ZhoneAAL2-MIB: View SNMP OID List / Download MIB

ATM Adaptation Layer 2 (AAL2) MIB

Traps for the AAL2 MIB.

Alarm Indication Signal - a signal, associated with a maintenance alarm detected on a defective maintenance span, that is transmitted in the direction of the defect as a substitute for the normal signal. Its purpose is to show downstream entities that a defect has been identified, so that other maintenance alarms consequent to this first defect can be inhibited. The external bit stream representation of AIS may be an all 1s signal.

Remote Alarm Indication - a signal transmitted upstream from a terminal that has detected defects persisting long enough to constitute a received signal failure. Its purpose is to report in the backward direction that there is an interruption of service in the forward direction.

Alarm Indication Signal - a signal transmitted in the downstream direction from the AAL type 2 connecting point that first detects a defect affecting the AAL type 2 connection; this includes defects indicated by lower layers.

Remote Defect Indication - a signal transmitted upstream by an AAL type 2 endpoint that is in an alarm state as the result of having received an AAL type 2 connection AIS or having detected a defect that affects the AAL type 2 connection.

Indicates the the status of the PVC has gone down.

This trap is generated when the number of Bad Sequence errors exceeds the aal2AlarmConfigThreshCellLoss for a 15-minute interval. A bad sequence error is detected when some cells have been lost.

This trap is generated when the number of congestion events exceeds the aal2AlarmConfigThreshCongestion for a 15-minute interval.

A notification is sent when the operational status of an ELCP interface group changes.

The AAL2 Virtual Channel Link (VCL) Table This table contains configuration and state information of a bi-directional AAL2 Virtual Channel Link (VCL) at an ATM interface. Each VCL entry has an associated Connection Identifier (CID) table, comprised of one or more CID entries. Each VCL entry refers to an Audio Profile (AP) by type (pre-defined or user-defined) and index into an AP table. An AAL2 VCL entry is created by the agent when an RFC2515 (ATM-MIB) atmVclEntry of atmVccAalType 2 is created. Objects in the row entry can by modified by CLI or ZMS if the connection is down. Deletion of AAL2 VCL entries is controlled by the rfc2515 (ATM-MIB) atmVclRowStatus.

An entry in the AAL2 Virtual Channel Link (VCL) Table. Indexed by ifIndex, atmVclVpi from atmVclTable, and atmVclVci from atmVclTable. An AAL2 VCL entry or row (aal2VclEntry) is 'automatically' created by the agent when an rfc2515 (ATM-MIB) atmVclEntry with atmVccAalType 2 is created. The request to create an RFC2515 atmVclEntry can originate at either CLI or ZMS. Once the row exists, objects within the row with read-write access can by modified by CLI or ZMS if the connection is down. Deletion of an aal2VclEntry is managed by the rfc2515 (ATM-MIB) atmVclRowStatus. Note there is no RowStatus in the aal2VclEntry, whereas there is an atmVclRowStatus in the rfc2515 atmVclEntry.

STR-VMOA-LES-01-00 4.1.1 Application Identifier (AppId) The Application Identifier (AppId) specifies protocol combinations used between IWFs. The following AppId values can be found at the ATM Forum public web site in section 5 of 'ATM Forum Well-known Addresses and Assigned Codes'. 0000000A Loop Emulation Service using CAS (POTS only) without ELCP 0000000B Loop Emulation Service using PSTN signalling (POTS only) without ELCP. Note: This application is not currently supported. 0000000C Loop Emulation Service using PSTN signalling (POTS only) with ELCP. Note: This application is not currently supported. 0000000D Loop Emulation Service using DSS1 in support of BRI (BRI only) without ELCP 0000000E Loop Emulation Service using DSS1 in support of BRI (BRI only) with ELCP. Note: This application is not currently supported. 0000000F Loop Emulation Service using CAS in support of POTS, and DSS1 in support of BRI (without ELCP). Note: This application is not currently supported. 00000010 Loop Emulation Service using PSTN signalling in support of POTS, and DSS1 in support of BRI (without ELCP).Note: This application is not currently supported 00000011 Loop Emulation Service using PSTN signalling in support of POTS,and DSS1 in support of BRI (with ELCP). Note: This application is not currently supported. 00000012 Loop Emulation Service using other variety of CCS. Note: This application is not currently supported. 00000013 Unspecified mode of Loop Emulation Service. Note: This application is not currently supported. 000000FF This is a Zhone proprietary application id and indicates that the protocol is Jetstream Aal2. By default this value is set to casPotsOnlyNoElcp. Enumeration: 'dss1BriOnlyNoElcp': 13, 'pstnPotsOnlyElcp': 12, 'casPotsDss1BriNoElcp': 15, 'jetstream': 255, 'dss1BriOnlyElcp': 14, 'pstnPotsDss1BriNoElcp': 16, 'pstnPotsOnlyNoElcp': 11, 'casPotsOnlyNoElcp': 10, 'pstnPotsDss1BriElcp': 17, 'otherCcs': 18.

