CISCO-WIRELESS-DOCS-IF-MIB: View SNMP OID List / Download MIB

This is the MIB Module for MCNS compliant Radio Frequency (RF) interfaces in wireless point-to-multipoint subscriber units (SU) and wireless Head-end (HE). Glossary : The following terms are used in the MIB definitions below. MCNS : Multimedia Cable Network System P2MP : Point-Multipoint wireless system consisting of Headend (HE) and Subscriber-units (SU). HE : Head-end SU : Subscriber-unit. Attached US channel : The upstream channel on which the SU is transmitting. codeword : Data unit in a FEC (forward error correction) process. OFDM : Orthogonal Frequency Division Multiplexing. ODU : Outdoor unit (antenna). UCD : Upstream Change Descriptor. Cisco Wireless DOCSIS MIB Organization: The Cisco Wireless DOCSIS MIB provides the following categories : * Groups/Tables that are common between HE and SU * Groups/Tables that apply to SU only * Groups/Tables that apply to HE only Groups/Tables that are common between HE and SU o. cwdIfChannelTable This represents the RF channel within which upstream and downstream sub-channels operate. There will one such RF channel per point-to-multipoint interface. A RF channel identifies the portion of the RF spectrum that will be used to create a broadcast domain that will be used for communication. This channel deploys a sub-channel plan, which is used by the upstreams and downstreams. The sub-channel number for a channel is determined based on the number of sub-channels allowed and sub-channel plan version. If the maximum number of sub-channels allowed is 4 and the sub-channel plan version is 1 the spectrum can be sub divided as shown below. reference center frequency of a channel | | v +===============+ | sub 1 | The whole spectrum is used +=======+=======+ so only one sub-channel. +===============+ | 2 | 3 | The spectrum is divided into +===============+ two sub-channels. +===============+ | 2 | 6 | 7 | The spectrum is divided into +===============+ three sub-channels. +===============+ | 4 | 5 | 3 | The spectrum is divided into +===============+ three sub-channels. +===+===+===+===+ | 4 | 5 | 6 | 7 | The spectrum is divided into +===+===+===+===+ 4 sub-channels The above sub-channel planning can be extended to allow maximum number of sub-channels to be 8, 26 etc. The objects in this group are configurable only at the head-end and are read-only at the subscriber end. o. cwdIfDownstreamChannelTable This table contains the configuration information and attributes of downstream channel. The objects in this group are configurable only at the head-end and are read-only at the subscriber end. o. cwdIfUpstreamChannelTable This table contains the configuration information and attributes of upstream channel. Parameters in this table are configurable only at the Head-end, and are read-only at the SU. Only the rows that pertain to the upstream used by the subscriber unit will be available at the SU. o. cwdIfQosProfileTable This table describes the attributes of each class of service. The entries in this table are referenced from the cwdIfHeServiceEntries or cwdIfSuServiceEntries. This table is implemented at both the SU and the HE. The SU need only maintain entries for the classes of service referenced by its cwdIfSuServiceTable. o. cwdIfSignalQualityTable At the SU, this table describes the PHY signal quality of downstream channels. At the HE, it describes the PHY signal quality of upstream channels. o. cwdIfModulationTable Describes modulation parameters associated with one or more Upstream or downstream channels. Groups/Tables that apply to SU only o. cwdIfSuMacTable This table describes the attributes of each SU MAC interface, extending the information available from ifEntry. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn). o. cwdIfSuStatusTable This table maintains a number of status objects and counters for Subscriber Units. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn). o. cwdIfSuServiceTable This table describes the attributes of each upstream service queue on a SU. Groups/Tables that apply to HE only o. cwdIfHeMacTable Describes the attributes of each HE MAC interface, extending the information available from ifEntry. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn). o. cwdIfHeStatusTable For the MAC layer, this group maintains a number of status objects and counters. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn). o. cwdIfHeServiceTable This table describes the attributes of upstream service queues in a Head-end System. Entries in this table exist for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn), and for each service queue (Service ID) within this MAC layer. Entries in this table are created with the creation of individual Service IDs by the MAC layer and removed when a Service ID is removed.

This table describes the attributes of a channel group which consists of one or more downstream and upstream channels.

List of attributes for a single Channel. There is one per Point-to-multipoint card. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn).

The reference center frequency used by the upstream channels in this channel.

