ALC-MIB

All MIBs › ALC-MIB

Category: Optical and WDM, Vendor: Alcatel-Lucent

Description: Alcatel optical networking MIB providing management objects for core optical network elements and line cards.

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What Is ALC-MIB?

The ALC-MIB is an Alcatel-Lucent enterprise MIB module associated with the company's optical networking product line, covering core optical network elements and line card management. It exposes configuration and inventory-style data structures such as a line/CU (control unit) table describing the physical makeup of an optical shelf or chassis. Because so little module detail is exposed, its primary monitoring value is tracking the presence, count, and status of installed line cards and control units as a proxy for hardware inventory and health. Like most Alcatel enterprise MIBs it assumes support from standard MIB-II/SNMPv2 conventions rather than replacing them, though no explicit dependency is stated. It would typically be deployed in a service-provider or enterprise optical transport network where an NMS polls Alcatel optical shelves for inventory and capacity planning, with the ALC-MIB MIB Browser view helping administrators review that shelf and line-card inventory directly.

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

Northrop Grumman-Canada Tiger network access device (legacy)

Monitoring Examples

No object names were extractable for this module beyond the module description referencing a count of "lines/CU's in the table," so a concrete polling example naming real object identifiers cannot be given honestly. In practice an operator would be expected to enumerate installed line cards/control units and detect when one disappears or a new one is inserted, but the underlying table/object names are not available here.