STR-VMOA-LES-01-00 4.1.2 VCC Identifier (VCCI) To distinguish multiple VCCs, each shall be assigned a VCCI. The creator of an SVC shall assign its VCCI. The VCCI of a PVC is mutually provisioned. The VCCI shall be unique for all VCCs between a CP-IWF and a CO-IWF, but may be repeated with other CP-IWF/CO-IWF pairings. Between a CP-IWF and CO-IWF, a VCCI + CID pair is enough to identify an AAL2 channel.

STR-VMOA-LES-01-00 4.1.3 Signaling VCC Identifier (SigVCCI) If an AAL2 VCC is controlled by CCS, then SigVCCI = VCCI is indicated. Conversely if SigVCCI = VCCI then the AAL2 VCC contains CCS, which controls the AAL2 channels within that VCC.

The Audio Profile for this VCL entry is specified by the Audio Profile identifier. The range of valid Audio Profile identifiers is well-defined. The Audio Profile identifier indexes into the AAL2 Audio Profile table containing the audio profiles corresponding to the specific identifier. For pre-defined audio profiles, the range of valid Identifier values is 1..255. From STR-VMOA-LES-01-00 Annex A, Identifiers defined by the ATM Forum are: * 1-6, allocated to af-vtoa-0113.000 * 7: PCM-64, ADPCM-32 and silence (pcm64Adpcm32Silence) * 8: PCM-64 and silence (pcm64Silence) * 9: PCM-64 without silence (pcm64) * 10: PCM-64, ADPCM-32 without silence (pcm64Adpcm32) *11-255: Reserved for future ATM Forum assignment If the Audio Profile is user-defined, the range of valid identifiers is 256..512. See the descriptions for the AAL2 Audio Profile tables.

STR-VMOA-LES-01-00 4.1.4 SSCS Type The SSCS type that applies to each channel of an AAL2 VCC will vary according to the usage of that channel. Channels that are used to carry media streams (POTS or ISDN B-channels) shall use the SSCS defined in I.366.2. Channels that are used to carry control and management plane traffic (CCS, ELCP, ISDN D-channels and LES-EOC) shall use the SSCS defined in I.366.1. Channels that are used to carry Jetstream Voice shall use SSCS value of jetstreamvoice. Valid values are i3661 (I.366.1), i3662 (I.366.2), jetstreamvoice. Enumeration: 'i3661': 1, 'i3662': 2, 'jetstreamvoice': 3.

Maximum length of a CPS-SDU (Max_CPS-SDU_Length). Permitted values: 45 or 64 octets.

Maximum number of multiplexed channels. Peer-to-peer significance. Valid range of values is 1..255.

Minimum CID value for AAL2 user channels. Valid range is 1..255. If the field atmVccAal2AppId is set to casPotsOnlyNoElcp then the valid range for aal2VclMinCidForAal2UserChannels and aal2VclMinCidForAal2UserChannels is between 16 and 128. If the field atmVccAal2AppId is set to dss1BriOnlyNoElcp then the valid range for aal2VclMinCidForAal2UserChannels and aal2VclMinCidForAal2UserChannels is between 129 and 223. Also the aal2VclMaxCidForAal2UserChannels must be greater than aal2VclMinCidForAal2UserChannels. For Jetstream app-id, this Cid value represents the port number which the phone is on and the valid range is 1 to 254. The range for non-Jetstream applications is 16 to 255. By default because atmVccAal2AppId is set to casPotsOnlyNoElcp the default value of this field is 16.

