All MIBs › Nortel-Magellan-Passport-VnetNisSigMIB
Category: Nortel Magellan Passport
Description: Provides SNMP management objects for NIS (National ISDN Specification) signaling on Nortel Magellan Passport switches.
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What Is Nortel-Magellan-Passport-VnetNisSigMIB?
This MIB manages National ISDN Specification (NIS) signaling channels within the Passport virtual network on Nortel Magellan Passport multiservice switches. It exposes sigChanNisL2Table, carrying Layer-2 (Q.921/LAPD-style) timer and counter parameters such as sigChanNisT200 and sigChanNisN200, plus sigChanNisT23 for a higher-layer signaling timer. Monitoring is directly focused on signaling-link stability: frequent T200 retransmission timer expiries or N200 retry exhaustion on a channel indicate an unstable D-channel signaling link, which can drop ISDN call signaling entirely. It depends on ITU-T Q.921/national ISDN signaling standards and the shared Passport component/RowStatus conventions. It is deployed on Passport ISDN PRI/BRI signaling channels within National ISDN-based carrier or enterprise voice/data networks. Engineers can download the Nortel-Magellan-Passport-VnetNisSigMIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-Magellan-Passport-VnetNisSigMIB. 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
- Nortel Magellan Passport multiservice switch
- ISDN PRI/BRI signaling interface
Monitoring Examples
An engineer checks sigChanNisL2Table/sigChanNisL2Entry for a signaling channel (sigChanNisComponentName) to review sigChanNisT200 (retransmission timer) and sigChanNisN200 (retry count), which govern LAPD signaling link retries. sigChanNisT23 configures a higher-layer signaling timeout. Frequent T200 expiries or N200 retry exhaustion on a signaling channel indicates an unstable D-channel link, risking loss of ISDN call signaling on that trunk.
What Can Be Monitored
- signaling channel L2 timer values (T200/N200)
- signaling channel timeout configuration
- component row status
This MIB depends on
Related MIBs
Imported Objects
From Nortel-Magellan-Passport-StandardTextualConventionsMIB
| DisplayString | |
| RowStatus | |
| StorageType | |
| Unsigned32 |
From Nortel-Magellan-Passport-TextualConventionsMIB
| Link | |
| NonReplicated |
From Nortel-Magellan-Passport-UsefulDefinitionsMIB
| passportMIBs | OBJECT-IDENTITY |
From Nortel-Magellan-Passport-VoiceNetworkingMIB
| sigChan | OBJECT-IDENTITY |
| sigChanIndex | OBJECT-TYPE |
From RFC-1212
| OBJECT-TYPE |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| sigChanNis | 1.3.6.1.4.1.562.2.4.1.115.8 | |||
| sigChanNisRowStatusTable | 1.3.6.1.4.1.562.2.4.1.115.8.1 | not-accessible | This entry controls the addition and deletion of sigChanNis components. | |
| sigChanNisRowStatusEntry | 1.3.6.1.4.1.562.2.4.1.115.8.1.1 | not-accessible | A single entry in the table represents a single sigChanNis component. | |
| ROW sigChanNisRowStatus | 1.3.6.1.4.1.562.2.4.1.115.8.1.1.1 | RowStatus | read-write | This variable is used as the basis for SNMP naming of sigChanNis components. These components can be added and deleted. |
| STR sigChanNisComponentName | 1.3.6.1.4.1.562.2.4.1.115.8.1.1.2 | DisplayString | read-only | This variable provides the component's string name for use with the ASCII Console Interface |
| STO sigChanNisStorageType | 1.3.6.1.4.1.562.2.4.1.115.8.1.1.4 | StorageType | read-only | This variable represents the storage type value for the sigChanNis tables. |
| NON sigChanNisIndex | 1.3.6.1.4.1.562.2.4.1.115.8.1.1.10 | NonReplicated | not-accessible | This variable represents the index for the sigChanNis tables. |
| sigChanNisFramer | 1.3.6.1.4.1.562.2.4.1.115.8.2 | |||
| sigChanNisFramerRowStatusTable | 1.3.6.1.4.1.562.2.4.1.115.8.2.1 | not-accessible | This entry controls the addition and deletion of sigChanNisFramer components. | |
| sigChanNisFramerRowStatusEntry | 1.3.6.1.4.1.562.2.4.1.115.8.2.1.1 | not-accessible | A single entry in the table represents a single sigChanNisFramer component. | |