The maximum bandwidth that can be used by any upstream channel. The sum of the bandwidths used by all upstream channels created within this channel cannot exceed this value.

The reference center frequency used by the downstream channels in this channel.

The maximum bandwidth that can be used by any downstream channel. The sum of the bandwidths used by all downstream channels created within this channel cannot exceed this value.

This object represents a unit of measurement of mini-slots. Upstream mini-slots and bandwidth allocations are done in multiples of this unit of time.

This object represents the sub-channel plan version number common to both upstream and downstream supported by the hardware.

This table describes the attributes of downstream channels (frequency bands).

List of attributes for a single downstream channel. The index to this table is an ifIndex with an ifType of propDocsWirelessDownStream(nnn).

This identifies the sub-channel used by this downstream. The value of this object determines the usability of the other downstream channels.

The internal (DOCSIS) identification of the downstream channel within this particular MAC interface. If the interface is down, the object returns the last assigned value. If the downstream channel ID is unknown, this object returns a value of 0.

The downstream center frequency associated with this channel. The channel settings determine this value.

The bandwidth of this downstream channel. The channel settings determine this value.

At the HE, the operational transmit power. At the SU, the received power level. May be set to zero at the SU if power level measurement is not supported. If the interface is down, this object returns the configured value (if at HE), the most current value (if at SU) or zero (if not supported by the implementation).

An index into cwdIfModulationTable that describes modulation characteristics of this channel. This object returns 0 if the cwdIfModulationTable does not exist, or there is no corresponding row in that table that describes modulation characteristics of this channel.

Describes the attributes of attached upstream channels.

List of attributes for a single upstream channel. The primary index is an ifIndex with an ifType of propDocsWirelessUpstream(nnn).

This identifies the sub-channel used by this upstream.

The internal (DOCSIS) identification of the upstream channel within this particular MAC interface. If the interface is down, the object returns the most current value. If the upstream channel ID is unknown, this object returns a value of 0.

The center of the upstream frequency associated with this channel. The channel settings determine this value.

The bandwidth of this upstream channel. The channel settings determine this value.

The target receive power of this upstream channel at the headend and the transmit power of the channel at the subscriber end.

An index into cwdIfModulationTable that describes modulation characteristics of this channel. This object returns 0 if the cwdIfModulationTable does not exist or is empty.

The number of units of time-slot (measured by cwdIfChannelMiniSlotTimeBaseTick) in each upstream mini-slot. Returns zero if the value is undefined or unknown.

A measure of the current round trip time at the SU, or the maximum round trip time seen by the HE. Used for timing of SU upstream transmissions to ensure synchronized arrivals at the HE. Units are in terms of (cwdIfChannelMiniSlotTimeBaseTick/64).

This value determines the initial contention resolution back-off window used by the SU when attempting to transmit an initial ranging request. The SU randomly selects a number within the back-off window defined by this parameter then defers this number of contention transmit opportunities before actually attempting the transmission. Expressed as a power of 2. A value of 16 at the HE indicates that a proprietary adaptive retry mechanism is to be used.

This value determines the final contention resolution back-off window used by the SU when attempting to transmit an initial ranging request. The SU randomly selects a number within the back-off window defined by this parameter then defers this number of contention transmit opportunities before actually attempting the transmission. Expressed as a power of 2. A value of 16 at the HE indicates that a proprietary adaptive retry mechanism is to be used.

This value determines the initial contention resolution back-off window used by the SU when attempting to transmit data packets. The SU randomly selects a number within the back-off window defined by this parameter then defers this number of contention transmit opportunities before actually attempting the transmission. Expressed as a power of 2. A value of 16 at the HE indicates that a proprietary adaptive retry mechanism is to be used.

This value determines the final contention resolution back-off window used by the SU when attempting to transmit data packets. The SU randomly selects a number within the back-off window defined by this parameter then defers this number of contention transmit opportunities before actually attempting the transmission. Expressed as a power of 2. A value of 16 at the HE indicates that a proprietary adaptive retry mechanism is to be used.

Describes the attributes for each class of service.