Maximum CID value for AAL2 user channels. Valid range is 1..255. Maximum CID is 255. If the field atmVccAal2AppId is set to casPotsOnlyNoElcp then the valid range for aal2VclMinCidForAal2UserChannels and aal2VclMinCidForAal2UserChannels is between 16 and 128. If the field atmVccAal2AppId is set to dss1BriOnlyNoElcp then the valid range for aal2VclMinCidForAal2UserChannels and aal2VclMinCidForAal2UserChannels is between 129 and 223. Also the aal2VclMaxCidForAal2UserChannels must be greater than aal2VclMinCidForAal2UserChannels. For Jetstream app-id, this Cid value represents the port number which the phone is on and the valid range is 1 to 254. The range for non-Jetstream applications is 16 to 255. By default because atmVccAal2AppId is set to casPotsOnlyNoElcp the default value of this field is 127.

The Channel Identifier is one of the indicies for the CID table, aal2CidTable. The Application Identifier, atmVccAal2AppId, determines the valid range of values for the aal2Cid. The next CID, aal2VclNextCid, indicates the next valid aal2Cid that can be used to create a new row in the aal2CidTable. A value of 0 indicates that an aal2Cid is not available for a given atmVccAal2AppId. The agent manages this value. Range of valid values is 0, 16..255. Also see the description for aal2Cid.

Value of the 'combined use' Timer_CU. The combined use Timer_CU assures that CPS-Packets with one or more octets already packed, wait at most the duration of Timer_CU before being scheduled for transmission (actual transmission takes place after receipt of a MAAL_SEND.request primitive from Layer Management).

The service provided is the transfer of audio signals (voice, voiceband data, and facsimile). The data unit traversing the SAP (SSCS SDU) contains either a voice encoding or a silence encoding. Silences are conveyed across the SAP either explicitly by a Silence Insertion Descriptor (SID) data unit, or implicitly by a Null data unit. Valid values are: - enabled. - disabled. - enabledEchoCancelOff: audio service enabled with echo cancellation and silence supression off. - enabledDynamic: audio service enabled with ability to dynamically disable silence supression, silence detection, echo cancellation and compression algorithms on a per-call basis. Enumeration: 'disabled': 2, 'enabledEchoCancelOff': 3, 'enabled': 1, 'enabledDynamic': 4.

The service provided is the transfer of circuit mode data. The circuit mode data service is an emulation of the N*64 kbit/s (N = 1, 2, ..., 30) unrestricted, 8 kHz structured circuit mode service of Recommendations I.231.1 and I.231.10. The value N = 31 is also allowed. The value of N does not change during the lifetime of a call. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

Frame mode data is an intermittent data stream containing delimited units of information, possibly of varying size, with idle intervals between them. The service provided is the transport of data units as specified in the Transmission Error Detection service of Recommendation I.366.1. There is no assurance of data unit delivery, but if delivered, the relative sequence and the bit integrity of data units are assured. This service corresponds to the service provided by the Common Part of AAL type 5, Recommendation I.363.5, except that the option of corrupted data delivery is not available. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

Facsimile Demodulation/Remodulation is the process of detecting facsimile traffic, extracting digital information from the incoming analogue modulated signal, transporting this across a trunk in packet formats, and reproducing the facsimile control and image information by remodulation at the other end. The service provided is the transfer of demodulated facsimile image information and control information, from the demodulating User to the remodulating User. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

Channel Associated Signalling Bits are bits dedicated for connection control across a 1544 kbit/s or 2048 kbit/s interface that carries 64 kbit/s channels. Procedures are based on the state of up to four signalling bits (A, B, C, D) that are allocated per channel per multiframe. See I.366.2 3.1.3.2/G.704 and 5.1.3.2/G.704. The service provided is the transfer of channel associated signalling information, i.e. the transfer of ABCD bits. Typically, the value of the (A,B,C,D) vector does not change for extended periods of time. Valid values are enabled and disabled. For jetstream atmVccAal2AppId the only valid value is disabled. Enumeration: 'disabled': 2, 'enabled': 1.

