
STR cfgRingNeTopo	1.3.6.1.4.1.5812.4.7.1.8	DisplayString	read-write	Desired topology of the ring (starting from transmit direction) in the form of comma separated list of IP addresses. If the actual topology mismatches with the desired topology, an event get generated.
INT cfgRingIpMode	1.3.6.1.4.1.5812.4.7.1.9	INTEGER	read-write	Source of ip addresses of NEs. If it is gneSupplied, GNE over writes the ip address of NE from its configured tables. Otherwise it takes it from NE itself
INT cfgRingFrameMode	1.3.6.1.4.1.5812.4.7.1.10	INTEGER	read-write	The frame mode on the ring
INT cfgRingOperStatus	1.3.6.1.4.1.5812.4.7.1.13	INTEGER	read-only	The operational status of the configured ring
INT cfgRingCurNumTdmCkts	1.3.6.1.4.1.5812.4.7.1.14	INTEGER	read-only	The number of TDM ckts traversing on the ring currently.
INT cfgRingCurNumFreeChans	1.3.6.1.4.1.5812.4.7.1.15	INTEGER	read-only	The number of free channels available on the ring currently.
STR cfgRingNeAdminCost	1.3.6.1.4.1.5812.4.7.1.16	DisplayString	read-write	The NE specific admin costs on the ring as comma separated list where list entry is of form :. Admin costs for the NE's that are present on this ring but not specified in this list are inherited from ring admin cost. Admin cost per NE per ring is useful in traffic management
INT cfgRingCurNumDataCkts	1.3.6.1.4.1.5812.4.7.1.17	INTEGER	read-only	The number of data ckts traversing on the ring currently.
INT cfgRingCurAllocTdmBwKbits	1.3.6.1.4.1.5812.4.7.1.18	INTEGER	read-only	The bandwidth on the ring that is currently being reserved by TDM ckts passing through ring.
INT cfgRingCurAllocCirBwKbits	1.3.6.1.4.1.5812.4.7.1.19	INTEGER	read-only	The bandwidth on the ring that is currently being reserved for CIR by data ckts passing through the ring.
INT cfgRingCurAllocEirBwKbits	1.3.6.1.4.1.5812.4.7.1.20	INTEGER	read-only	The bandwidth on the ring that is currently being reserved for EIR by data ckts passing through the ring.
INT cfgRingCurAvailBwKbits	1.3.6.1.4.1.5812.4.7.1.21	INTEGER	read-only	The current available bandwidth on the ring
INT cfgRingTdmAvgUtilPercent	1.3.6.1.4.1.5812.4.7.1.22	INTEGER	read-only	Average ring utilization for TDM traffic since last reset
INT cfgRingTdmLastUtilPercent	1.3.6.1.4.1.5812.4.7.1.23	INTEGER	read-only	Ring utilization for TDM traffic during last period.
INT cfgRingTdmMaxUtilPercent	1.3.6.1.4.1.5812.4.7.1.24	INTEGER	read-only	Max. ring utilization for TDM traffic since last reset
INT cfgRingDataAvgUtilPercent	1.3.6.1.4.1.5812.4.7.1.25	INTEGER	read-only	Average ring utilization for Data traffic since last reset
INT cfgRingDataLastUtilPercent	1.3.6.1.4.1.5812.4.7.1.26	INTEGER	read-only	Ring utilization for Data traffic during last period
INT cfgRingDataMaxUtilPercent	1.3.6.1.4.1.5812.4.7.1.27	INTEGER	read-only	Max. ring utilization for Data traffic since last reset
INT cfgRingTotalAvgUtilPercent	1.3.6.1.4.1.5812.4.7.1.28	INTEGER	read-only	Average ring utlization for combined Data and TDM traffic
INT cfgRingTotalLastUtilPercent	1.3.6.1.4.1.5812.4.7.1.29	INTEGER	read-only	Ring utilization for TDM and Data traffic during last period
INT cfgRingTotalMaxUtilPercent	1.3.6.1.4.1.5812.4.7.1.30	INTEGER	read-only	Max. ring utilization for TDM and Data traffic since last reset
C64 cfgRingTdmTrafficKbitsEx	1.3.6.1.4.1.5812.4.7.1.31	Counter64	read-only	TDM traffic transmitted on ring since last reset
C64 cfgRingTdmLastTrafficKbits	1.3.6.1.4.1.5812.4.7.1.32	Counter64	read-only	TDM traffic transmitted on ring during current period
C64 cfgRingDataTrafficKbits	1.3.6.1.4.1.5812.4.7.1.33	Counter64	read-only	Data traffic transmitted on ring since last reset
C64 cfgRingDataLastTrafficKbits	1.3.6.1.4.1.5812.4.7.1.34	Counter64	read-only	Data traffic trasnmitted on ring during last period
C64 cfgRingDataNumPkts	1.3.6.1.4.1.5812.4.7.1.35	Counter64	read-only	Number of Data packets on ring since last reset
C64 cfgRingDataLastNumPkts	1.3.6.1.4.1.5812.4.7.1.36	Counter64	read-only	Number of Data packets on ring during last period
TIK cfgRingStatsCollElapsedTime	1.3.6.1.4.1.5812.4.7.1.37	TimeTicks	read-only	The time elapsed since the beginning of collection of ring statistics
TIK cfgRingStatsPeriodTime	1.3.6.1.4.1.5812.4.7.1.38	TimeTicks	read-only	The period of status collection interval
TIK cfgRingTimeSinceLastOperStatusChange	1.3.6.1.4.1.5812.4.7.1.39	TimeTicks	read-only	The time since the last change in the oper status of the ring
INT cfgRingTdmMinUtilPercent	1.3.6.1.4.1.5812.4.7.1.40	INTEGER	read-only	Mininum ring utilization for TDM traffic since last reset
INT cfgRingDataMinUtilPercent	1.3.6.1.4.1.5812.4.7.1.41	INTEGER	read-only	Mininum ring utilization for data traffic since last reset
INT cfgRingTotalMinUtilPercent	1.3.6.1.4.1.5812.4.7.1.42	INTEGER	read-only	Mininum ring utilization for combined TDM and Data traffic since last reset
INT cfgRingAttUpsrSwitchCmd	1.3.6.1.4.1.5812.4.7.1.43	INTEGER	read-write	This object defines the UPSR switch commands that amy be configured. These commands are configurable and static. The priority of the commands in relation to APS and revertive switching is given in the enumeration above.
T/F cfgRingIsRevertiveModeEnabled	1.3.6.1.4.1.5812.4.7.1.44	TruthValue	read-write	If the revertive mode is enabled and the UPSR switch command is clear, then, if the working ring gets cut, the traffic is moved to the protected ring. When the working ring is restored from the cut, traffic will be reverted to the working ring.
INT cfgRingWaitToRestorePeriod	1.3.6.1.4.1.5812.4.7.1.45	INTEGER	read-write	This object provide the time period in minutes between the time the working ring gets restored from the cut and the time when the traffic is reverted to the working ring.
INT cfgRingCurTdmAvailBwKbits	1.3.6.1.4.1.5812.4.7.1.46	INTEGER	read-only	The current tdm available bandwidth on the ring
INT cfgRingCurDataAvailBwKbits	1.3.6.1.4.1.5812.4.7.1.47	INTEGER	read-only	The current pkt available bandwidth on the ring
ringMIB	1.3.6.1.4.1.5812.4.8			The MIB module for coriolis rings

RFC description

IEEE 802.5 Token Ring Interface MIB (RFC 1231) defining managed objects for monitoring Token Ring network technology and interfaces.

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Download RING-MIB