Describes the attributes for a single class of service. The row operation for this table is as follows: 1. This table will be implemented as read-only at the SU. SU entries are created by the agent based on information in REG-REQ MAC messages received at the SU from HE or based on information extracted from the TFTP option file 2. Creation of entries in this table is controlled by the value of cwdIfHeQosProfilePermissions. 3. There can be default entries created by the agent at the initialization time. 3. If a table is created by agent, there should only be a single entry for each Class of Service. Multiple entries with the same Class of Service parameters are not recommended as it doesn't add any extra benefit and creates extra processing of a row in the table. 4. You CAN modify a row when it is active provided you have the right cwdIfHeQosProfilePermissions. You can also change the row to notInService and change the values. An entry in this table cannot be removed while it is referenced by an entry in cwdIfSuServiceTable (Subscriber Unit) or cwdIfHeServiceTable (Head-end System). An entry in this table cannot be modified while it is referenced by an entry in cwdIfHeServiceTable. 5. If the cwdIfHeQosProfilePermissions is createBySubscriberUnits(2) then that row cannot be modified by the management system. 6. Any arbitrary integer within the range can be used as index to create a row.

The index value which uniquely identifies an entry in the cwdIfQosProfileTable. Any arbitrary integer within the range can be used as index to create a row.

A relative priority assigned to this service when allocating bandwidth. Zero indicates lowest priority. seven highest. Interpretation of priority is device-specific.

The maximum upstream bandwidth, in bits per second, allowed for a service with this service class. Zero if there is no restriction of upstream bandwidth.

Minimum guaranteed upstream bandwidth, in bits per second, allowed for a service with this service class.

The maximum downstream bandwidth, in bits per second, allowed for a service with this service class. Zero if there is no restriction of downstream bandwidth.

The maximum number of mini-slots that may be requested for a single upstream transmission. A value of zero means there is no limit.

Indicates whether Baseline Privacy is enabled for this service class.

Controls and reflects the status of rows in this table.

At the SU, this table describes the PHY signal quality of downstream channels. At the HE, this table describes the PHY signal quality of upstream channels.

At the SU, describes the PHY signal quality of a downstream channel. At the HE, describes the PHY signal quality of an upstream channel. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessUpstream(nnn) for Head-End Systems and propDocsWirelessDownstream(nnn) for Subscriber units.

true(1) if this HE includes contention intervals in the counters in this table. Always false(2) for SUs.

Codewords received on this channel without error. This includes all codewords, whether or not they were part of frames destined for this device.

Codewords received on this channel with correctable errors. This includes all codewords, whether or not they were part of frames destined for this device.

Codewords received on this channel with uncorrectable errors. This includes all codewords, whether or not they were part of frames destined for this device.

Signal to Interference plus Noise ratio as perceived for this channel.

Describes modulation parameters associated with one or more upstream and/or downstream channels.

Describes a modulation profile for one or more upstream and downstream channels. Initial default entries may be created at system initialization time by the agent. The row operation for this table is as follows : 1. Any arbitrary index within the range can be used to create a row. 2. No individual non-index objects have to be specified in order to create an entry in this table. 3. CreateAndWait is not supported. 4. You can update/change the values in a row when the row is active. 5. The rows can be destroyed any time.

An index into the Channel Modulation table (cwdIfModulationTable) representing modulation parameters of a channel.

Controls and reflects the status of rows in this table.

The maximum bandwidth that can be used by a channel with using this modulation profile.

This represents the throughput expected of the identified radio link.

The duration of the OFDM burst used by the physical layer. This is also the duration of the MAC minislot. Not all the settings will be supported by a particular ODU. Consult the capabilities of the ODU to determine the best burst length setting to use. The exact durations are hardware and implementation dependent. Enumeration: 'medium': 3, 'veryShort': 1, 'long': 4, 'short': 2.

The quantitative level of robustness to multipath (also known as delay spread tolerance). The degree of multipath in the environment will vary with deployment. Consult installation and deployment documentation to determine the best setting to use. Enumeration: 'high': 2, 'standard': 1.

Describes the attributes of each SU MAC interface, extending the information available from ifEntry.

An entry containing objects describing attributes of each MAC entry, extending the information in ifEntry. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn).

Identifies the HE that controls this MAC domain. At the SU, this will be the source address from SYNC, MAP, and other MAC-layer messages. If the HE is unknown, returns 00-00-00-00-00-00.

Identifies the capabilities of the MAC implementation at this interface. Note that packet transmission is always supported. Therefore, there is no specific bit required to explicitly indicate this capability. Bits: 'concatenation': 1, 'atmCells': 0.

Waiting time for a Ranging Response packet.

This table maintains a number of status objects and counters for Subscriber Units.