Trunk type specifies the signaling method currently used. Valid types are loop start,ground start and loop reverse battery. The default value is loop start. An instance of this object only exists when the atmVccAal2AppId is set to casPotsOnlyNoElcp. If the atmVccAal2AppId is not equal to casPotsOnlyNoElcp the entry should be set unknown. Enumeration: 'groundstart': 3, 'unknown': 1, 'loopstart': 2, 'loopreversebattery': 4.

DTMF Dialed Digits Dialed Digits are multifrequency audio tones typically used for inter-register signalling of addresses during call set-up or for end-to-end device control during an established call. Depending on the system, codes are defined for the digits 0-9 of a telephone keypad and other auxiliary signals. The service provided is the transfer of dialed digits, namely, the transfer of five descriptors: digit type, digit character, start time, end time, and power level of the dual frequency pulse. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

MF-R1 Dialed Digits. See description for atmVccAal2DTMFDialedDigits. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

MF-R2 Dialed Digits. See description for atmVccAal2DTMFDialedDigits. Valid values are enabled and disabled. Enumeration: 'disabled': 2, 'enabled': 1.

Encoding Data Unit is an octet-aligned concatenation of one or more frames of an audio algorithm, entailing a specific format of the bits. Every audio packet and SDU contains an integral number of EDUs. Predefined profiles reference the EDUs that are defined in I.366.2 Annexes B through I. Valid values are muLaw and aLaw. Enumeration: 'aLaw': 2, 'muLaw': 1.

Maximum length for frame mode data. Valid values are 1..65535.

Max_SDU_Length indicates the maximum size SSSAR-SDU, in octets, that is allowed to be reassembled. Significance to peer-to-peer. The maximum size of an SSSAR-SDU may be restricted on a per SSSAR-connection basis with the parameter 'Max_SDU_Length'. This parameter is negotiated by signalling or management procedures. Valid values are 1..65568.

The reassembly timer RAS_Timer assures that the reassembly of an SSSAR-SDU does not exceed a certain time; if such timer supervision is not required, the timer is disabled by setting the timer value to 0. If the timer is exceeded the i366.1 receive state machine goes into the abort state, look for the end of the frame and goes back to idle. See figure 8.1 I.366.2 State transition diagram. The default is 0 milliseconds. Value of 0 means the timer is disabled.

Total cells received

Total cells sent

The number of seconds that have elapsed since the beginning of the current collection period. If, for some reason, such as an adjustment in the system's time-of-day clock, the current interval exceeds the maximum value, the agent will return the maximum value.

The AAL2 Channel Identifier (CID) Table The AAL2 Channel Identifier Table contains status, I.366.2 SSCS parameters, and I.366.1 SSCS parameters for the channel identifier. Default values for these objects are defined in the AAL2 VCL entry. Values in the AAL2 Channel Identifier entry can supercede the defaults specified in the AAL2 VCL entry. The maximum number of connections or CIDs allowed per ATM VCL is 255. Certain atmVccAal2AppID values (ie, any app running over Common Channel Signaling) can cause the auto-creation of an AAL2 CID entry. When the creation of an AAL2 VCL entry does not lead to the auto-creation of an AAL2 CID entry by the agent, a CLI or ZMS request from the CLI or ZMS can use the AAL2 CID entry RowStatus object, aal2CidRowStatus, to create an aal2CidEntry instance. In this case, an rfc2515 (ATM-MIB) atmVclEntry must exist prior to creating an AAL2 CID entry. AAL2 CID entry deletion is accomplished with the AAL2 CID entry RowStatus object, aal2CidRowStatus. If an AAL2 VCL entry is deleted, then the agent cleans up all associated AAL2 CID entries.

An entry in the Channel Identifier (CID) table. Indexed by ifIndex, atmVclVpi from atmVclTable, atmVclVci from atmVclTable, and aal2Cid.