| ROW sigChanNisFramerRowStatus | 1.3.6.1.4.1.562.2.4.1.115.8.2.1.1.1 | RowStatus | read-only | This variable is used as the basis for SNMP naming of sigChanNisFramer components. These components cannot be added nor deleted. |
| STR sigChanNisFramerComponentName | 1.3.6.1.4.1.562.2.4.1.115.8.2.1.1.2 | DisplayString | read-only | This variable provides the component's string name for use with the ASCII Console Interface |
| STO sigChanNisFramerStorageType | 1.3.6.1.4.1.562.2.4.1.115.8.2.1.1.4 | StorageType | read-only | This variable represents the storage type value for the sigChanNisFramer tables. |
| NON sigChanNisFramerIndex | 1.3.6.1.4.1.562.2.4.1.115.8.2.1.1.10 | NonReplicated | not-accessible | This variable represents the index for the sigChanNisFramer tables. |
| sigChanNisFramerProvTable | 1.3.6.1.4.1.562.2.4.1.115.8.2.10 | not-accessible | This group contains the base provisioning data for the Framer component. Application or hardware interface specific provisioning data is contained in other provisionable Framer groups. | |
| sigChanNisFramerProvEntry | 1.3.6.1.4.1.562.2.4.1.115.8.2.10.1 | not-accessible | An entry in the sigChanNisFramerProvTable. | |
| LIN sigChanNisFramerInterfaceName | 1.3.6.1.4.1.562.2.4.1.115.8.2.10.1.1 | Link | read-write | This attribute contains a hardware component name. The attribute associates the application with a specific link. This defines the module processor on which Framer's parent component (as well as Framer itself) will run. |
| sigChanNisFramerStateTable | 1.3.6.1.4.1.562.2.4.1.115.8.2.12 | not-accessible | This group contains the three OSI State attributes. The descriptions generically indicate what each state attribute implies about the component. Note that not all the values and state combinations described here are supported by every component which uses this group. For component-specific information and the valid state combinations, refer to NTP 241-7001-150, Passport Operations and Maintenance Guide. | |
| sigChanNisFramerStateEntry | 1.3.6.1.4.1.562.2.4.1.115.8.2.12.1 | not-accessible | An entry in the sigChanNisFramerStateTable. | |
| INT sigChanNisFramerAdminState | 1.3.6.1.4.1.562.2.4.1.115.8.2.12.1.1 | INTEGER | read-only | This attribute indicates the OSI Administrative State of the component. The value locked indicates that the component is administratively prohibited from providing services for its users. A Lock or Lock - force command has been previously issued for this component. When the value is locked, the value of usageState must be idle. The value shuttingDown indicates that the component is administratively permitted to provide service to its existing users only. A Lock command was issued against the component and it is in the process of shutting down. The value unlocked indicates that the component is administratively permitted to provide services for its users. To enter this state, issue an Unlock command to this component. |
| INT sigChanNisFramerOperationalState | 1.3.6.1.4.1.562.2.4.1.115.8.2.12.1.2 | INTEGER | read-only | This attribute indicates the OSI Operational State of the component. The value enabled indicates that the component is available for operation. Note that if adminState is locked, it would still not be providing service. The value disabled indicates that the component is not available for operation. For example, something is wrong with the component itself, or with another component on which this one depends. If the value is disabled, the usageState must be idle. |
| INT sigChanNisFramerUsageState | 1.3.6.1.4.1.562.2.4.1.115.8.2.12.1.3 | INTEGER | read-only | This attribute indicates the OSI Usage State of the component. The value idle indicates that the component is not currently in use. The value active indicates that the component is in use and has spare capacity to provide for additional users. The value busy indicates that the component is in use and has no spare operating capacity for additional users at this time. |