A set of status objects and counters for a single MAC layer instance in a Subscriber unit. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn).

Current Subscriber unit connectivity state, as specified in the RF Interface Specification. Enumeration: 'ipComplete': 7, 'phySynchronized': 4, 'notSynchronized': 3, 'todEstablished': 8, 'usParametersAcquired': 5, 'operational': 12, 'notReady': 2, 'other': 1, 'paramTransferComplete': 10, 'rangingComplete': 6, 'accessDenied': 13, 'registrationComplete': 11, 'securityEstablished': 9.

Status code for this Subscriber unit as defined in the RF Interface Specification. The status code consists of a single character indicating error groups, followed by a two- or three-digit number indicating the status condition.

The operational transmit power for the attached upstream channel.

Number of times the SU reset or initialized this interface.

Number of times the SU lost synchronization with the downstream channel.

Number of times the SU received invalid MAP messages.

Number of times the SU received invalid UCD messages.

Number of times the SU received invalid ranging response messages.

Number of times the SU received invalid registration response messages.

Number of times counter T1 expired in the SU.

Number of times counter T2 expired in the SU.

Number of times counter T3 expired in the SU.

Number of times counter T4 expired in the SU.

Number of times the ranging process was aborted by the HE.

Describes the attributes of each upstream service queue on a SU.

Describes the attributes of an upstream bandwidth service queue. An entry in this table exists for each Service ID. The primary index is an ifIndex with an ifType of propDocsWirelessMacLayer(nnn).

Identifies a service queue for upstream bandwidth. The attributes of this service queue are shared between the SU and the HE. The HE allocates upstream bandwidth to this service queue based on requests from the SU and on the class of service associated with this queue.

The index in cwdIfQosProfileTable describing the quality of service attributes associated with this particular service. If cwdIfQosProfileTable is not supported or doesn't exist, this object returns the value of zero.

The number of upstream mini-slots which have been used to transmit data PDUs in immediate (contention) mode. This includes only those PDUs which are presumed to have arrived at the headend (i.e., those which were explicitly acknowledged.) It does not include retransmission attempts or mini-slots used by requests.

The number of upstream mini-slots which have been used to transmit data PDUs in dedicated mode (i.e., as a result of a unicast Data Grant).

The data PDUs transmitted directly in contention data slots expects explicit acknowledgement from the Headend. If the acknowledgement is not received the PDUs are transmitted again. This object is the number of attempts to transmit data PDUs which didn't receive acknowledgement.

The data PDUs transmitted directly in contention data slots expects explicit acknowledgement from the Headend. If the acknowledgement is not received the PDUs are transmitted again. After excessive retries the data PDUs are dropped. This object represents the number of data PDU transmission failures due to excessive retries without acknowledgment.

The number of attempts to transmit bandwidth requests which did not result in acknowledgment.

The number of requests for bandwidth which failed due to excessive retries without acknowledgment.

Describes the attributes of each HE MAC interface, extending the information available from ifEntry.

An entry containing objects describing attributes of each MAC entry, extending the information in ifEntry. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn).

Identifies the capabilities of the HE MAC implementation at this interface. Note that packet transmission is always supported. Therefore, there is no specific bit required to explicitly indicate this capability. Bits: 'concatenation': 1, 'atmCells': 0.

The interval between HE transmission of successive SYNC messages at this interface.

The interval between HE transmission of successive Upstream Channel Descriptor messages for each upstream channel at this interface.

The maximum number of service IDs that may be simultaneously active.

The amount of time between each broadcast station maintenance grant. Broadcast station maintenance grants are used to allow new subscriber units to join the network. Zero indicates that a vendor-specific algorithm is used instead of a fixed time. Maximum amount of time permitted by the DOCSIS specification is 2 seconds.

The maximum number of attempts to make on invitations for ranging requests. A value of zero means the system should attempt to range forever.

For the MAC layer, this group maintains a number of status objects and counters.

Status entry for a single MAC layer. An entry in this table exists for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn).

This object counts invalid RNG-REQ messages received on this interface.

This object counts ranging attempts that were explicitly aborted by the HE.

This object counts invalid REG-REQ messages received on this interface.

This object counts failed registration attempts, i.e., authentication failures and class of service failures, on this interface.

This object counts invalid data request messages received on this interface.

This object counts the number of times counter T5 expired on this interface. The T5 timer is the 'Wait for Upstream Channel Change Response Timer' on the Head end.