The Channel Identifier is one of the indices for the CID table. The maximum number of connections allowed per ATM VCL is 255. Note that there are restrictions in the use of CID and in order to be LES compliant. The following assignments of AAL2 Channels and CID Allocation are specified in STR-VMOA-LES-01-00, Section 4.4. 0 Not used 1-7 Reserved for I.363.2 layer management 8 Some CPE manufactures use this CID for CCS and/or Emulated Loop Control protocol 9 If LES-EOC is supported, else not used. 10-15 for future revisions of STR-VMOA-LES-01-00 16-223 Bearer channels and ISDN D-channels 224-255 set aside for vendor-specific usage See STR-VMOA-LES-01-00 4.4 for allocation of CIDs when ELCP is not used, allocation of CIDs when ELCP is used, and implementation options for AAL2 CPS. If the ELCP is not used, the default assignment of CIDs to bearer channels and ISDN D-channels shall be as specified in this section. These default assignments may be overridden by provisioning or by management action. POTS ports at the CP-IWF shall be numbered from 1 to N, where N is the number of POTS ports that exist at the CP-IWF. CID = 16 shall be assigned to POTS port number 1, CID = 17 shall be assigned to POTS port number 2, and so on up to POTS port number N. For Jetstream applications, CID refers to port number and the valid range is 1 to 255. For non-Jetstream applications, the valid range is 16 to 255.

This object is instantiated only for a VCL which terminates a VCC (i.e., one which is NOT cross-connected to other VCLs). Its value specifies the desired administrative state of the CID. Valid values are up and down. The default is down.

The current operational status of the CID. Valid values are up, down, and unknown.

The value of sysUpTime at the time this CID entered its current operational state, indicated by aal2CidOperStatus.

The SSCS type that applies to each channel of an AAL2 VCC will vary according to the usage of that channel. Channels that are used to carry media streams (POTS or ISDN B-channels) shall use the SSCS defined in I.366.2. Channels that are used to carry control and management plane traffic (CCS, ELCP, ISDN D-channels and LES-EOC) shall use the SSCS defined in I.366.1. Channels that are used to carry Jetstream Voice shall use SSCS value of jetstreamvoice. Valid values are i3661 (I.366.1) and i3662 (I.366.2), jetstreamvoice. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'i3661': 1, 'i3662': 2, 'jetstreamvoice': 3.

Audio Service. Refer to the corresponding object in the VCL table. Valid values are: - enabled. - disabled. - enabledEchoCancelOff: audio service enabled with echo cancellation and silence supression off. - enabledDynamic: audio service enabled with ability to dynamically disable silence supression, silence detection, echo cancellation and compression algorithms on a per-call basis. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabledEchoCancelOff': 3, 'enabled': 1, 'enabledDynamic': 4.

Circuit Mode Data. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

Frame Mode Data. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

Fax Demodulation/Remodulation. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

CAS (Channel Associated Signaling). Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. For jetstream atmVccAal2AppId the only valid value is disabled. Enumeration: 'disabled': 2, 'enabled': 1.

DTMF Dialed Digits. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

MF-R1 Dialed Digits. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

MF-R2 Dialed Digits. Refer to the corresponding object in the VCL table. Valid values are enabled and disabled. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabled': 1.

PCM Encoding. Refer to the corresponding object in the VCL table. Valid values are muLaw and aLaw. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'aLaw': 2, 'muLaw': 1.

Max length frame mode data. Refer to the corresponding object in the VCL table. Valid values are 1..65535. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default.

Max_SDU_Length Refer to the corresponding object in the VCL table. Valid values are 1..65568. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default.

Reassembly timer (RAS_Timer). Refer to the corresponding object in the VCL table. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default.

Index for the preferred audio encoding format within the Audio Profile. The Index must be an agreed operating parameter between the transmitter and receiver for both directions. An aal2CidPreferredApIndex identifies an audio profile row of the selected audio profile at the aal2 Vcl.

Total cells received

Total cells sent

The number of seconds that have elapsed since the beginning of the current collection period. If, for some reason, such as an adjustment in the system's time-of-day clock, the current interval exceeds the maximum value, the agent will return the maximum value.

Used to control row creation and deletion. A row in this table is created using a single SNMP SET request with varbinds for: a) aal2CidRowStatus set to'CreateAndGo' b) the following READ-CREATE objects with a DEFVAL but whose defined default value is inappropriate: * aal2CidAdminStatus If 'createAndGo' successfully created a new row, the RowStatus will be 'active'. Subsequent to successful row creation, the RowStatus can be retrieved via an SNMP GET and the returned RowStatus value is active. If the 'createAndGo' was unsuccessful an SNMP error will be returned and a subsequent GET on the non-existent row will also return an SNMP error of noSuchInstance. An SNMP SET with the RowStatus value of 'destroy' indicates that the agent should remove the row from service and then delete it.