What Can Be Monitored

installed line card / control unit count
optical shelf inventory changes

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter
enterprises

From RFC1213-MIB

DisplayString

From RS-232-MIB

rs232PortIndex

OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
INT alcCuC1UpCounter	1.3.6.1.4.1.1978.2.10.1.3.1.12	INTEGER	read-write	Number of answered DEAD polls to declare a CU up. (default=1) (PRIMARY only) Equivalent to the secondary variable: alcCuN3PollsTillAlive UNITS: polls
INT alcCuC2DownCounter	1.3.6.1.4.1.1978.2.10.1.3.1.13	INTEGER	read-write	Number of missed LIVE polls to declare a CU down. (default=3) (PRIMARY only) Equivalent to the secondary variable: alcN4PollsTillDead. UNITS: polls
STR alcCuDescr	1.3.6.1.4.1.1978.2.10.1.3.1.2	DisplayString	read-write	Name of this control unit.
CTR alcCuDropped	1.3.6.1.4.1.1978.2.10.1.3.1.31	Counter	read-only	A count of the number of messages dropped due message sent which is not being acknowledged by the CU.
alcCuEntry	1.3.6.1.4.1.1978.2.10.1.3.1		not-accessible	An entry containing information applicable to a particular ALC line.
INT alcCuIA	1.3.6.1.4.1.1978.2.10.1.3.1.3	INTEGER	read-write	this control units IA
INT alcCuIAResetOption	1.3.6.1.4.1.1978.2.10.1.3.1.18	INTEGER	read-write	IA reset message is sent when the IA comes alive. (PRIMARY) The message is sent to the polled IA.
INT alcCuIAValidationOption	1.3.6.1.4.1.1978.2.10.1.3.1.19	INTEGER	read-write	IA Validation: possibly two CUs responding to the same address (PRIMARY) This flag is used with respect to the pollers point of view. none - the message is forwarded on the stream associated with the polled address, (such as for a Cascaded CU, which may send multiple IAs) responding-stream - the message is forwarded on the stream associated with the IA in the responding message, garbled - if the message has an IA that does not match the polled IA, it is counted as a garbled message (alcInvalidAddresses) and is dropped, otherwise it is forwarded on the stream associated with the polled address.
INT alcCuIfIndex	1.3.6.1.4.1.1978.2.10.1.3.1.1	INTEGER	read-write	The line interface identifier that can be used to locate this IA.
INT alcCuMaxCharPerPoll	1.3.6.1.4.1.1978.2.10.1.3.1.15	INTEGER	read-write	maximum number of characters which can be sent to the ACS per POLL. (default=xx) (SECONDARY) UNITS: characters
INT alcCuMaxFrame	1.3.6.1.4.1.1978.2.10.1.3.1.21	INTEGER	read-write	Number of messages allowed to be sent to a given CU before having to poll all the other CUs on the line (default: 0 = disabled) UNITS: messages
INT alcCuN1MaxMsgSize	1.3.6.1.4.1.1978.2.10.1.3.1.8	INTEGER	read-write	(1..xx characters) default=960 Maximum length of a single message. UNITS: characters
INT alcCuN2MaxMsgPerPoll	1.3.6.1.4.1.1978.2.10.1.3.1.14	INTEGER	read-write	maximum number of messages which can be sent to the ACS per POLL. (SECONDARY - multidrop, default=10) UNITS: messages
INT alcCuN3PollsTillAlive	1.3.6.1.4.1.1978.2.10.1.3.1.16	INTEGER	read-write	number of consecutive POLL commands to declare the CU/circuit available. (SECONDARY) Equivalent to the primary variable: alcC1UpCounter. UNITS: polls
INT alcCuN4PollsTillDead	1.3.6.1.4.1.1978.2.10.1.3.1.17	INTEGER	read-write	number of consecutive polling time-outs to declare the CU unavailable. (SECONDARY) Equivalent to the primary variable: alcC2DownCounter. UNITS: polls
INT alcCuOutQueueCharSize	1.3.6.1.4.1.1978.2.10.1.3.1.7	INTEGER	read-write	(1..xx characters) default=xx Defines the size of the queue (in characters) that holds outgoing messages (Port bound). UNITS: characters
INT alcCuOutQueueMsgSize	1.3.6.1.4.1.1978.2.10.1.3.1.6	INTEGER	read-write	(1..100 messages) default=xx Defines the size of the queue (in messages) that holds outgoing messages (Port bound). UNITS: messages
INT alcCuPollCmd	1.3.6.1.4.1.1978.2.10.1.3.1.5	INTEGER	read-write	Mode Function Primary Should we be polling this CU? enabled - polling & forwarding data, disabled - not polling & not forwarding. cascade - not polling but forwarding. Secondary Should we respond to polls? enabled - answer poll. disabled - don't answer poll.
STR alcCuRxCCCOption	1.3.6.1.4.1.1978.2.10.1.3.1.20	DisplayString	read-write	(PRIMARY) a) entry means no is message sent b) default is preconfigured IA Resend message '=0x1F, =0x38,' c) user can enter their own 'please re-enter' message response. Message must be fully configured: ''
CTR alcCuRxChars	1.3.6.1.4.1.1978.2.10.1.3.1.28	Counter	read-only	A count of the number of characters received from the CU.
CTR alcCuRxFrames	1.3.6.1.4.1.1978.2.10.1.3.1.26	Counter	read-only	A count of the number of frames received for this CU.