| sigChanNisFramerStatsTable | 1.3.6.1.4.1.562.2.4.1.115.8.2.13 | not-accessible | This group contains the operational statistics data for a Framer component. | |
| sigChanNisFramerStatsEntry | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1 | not-accessible | An entry in the sigChanNisFramerStatsTable. | |
| U32 sigChanNisFramerFrmToIf | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.1 | Unsigned32 | read-only | This attribute counts the number of frames transmitted to the link interface by Framer. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerFrmFromIf | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.2 | Unsigned32 | read-only | This attribute counts the number of frames received from the link interface by Framer. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerOctetFromIf | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.3 | Unsigned32 | read-only | The number of bytes received from the link interface by Framer. |
| U32 sigChanNisFramerAborts | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.4 | Unsigned32 | read-only | This attribute counts the total number of aborts received. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerCrcErrors | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.5 | Unsigned32 | read-only | This attribute counts the total number of frames with CRC errors. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerLrcErrors | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.6 | Unsigned32 | read-only | This attribute counts the total number of frames with LRC errors. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerNonOctetErrors | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.7 | Unsigned32 | read-only | This attribute counts the total number of frames that were non octet aligned. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerOverruns | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.8 | Unsigned32 | read-only | This attribute counts the total number of frames received from the link for which overruns occurred. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerUnderruns | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.9 | Unsigned32 | read-only | This attribute counts the total number of frames transmitted to the link for which underruns occurred. This count wraps to zero after reaching its maximum value. |
| U32 sigChanNisFramerLargeFrmErrors | 1.3.6.1.4.1.562.2.4.1.115.8.2.13.1.10 | Unsigned32 | read-only | This attribute counts the total number of frames received which were too large (longer than 500 bytes). This count wraps to zero after reaching its maximum value. |
| sigChanNisL2Table | 1.3.6.1.4.1.562.2.4.1.115.8.11 | not-accessible | This group specifies the provisionable layer 2 attributes of the Q.931 ITU-T protocol. | |
| sigChanNisL2Entry | 1.3.6.1.4.1.562.2.4.1.115.8.11.1 | not-accessible | An entry in the sigChanNisL2Table. | |
| U32 sigChanNisT23 | 1.3.6.1.4.1.562.2.4.1.115.8.11.1.1 | Unsigned32 | read-write | This attribute specifies the layer 2 enable request timer. |
| U32 sigChanNisT200 | 1.3.6.1.4.1.562.2.4.1.115.8.11.1.2 | Unsigned32 | read-write | This attribute specifies the maximum time between a layer 2 frame and its acknowledgment. |
| U32 sigChanNisN200 | 1.3.6.1.4.1.562.2.4.1.115.8.11.1.3 | Unsigned32 | read-write | This attribute specifies the maximum number of re-transmissions of a layer 2 frame. |
| U32 sigChanNisT203 | 1.3.6.1.4.1.562.2.4.1.115.8.11.1.4 | Unsigned32 | read-write | This attribute specifies the maximum time for which layer 2 frames may be absent. Expiry triggers a check on whether the far end is alive. |
| U32 sigChanNisCircuitSwitchedK | 1.3.6.1.4.1.562.2.4.1.115.8.11.1.6 | Unsigned32 | read-write | This attribute specifies the maximum number of sequentially numbered I frames (that is, window size (k)) that may be unacknowledged at any given time for a SAP supporting primary rate (64kbit/sec) signalling. |