Total number of completed calls made on the CID.

Total number of calls blocked on the CID because there was not enough bandwidth to support the call.

The AAL2 User-defined Audio Profile Next Index Table consists of a single READ-ONLY object maintained by the agent. For a given aal2VclAudioProfileIdentifier, the entry indicates the next available index to be used for aal2ApIndex when creating user-defined entries in the AAL2 Audio Profile Table. User-defined audio profile entries have audio profile identifiers in the 256..512 range.

An entry in the AAL2 Audio Profile Next Index Table. Indexed by aal2VclAudioProfileIdentifier from aal2VclTable. Each Identifier is associated with an object whose value is used for aal2UdApIndex when creating entries in the AAL2 User-defined Audio Profile Table.

This object indicates the next available index, for the aal2VclAudioProfileIdentifier index, to be used for aal2ApIndex when creating user-defined Audio Profile entries in the AAL2 Audio Profile Table. The value 0 indicates that no unassigned entries are available. To obtain the aal2ApIndex value for a new entry, the manager issues a management protocol retrieval operation to obtain the current value of this object. After each retrieval, the agent should modify the value to the next unassigned index. After a manager retrieves a value the agent will determine through its local policy when this index value will be made available for reuse. Valid values are 0..255

AAL2 Audio Profile Table A profile is a set of entries, where each entry specifies an encoding format (see STR-VMOA-LES-01-00 Annex A) with a UUI range and length. This set defines a mapping that informs the receiver of a type 1 packet how to interpret the packet contents, i.e. which encoding format in the profile is being used. Once a profile is adopted between a transmitter and a receiver, the transmitter can select any entry of the adopted profile and the receiver shall accept any entry selected by the transmitter. Unlike the Pre-defined Audio Profile entries, which are created by the agent, the User-defined Audio Profile entries consists of READ-CREATE objects created via CLI or ZMS.

An entry in the AAL2 Audio Profile Table. Indexed by aal2VclAudioProfileIdentifier from aal2VclEntry and aal2ApIndex. Each Identifier can be associated with multiple audio profiles, each indexed by aal2ApIndex.

Index for the AAL2 Audio Profiles within an Audio Profile entry, for a given aal2VclAudioProfileIdentifier. Valid values are 1..512. Pre-defined audio profile entries are in the 1..255 range. User-defined audio profile entries are in the 256..512 range.

Minimum user to user indicator. 0 for encoding of audio. Valid values are 0..15. The default is 0 octets.

Maximum user to user indicator 15 for endcoding of audio. Valid values are 0..15. The default is 15 octets.

Indicates the multiples of the SDU for each algorithm that occur. Service data units (SDUs) for audio are defined in relation to the profile of encoding formats adopted on a given AAL type 2 connection. Each algorithm that occurs in a given profile may appear in multiple entries corresponding to packets of different lengths. These packet lengths shall align in a simple sequence, whereby each is an integral multiple of the smallest packet length that occurs for the algorithm (at a given bit rate). The smallest packet length is the SDU of the algorithm, in relation to the given profile. Valid values are 1..8. The default is 1 octets.

By I.366.2 Annex B through I, the valid values are: * G.711 Pulse Code Modulation (PCM). Two encoding laws are recommended, referred to as A-law and m-law. * G.722 Sub-Band Adaptive Pulse Code Modulation (SB-ADPCM). Note: This codec is not currently supported. * G.723.1 Note: This codec is not currently supported. * G.726-32 Adaptive Pulse Code Modulation (ADPCM) * G.727 Embedded Adaptive Pulse Code Modulation (EADPCM). Note: This codec is not currently supported. * G.728 Low Delay Code Excited Linear Prediction (LD-CELP). Note: This codec is not currently supported. * G.729-8 EDU format.Note: This codec is not currently supported. * G.729 SID packet format.Note: This codec is not currently supported. * G.729-6.4 encoding data unit format. Note: This codec is not currently supported. * G.729-12 encoding data unit format for the forward adaptive mode. Note: This codec is not currently supported. * Generic SID packet format. Note: This codec is not currently supported. The default is g711 (G.711). Enumeration: 'g728': 6, 'g722': 2, 'g723': 3, 'g72912': 10, 'g727': 5, 'g711': 1, 'g72632': 4, 'g729Sid': 8, 'genericSid': 11, 'g72964': 9, 'g729Ed': 7.