NTF alcCuState	1.3.6.1.4.1.1978.2.10.2.2.0.1			A trap that indicates that the Cu has changed state. When alcCuStatus is: enabledUp - the CU has exceeded the alcCuC1UpCounter and is now declared up. enabledDown - the CU has exceeded the alcCuC2DownCounter and is now declared down.
INT alcCuStatus	1.3.6.1.4.1.1978.2.10.1.3.1.4	INTEGER	read-only	What is this control units current status. enabledUp: responding to polls, enabledDown: not responding to polls.
CTR alcCuStatusChanges	1.3.6.1.4.1.1978.2.10.1.3.1.25	Counter	read-only	A count of the number of times: a) no response to a live poll was received (PRIMARY), b) CU had polling stopped due to T1 timeouts.
INT alcCuStatusTrapControl	1.3.6.1.4.1.1978.2.10.1.3.1.30	INTEGER	read-write	If enabled, it allows the system to generate alcCuState traps, when the CU's status (alcCuStatus) changes to enabled-up, and enabled-down respectively.
STR alcCuSvcMsgHeader	1.3.6.1.4.1.1978.2.10.1.3.1.22	DisplayString	read-write	The is is the header that is sent out whenever the protocol module determines the need to send a service message. This prefix is in the native character set of the protocol. If the value of alcCuSvcMsgIndex is non-zero, then the prefix will be sent followed by the appropriate message followed by the trailer. Typically this header will be: If applicable, the header must include the column and row number where the message must appear.
INT alcCuSvcMsgIndex	1.3.6.1.4.1.1978.2.10.1.3.1.23	INTEGER	read-write	This provides the index into the service message table: 'svcmsgTable'. If this index is non-zero, the protocol (when it determines a message is required) will send the alcCuSvcMsgHeader followed by the appropriate message from this row in the svcmsgTable, followed by the alcCuSvcMsgTrailer. Both the header and the trailer are in the native character set of the protocol. However it is the responsibility of the protocol module to translate the text of the actual message into the native character set before transmission.
STR alcCuSvcMsgTrailer	1.3.6.1.4.1.1978.2.10.1.3.1.24	DisplayString	read-write	This is the trailer sent whenever a service message is sent. It is in the native character set of the protocol. It is only used if the value of alcCuSvcMsgIndex is non-zero. It will typically be:
INT alcCuT1PollRspTimer	1.3.6.1.4.1.1978.2.10.1.3.1.9	INTEGER	read-write	Poll response timeout (default = 200 millisec) (PRIMARY) No response to a poll was received before this timeout. UNITS: milliseconds
INT alcCuT2MaxRxTimer	1.3.6.1.4.1.1978.2.10.1.3.1.10	INTEGER	read-write	(1..65 seconds) default=5 (PRIMARY) Timeout to ensure that the received messages are not overlength. Typically started at: start of poll, or receipt of first character, stopped at receipt of end of message. This is the maximum Rx time for a CU (including concatenated messages) This is considered a garbled msg, if exceeded. UNITS: seconds
INT alcCuT4NoPollTime	1.3.6.1.4.1.1978.2.10.1.3.1.11	INTEGER	read-write	No polls received within this time. (default = 3000 millisecs) (SECONDARY) UNITS: milliseconds
alcCuTable	1.3.6.1.4.1.1978.2.10.1.3		not-accessible	A list of Cu table entries. The number of entries is given by the value of alcNumCuConfiged.
alcCuTraps	1.3.6.1.4.1.1978.2.10.2.2
CTR alcCuTxChars	1.3.6.1.4.1.1978.2.10.1.3.1.29	Counter	read-only	A count of the number of characters sent to the CU.
CTR alcCuTxFrames	1.3.6.1.4.1.1978.2.10.1.3.1.27	Counter	read-only	A count of the number of frames sent to this CU.
CTR alcDroppedMsgs	1.3.6.1.4.1.1978.2.10.1.2.1.18	Counter	read-only	A count of the number of messages dropped due to the line (eg. RS232 signals) being down.
INT alcDuplexOptions	1.3.6.1.4.1.1978.2.10.1.2.1.4	INTEGER	read-write	An option that defines how the protocol should handle polling: poll-immediate: don't wait for pad characters before sending the poll. none: as soon as the CCC is received, start sending the next poll.
OCT alcErrData	1.3.6.1.4.1.1978.2.10.1.2.1.24	OCTET STRING	read-only	An octet string containing as much of the error packet as possible. As a minimum, it must contain the address or as much as was delivered. It is desirable to include all information up to the PDU.
INT alcInterMsgSync	1.3.6.1.4.1.1978.2.10.1.2.1.12	INTEGER	read-write	add S1, S2 between concatenated messages for Tx (SECONDARY)
CTR alcInvalidAddresses	1.3.6.1.4.1.1978.2.10.1.2.1.16	Counter	read-only	A count of the number of times a Bad IA was received. This is considered a garbled message.
NUM alcInvalidAddressThres	1.3.6.1.4.1.1978.2.10.1.2.1.20	NonNegativeInteger	read-write	The value of alcInvalidAddress at which a alcInvalidAddressTrap is generated. UNITS: errors