| sigChanNisL3Table | 1.3.6.1.4.1.562.2.4.1.115.8.12 | not-accessible | This group represents the provisionable Layer 3 timer attributes of a the Nis signalling protocol. | |
| sigChanNisL3Entry | 1.3.6.1.4.1.562.2.4.1.115.8.12.1 | not-accessible | An entry in the sigChanNisL3Table. | |
| U32 sigChanNisT309 | 1.3.6.1.4.1.562.2.4.1.115.8.12.1.3 | Unsigned32 | read-write | This attribute specifies the data link failure timer; used to ride out temporary failures. |
| U32 sigChanNisT310 | 1.3.6.1.4.1.562.2.4.1.115.8.12.1.4 | Unsigned32 | read-write | This attribute specifies the call proceeding state timer. |
| sigChanNisProvTable | 1.3.6.1.4.1.562.2.4.1.115.8.13 | not-accessible | This group defines the general options of the D-channel signalling link. | |
| sigChanNisProvEntry | 1.3.6.1.4.1.562.2.4.1.115.8.13.1 | not-accessible | An entry in the sigChanNisProvTable. | |
| INT sigChanNisSide | 1.3.6.1.4.1.562.2.4.1.115.8.13.1.1 | INTEGER | read-write | This attribute specifies whether the interface is the network or user side of the connection. The parameter applies to both the layer 2 and layer 3 of the interface. If this attribute is set to network, then the interface is master during channel negotiation. If this attribute is set to user, then the interface is slave during channel negotiation. |
| U32 sigChanNisMaxNonCallConcurrent | 1.3.6.1.4.1.562.2.4.1.115.8.13.1.2 | Unsigned32 | read-write | This attribute specifies the maximum number of simultaneous active non-call messages that are allowed. |
| sigChanNisStateTable | 1.3.6.1.4.1.562.2.4.1.115.8.14 | not-accessible | This group contains the three OSI State attributes. The descriptions generically indicate what each state attribute implies about the component. Note that not all the values and state combinations described here are supported by every component which uses this group. For component-specific information and the valid state combinations, refer to NTP 241-7001-150, Passport Operations and Maintenance Guide. | |
| sigChanNisStateEntry | 1.3.6.1.4.1.562.2.4.1.115.8.14.1 | not-accessible | An entry in the sigChanNisStateTable. | |
| INT sigChanNisAdminState | 1.3.6.1.4.1.562.2.4.1.115.8.14.1.1 | INTEGER | read-only | This attribute indicates the OSI Administrative State of the component. The value locked indicates that the component is administratively prohibited from providing services for its users. A Lock or Lock - force command has been previously issued for this component. When the value is locked, the value of usageState must be idle. The value shuttingDown indicates that the component is administratively permitted to provide service to its existing users only. A Lock command was issued against the component and it is in the process of shutting down. The value unlocked indicates that the component is administratively permitted to provide services for its users. To enter this state, issue an Unlock command to this component. |
| INT sigChanNisOperationalState | 1.3.6.1.4.1.562.2.4.1.115.8.14.1.2 | INTEGER | read-only | This attribute indicates the OSI Operational State of the component. The value enabled indicates that the component is available for operation. Note that if adminState is locked, it would still not be providing service. The value disabled indicates that the component is not available for operation. For example, something is wrong with the component itself, or with another component on which this one depends. If the value is disabled, the usageState must be idle. |
| INT sigChanNisUsageState | 1.3.6.1.4.1.562.2.4.1.115.8.14.1.3 | INTEGER | read-only | This attribute indicates the OSI Usage State of the component. The value idle indicates that the component is not currently in use. The value active indicates that the component is in use and has spare capacity to provide for additional users. The value busy indicates that the component is in use and has no spare operating capacity for additional users at this time. |