Packet time in tenths of milliseconds. Valid values are 50..110. The default is 55 tenths of milliseconds.

Audio encoding packets are accompanied by a sequence number field that is embedded within the UUI codepoint range 0-15 for type 1 packets. It is mandatory for a transmitter to increment the designated bits at the frequency corresponding to the sequence number interval specified in the profile entry that defines the last packet transmitted. The sequence number interval is the time interval for incrementing sequence numbers in the packets that convey an audio stream. This interval is specified as part of the definition of each entry in a profile. Valid values are 50..110. The default is 55 tenths of milliseconds.

Used to control row creation and deletion. A row in this table is created using a single SNMP SET request with varbinds for: a) aal2UdApRowStatus set to'CreateAndGo' b) the following READ-CREATE objects with a DEFVAL but whose defined default value is inappropriate: * aal2UdApMinUUI * aal2UdApMaxUUI * aal2UdApSduMultiples * aal2UdApAlgorithm * aal2UdApPktTime * aal2UdApSequence If 'createAndGo' successfully created a new row, the RowStatus will be 'active'. Subsequent to successful row creation, the RowStatus can be retrieved via an SNMP GET and the returned RowStatus value is active. If the 'createAndGo' was unsuccessful an SNMP error will be returned and a subsequent GET on the non-existent row will also return an SNMP error of noSuchInstance. An SNMP SET with the RowStatus value of 'destroy' indicates that the agent should remove the row from service and then delete it.

Used to control the transmission of cells during periods of silence. The default value is enabled. Enumeration: 'disabled': 2, 'enabled': 1.

Indicates the length of a packet in octets. The packet length with the MinUUI and MaxUUI are used to correctly decode the encoding format. Valid values are 1..64. The default is 44 octets

The AAL2 Common Part Sublayer (CPS) Performance table. Augments the base table, aal2VclTable. The error indications to Layer Management are summarized in this table.

An entry in the AAL2 Common Part Sublayer (CPS) Performance Table. Augments aal2VclEntry. Each row in the aal2VclTable has a corresponding row in the aal2CpsPerformanceTable.

The parity of the STF indicates transmission errors; the complete CPS-PDU was discarded.

The sequence number of the STF is wrong; if the OSF is less than 47, processing starts at the octet pointed to by the OSF, otherwise the complete CPS-PDU is discarded.

The number of octets expected for a CPS-Packet overlapping into this CPS-PDU does not match the information contained in the STF; if the value of the OSF is less than 47, processing starts at the octet pointed to by the OSF.

The OSF of the STF contains a value 48 or greater; the complete CPS-PDU is discarded.

The Header Error Control (HEC) Code of a CPS-Packet header indicates transmission errors in the CPS-Packet header; the unprocessed information in the CPS-PDU is discarded.

The length of the received CPS-Packet Payload (CPS-SDU) exceeds the maximum length indicated in 'Max_SDU_Deliver_Length'.

A partial CPS-Packet has been received previously and must be discarded due to errors detected before the reassembly of the CPS-Packet could be completed.

The Header Error Control (HEC) Code of a CPS-Packet header that was overlapping a CPS-PDU boundary indicates transmission errors in the CPS-Packet header; if the value of the OSF is less than 47, processing starts at the octet pointed to by the OSF.

The UUI field in the received CPS-Packet header contains a value ('28' or '29') that is reserved for future standardization.

The CID value in the received CPS-Packet header is not associated with a SAP.

The congestion happens when the aal2 receiver is ready to receive cells but there is no buffer ready. The receiver starts dropping cells. The receiver tries to open new buffers for cell reception only after the last cell of the discarded frame arrives. This variable represents the number of times the receiver verified the receive queue for cell reception but the queue was busy. This is called congestion event.

The AAL2 I.366.2 Service Specific Convergence Sublayer (SSCS) Performance table.

An entry in the AAL2 I.366.2 Service Specific Convergence Sublayer (SSCS) Performance Table. Each row in the aal2CidTable whose SSCS type is I.366.2 has a corresponding row in the aal2SscsI3662PerfTable.