alcLine	1.3.6.1.4.1.1978.2.10.1
alcLineEntry	1.3.6.1.4.1.1978.2.10.1.2.1		not-accessible	An entry containing information applicable to a particular ALC line.
NTF alcLineError	1.3.6.1.4.1.1978.2.10.2.1.0.1			This trap signifies that one of the thresholds has been exceeded. refer to 'alcTrapReason' for the actual cause.
NUM alcLineIfIndex	1.3.6.1.4.1.1978.2.10.1.2.1.1	InterfaceIndex	read-write	The line identifier.
INT alcLineStationType	1.3.6.1.4.1.1978.2.10.1.2.1.2	INTEGER	read-write	Defines the mode of operation for this line: Primary: We poll terminals, SecondaryPointtopoint: They poll us, we are the only device on the line, SecondaryMultidrop: They poll us, we are sharing the line.
alcLineTable	1.3.6.1.4.1.1978.2.10.1.2		not-accessible	A list of line table entries. The number of entries is given by the value of alcNumLines.
alcLineTraps	1.3.6.1.4.1.1978.2.10.2.1
alcMIB	1.3.6.1.4.1.1978.2.10
INT alcN5LiveDeadRatio	1.3.6.1.4.1.1978.2.10.1.2.1.7	INTEGER	read-write	polling ratio (1..xxx) (PRIMARY) Number of live-site poll sequences before one dead site poll. (default: 25). UNITS: polls
INT alcNIA	1.3.6.1.4.1.1978.2.10.1.2.1.13	INTEGER	read-write	Next Interchange Address in the GA response (default = 0x37) (SECONDARY)
NUM alcNumCuConfiged	1.3.6.1.4.1.1978.2.10.1.2.1.3	NonNegativeInteger	read-only	The number of CUs configured on this line. This count is incremented by one each time the a new CU is added to an underlying structure.
NUM alcNumLines	1.3.6.1.4.1.1978.2.10.1.1	NonNegativeInteger	read-only	Number of lines/CU's in the table.
INT alcNumOfIdles	1.3.6.1.4.1.1978.2.10.1.2.1.11	INTEGER	read-write	GA response with the number of idle pad character specified. (SECONDARY)
INT alcReassembleOption	1.3.6.1.4.1.1978.2.10.1.2.1.9	INTEGER	read-write	This option allows incoming messages to be reassembled into multiple a single message.
CTR alcRxOverlengthFrames	1.3.6.1.4.1.1978.2.10.1.2.1.15	Counter	read-only	A count of the number of overlength messages received. Where the size of any segment exceeded alcCuN1MaxMsgSize. This is considered a garbled segment/message. Note: a bad CCC was received is held in the RS232-like MIB.
NUM alcRxOverlengthFramesThres	1.3.6.1.4.1.1978.2.10.1.2.1.19	NonNegativeInteger	read-write	The value of alcRxOverlengthFrames at which a alcRxOverlengthFramesTrap is generated. (Overlength single message segments.) UNITS: errors
CTR alcRxT2Expireds	1.3.6.1.4.1.1978.2.10.1.2.1.17	Counter	read-only	A count of the number of times the T2 timer was exceeded. Probably indicating a concatenated message sequence was too long. This is considered a garbled message.
NUM alcRxT2ExpiredThres	1.3.6.1.4.1.1978.2.10.1.2.1.21	NonNegativeInteger	read-write	The value of alcRxT2Expired at which a alcRxT2ExpiredTrap is generated. (Overlength concatenated messages.) UNITS: errors
INT alcSegmentOption	1.3.6.1.4.1.1978.2.10.1.2.1.8	INTEGER	read-write	This option allows outgoing messages to be split into multiple segments of 'n' characters according to internal rules.
INT alcT3MinCycleTime	1.3.6.1.4.1.1978.2.10.1.2.1.5	INTEGER	read-write	time for a complete poll cycle. (0..1000 millisec) (PRIMARY only) This timer will delay the next live polling cycle if the total polling time per cycle is less than this. (default: 100). UNITS: milliseconds
INT alcT6SegmentedMsgTimer	1.3.6.1.4.1.1978.2.10.1.2.1.6	INTEGER	read-write	(1..xx seconds) Segmented message timer. UNITS: tenths of a second
INT alcTrapReason	1.3.6.1.4.1.1978.2.10.1.2.1.23	INTEGER	read-only	The reason that the alcLineError trap was generated. rx-overlength-frames - number of 'received data segments that exceeded N1' exceeded its threshold. (overlength single message segments) invalid-address - number of 'invalid addresses received' exceeded its threshold. rx-T2-expired - number of 'received messages that exceeded T2 timer'exceeded its threshold. (overlength concatenated messages)
alcTraps	1.3.6.1.4.1.1978.2.10.2
CTR alcTxOverlengthFrames	1.3.6.1.4.1.1978.2.10.1.2.1.14	Counter	read-only	A count of the number of overlength frames sent.
INT alcWildIAPoll	1.3.6.1.4.1.1978.2.10.1.2.1.10	INTEGER	read-write	Wild card IA polling option enabled/disabled (SECONDARY). Do we accept any IA when we are polled ? (default: disabled).
ngcan	1.3.6.1.4.1.1978
tiger	1.3.6.1.4.1.1978.2

RFC description

ALC (Asynchronous Leased Circuit) line and station management for Northrop Grumman network access devices.

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Download ALC-MIB

What Is ALC-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description