| sigChanNisStatsTable | 1.3.6.1.4.1.562.2.4.1.115.8.15 | not-accessible | This group provides the operational components for the NisSig component. | |
| sigChanNisStatsEntry | 1.3.6.1.4.1.562.2.4.1.115.8.15.1 | not-accessible | An entry in the sigChanNisStatsTable. | |
| U32 sigChanNisTotalCallsToIf | 1.3.6.1.4.1.562.2.4.1.115.8.15.1.2 | Unsigned32 | read-only | This attribute counts the total number of calls that have been made to the interface. The value wraps when it reaches its maximum. |
| U32 sigChanNisTotalCallsFromIf | 1.3.6.1.4.1.562.2.4.1.115.8.15.1.3 | Unsigned32 | read-only | This attribute counts the total number of calls from the interface. The value wraps when it reaches its maximum. |
| U32 sigChanNisNonCallAssocSessionsToIf | 1.3.6.1.4.1.562.2.4.1.115.8.15.1.4 | Unsigned32 | read-only | This attribute counts the total number of non-call associated sessions to the interface. The value wraps when it reaches its maximum. |
| U32 sigChanNisNonCallAssocSessionsFromIf | 1.3.6.1.4.1.562.2.4.1.115.8.15.1.5 | Unsigned32 | read-only | This attribute counts the total number of non-call associated sessions from the interface. The value wraps when it reaches its maximum. |
| sigChanNisOperTable | 1.3.6.1.4.1.562.2.4.1.115.8.16 | not-accessible | This group provides the operational attributes for the NisSig protocol. | |
| sigChanNisOperEntry | 1.3.6.1.4.1.562.2.4.1.115.8.16.1 | not-accessible | An entry in the sigChanNisOperTable. | |
| U32 sigChanNisActiveChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.1 | Unsigned32 | read-only | This attribute indicates the number of currently active channels. This includes data and voice channels. |
| U32 sigChanNisActiveVoiceChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.2 | Unsigned32 | read-only | This attribute indicates the number of channels that are currently carrying voice. |
| U32 sigChanNisActiveDataChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.3 | Unsigned32 | read-only | This attribute indicates the number of channels that are currently carrying data. This does not include modem data. |
| U32 sigChanNisPeakActiveChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.4 | Unsigned32 | read-only | This attribute indicates the maximum number of channels that have been active on this signalling channel during the last polling period. |
| U32 sigChanNisPeakActiveVoiceChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.5 | Unsigned32 | read-only | This attribute indicates the maximum number of voice channels that have been active on this signalling channel during the last polling period. |
| U32 sigChanNisPeakActiveDataChannels | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.6 | Unsigned32 | read-only | This attribute indicates the maximum number of data channels that have been active on this signalling channel during the last polling period. |
| INT sigChanNisDChanStatus | 1.3.6.1.4.1.562.2.4.1.115.8.16.1.7 | INTEGER | read-only | This attribute indicates the state of the D-channel. outOfService means that there is no layer 2 or layer 3 connectivity to the PBX. establishing means that the signalling channel is attempting to stage the layer 2. established means that the layer 2 is enabled. If the signalling channel stays in the established state, then it is waiting for a restart from the PBX. enabling means that the resources for processing calls are being initialized. If the signalling channel stays in the enabling state then it is waiting for a restart acknowledgement from the PBX. inService means that the resources for processing calls are available. restarting means that the resources for call processing are being rei-initialized. |
| sigChanNisToolsTable | 1.3.6.1.4.1.562.2.4.1.115.8.17 | not-accessible | This contains a series of operational attributes which turn on and off several kinds of tracing. | |
| sigChanNisToolsEntry | 1.3.6.1.4.1.562.2.4.1.115.8.17.1 | not-accessible | An entry in the sigChanNisToolsTable. | |