The UUI field in the received CPS-Packet header contains a value in the reserved ranges (16..22, 28..30). See I.366.2, Table 12.

A Type 3 packet using CRC-10 validation with a checksum error will increase this counter.

Invalid UUI codepoint and UUI length columns. Does not match any Audio Profile entry, based on the VCL entry's audio profile index.

The AAL2 I.366.1 Service Specific Convergence Sublayer (SSCS) Performance table.

An entry in the AAL2 I.366.1 Service Specific Convergence Sublayer (SSCS) Performance Table. Each row in the aal2CidTable whose SSCS type is I.366.1 has a corresponding row in the aal2SscsI3661PerfTable.

The maximum permissible size for a reassembled SSSAR-SDU ('Max_SDU_Length') has been exceeded.

The reassembly timer RAS_Timer has expired.

An SSTED-PDU of length 8 or less has been received.

The value of the Length field in the SSTED-PDU does not match the length of the received SSTED-PDU.

The value of the CRC field is not equal to the CRC calculated over the received information.

VPI used for traps defined under aal2Traps.

VCI used for traps defined under aal2Traps.

This table contains thresholds that are used to control trap generation. aal2AlarmConfigTable augments the base table, aal2VclTable. All the parameters defined in this table are supported on the s100.

Each entry consists of a list of parameters that represents tresholds for the error indications defined in aal2CpsPerformanceTable. Each row in the aal2VclTable has a corresponding row in the aal2AlarmConfigTable.

The number of bad sequence number of the STF within any given 15 minutes performance data collection period, which causes the SNMP agent to send an aal2PerfCellLossThreshTrap. One trap will be sent per interval per interface. A value of `0' will disable the trap.

The number of congestion events within any given 15 minutes performance data collection period, which causes the SNMP agent to send an aal2PerfCongestionThreshTrap. One trap will be sent per interval per interface. A value of `0' will disable the trap.

The AAL2 ELCP Port Table. The AAL2 ELCP Port Table contains entries of IAD ports associated with the ELCP enabled ATM VCC. The provisioned values in the AAL2 ELCP Port Table supercede the defaults values specified in the AAL2 VCL entry.

An entry in the aal2ElcpPortTable.

The port address to identify an individual PSTN or ISDN port. This address must agree with the provisioned port number on the CPE side. PSTN and ISDN user ports have their own indenpendent numbering space.

The port type for a provisioned IAD port for an ELCP enabled ATM VCC. Valid types are pstn and isdnBra. Enumeration: 'isdnBra': 2, 'pstn': 1.

Audio Service. Refer to the corresponding object in the VCL table. Valid values are: - enabled. - disabled. - enabledEchoCancelOff: audio service enabled with echo cancellation and silence supression off. - enabledDynamic: audio service enabled with ability to dynamically disable silence supression, silence detection, echo cancellation and compression algorithms on a per-call basis. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'disabled': 2, 'enabledEchoCancelOff': 3, 'enabled': 1, 'enabledDynamic': 4.

PCM Encoding. Refer to the corresponding object in the VCL table. Valid values are muLaw and aLaw. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default. Enumeration: 'aLaw': 2, 'muLaw': 1.

Max length frame mode data. Refer to the corresponding object in the VCL table. Valid values are 1..65535. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default.

Max_SDU_Length Refer to the corresponding object in the VCL table. Valid values are 1..65568. If this value is not set by CLI or ZMS, the agent will use the AAL2 VCL entry default.

Index for the preferred audio encoding format within the Audio Profile. The Index must be an agreed operating parameter between the transmitter and receiver for both directions. An aal2CidPreferredApIndex identifies an audio profile row of the selected audio profile at the aal2 Vcl.

Used to control row creation and deletion. The valid enums are active(1), createAndGo(4) and destroy(6). Refer to Zhone-TC.mib for more details.

This table provides additional information about an ELCP interface group. This table only exists for AAL2 VCL entries that are running ELCP protocol. For each AAL2 VCL running ELCP, there will be one entry in the aal2ElcpIgTable.

An entry in the aal2ElcpIgTable.

The operational status of an ELCP interface group.

Number of times the aal2ElcpIgOperStatus has changed.

Number of LAPV frames received by this interface group.

Number of LAPV frames sent from this interface group.