| OCT sigChanNisTracing | 1.3.6.1.4.1.562.2.4.1.115.8.17.1.1 | OCTET STRING | read-write | This attribute defines which types of tracing are active for this signalling channel. The tracing messages are sent to the debug stream. To see the messages the agentQueue attribute in Col/debug must be greater than 0 and a Telnet NMIS session must list the debug stream in in its data streams (ex. set nmis telnet session/1 dataStreams debug). Different types of tracing can be enabled simultaneously. Note that tracing consumes additional CPU resources and will slow down call processing on a heavily loaded card. If there is message block exhaustion tracing will be suspended for a period and then automatically reenabled. An alarm is generated on tracing suspension and resumption. This mechanism protects the function processor against excessive numbers of tracing messages. Types of tracing include: protocolErrors - get details of any protocol errors which are occuring. Protocol errors are also reported in summary form as alarms. q931Summary - Summary of the Q.931 messages on the signalling link, including certain call details (calling number, called number, release codes). q931Hex - Q.931 messages displayed in hex format. Useful to determine protocol compliance in case of errors reported on local or remote ends. q931Symbolic - Q.931 messages parsed to give maximum detail. Useful for understanding content of messages flowing on the link. portHex - Messages in hex format being sent and received on the link. Description of bits: protocolErrors(0) q931Summary(1) q931Hex(2) q931Symbolic(3) portHex(4) |
| sigChanNisNisSpecificProvTable | 1.3.6.1.4.1.562.2.4.1.115.8.18 | not-accessible | This group provides NIS protocol specific provisioning. | |
| sigChanNisNisSpecificProvEntry | 1.3.6.1.4.1.562.2.4.1.115.8.18.1 | not-accessible | An entry in the sigChanNisNisSpecificProvTable. | |
| INT sigChanNisChanMaintenanceHandling | 1.3.6.1.4.1.562.2.4.1.115.8.18.1.1 | INTEGER | read-write | This attribute specifies how channel maintenance events should be handled upon startup. Channel maintenance events include locking and unlocking a channel or channel registration. The decision is either to send individual channel RESTART messages, SERVICE messages, or nothing. Note that channel registration only occurs after the global interface restart at startup. Setting this attribute to enable SERVICE messages ensures that SERVICE messages occur at startup and whenever a channel goes into or out of service. If this attribute is not set to enable SERVICE messaging, a RESTART is always sent on unlocking a channel. globalOnStartup provides the minimum required functionality at startup, without any individual channel confirmation. Note that when this is set, channel RESTART is still used for channel unlock. globalOnStartup applies to SigChan startup only. serviceMessage enables sending and receiving SERVICE messages. If this attribute is set to serviceMessage, SERVICE messages are used for channel maintenance on channel lock, channel unlock, and startup. restartMessage specifies that individual channel RESTARTs when the SigChan starts up. If this attribute is set to restartMessage, a RESTART message is used to send at startup and channel unlock. |
| vnetNisSigMIB | 1.3.6.1.4.1.562.2.4.2.112 | |||
| vnetNisSigGroup | 1.3.6.1.4.1.562.2.4.2.112.1 | |||
| vnetNisSigGroupBE | 1.3.6.1.4.1.562.2.4.2.112.1.5 | |||
| vnetNisSigGroupBE01 | 1.3.6.1.4.1.562.2.4.2.112.1.5.2 | |||
| vnetNisSigGroupBE01A | 1.3.6.1.4.1.562.2.4.2.112.1.5.2.2 | |||
| vnetNisSigCapabilities | 1.3.6.1.4.1.562.2.4.2.112.3 | |||
| vnetNisSigCapabilitiesBE | 1.3.6.1.4.1.562.2.4.2.112.3.5 | |||
| vnetNisSigCapabilitiesBE01 | 1.3.6.1.4.1.562.2.4.2.112.3.5.2 | |||
| vnetNisSigCapabilitiesBE01A | 1.3.6.1.4.1.562.2.4.2.112.3.5.2.2 |
RFC description
Nortel Magellan Passport VoiceNetworking signaling channel NIS MIB for managing external signaling equipment connections.
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