A set of objects in the HE, maintained for each Subscriber unit connected to this HE.

Status information for a single Subscriber unit. An entry in this table exists for each Subscriber unit that is connected to the HE implementing this table.

Index value to uniquely identify an entry in this table. For an individual Subscriber Unit, this index value should not change during HE uptime.

MAC address of this Subscriber Unit. If the Subscriber Unit has multiple MAC addresses, this is the MAC address associated with the Wireless interface. Each SU has only one wireless MAC interface.

IP address of this Subscriber Unit. If the Subscriber Unit has no IP address assigned, or the IP address is unknown, this object returns a value of 0.0.0.0. If the Subscriber Unit has multiple IP addresses, this object returns the IP address associated with the Wireless interface. Each SU has only one wireless MAC interface.

IfIndex of the downstream channel this Subscriber Unit is connected to. If the downstream channel is unknown, this object returns a value of zero.

IfIndex of the upstream channel this Subscriber Unit is connected to. If the upstream channel is unknown, this object returns a value of zero.

The receive power as perceived for upstream data from this subscriber unit. If the receive power is unknown, this object returns a value of zero.

A measure of the current round trip time for this SU. Used for timing of SU upstream transmissions to ensure synchronized arrivals at the HE. Units are in terms of (cwdIfUpstreamMiniSlotTimeBaseTick/64). Returns zero if the value is unknown.

Current subscriber unit connectivity state, as specified in the RF Interface Specification. Returned status information is the SU status as assumed by the HE, and indicates the following events: other(1) Any state other than below. ranging(2) The HE has received an Initial Ranging Request message from the SU, and the ranging process is not yet complete. rangingAborted(3) The HE has sent a Ranging Abort message to the SU. rangingComplete(4) The HE has sent a Ranging Complete message to the SU. ipComplete(5) The HE has received a DHCP reply message and forwarded it to the SU. registrationComplete(6) The HE has sent a Registration Response message to the SU. accessDenied(7) The HE has sent a Registration Aborted message to the SU. The HE only needs to report states it is able to detect. Enumeration: 'rangingAborted': 3, 'ipComplete': 5, 'other': 1, 'rangingComplete': 4, 'ranging': 2, 'registrationComplete': 6, 'accessDenied': 7.

The HE MAC interface index (ifType of propDocsWirelessMacLayer(nnn)) that SU connects to.

The SU's primary Service ID.

Describes the attributes of upstream service queues in a Head-end System.

Describes the attributes of a single upstream bandwidth service queue. Entries in this table exist for each ifEntry with an ifType of propDocsWirelessMacLayer(nnn), and for each service queue (Service ID) within this MAC layer. Entries in this table are created with the creation of individual Service IDs by the MAC layer and removed when a Service ID is removed.

Identifies a service queue for upstream bandwidth. The attributes of this service queue are shared between the Subscriber unit and the Head-end System. The HE allocates upstream bandwidth to this service queue based on requests from the SU and on the class of service associated with this queue.

Pointer to an entry in cwdIfHeSuStatusTable identifying the Subscriber unit using this Service Queue.

Allows a service class for a particular modem to be suppressed, (re-)enabled, or deleted altogether. Enumeration: 'disabled': 2, 'destroyed': 3, 'enabled': 1.

The index in cwdIfQosProfileTable describing the quality of service attributes associated with this particular service. If cwdIfQosProfileTable is not supported, this object returns the value of zero.

The value of sysUpTime when this entry was created.

The cumulative number of Packet Data octets received on this Service ID. The count does not include the size of the Wireless MAC header

The cumulative number of Packet Data packets received on this Service ID.

This object specifies permitted methods of creating entries in cwdIfQosProfileTable. CreateByManagement(0) is set if entries can be created using SNMP. UpdateByManagement(1) is set if updating entries using SNMP is permitted. CreateBySubscriberUnits(2) is set if entries can be created based on information in REG-REQ MAC messages received from Subscriber units. Information in this object is only applicable if cwdIfQosProfileTable is implemented as read-create. Otherwise, this object is implemented as read-only and returns CreateBySubscriberUnits(2). Either CreateByManagement(0) or CreateBySubscriberUnits(2) must be set when writing to this object. If this object has a value of createByManagement(2) the qos entries can be created and modified by the management. If this object has a value of UpdateByManagement(1) the qos entries can be updated my management irrespective of who created it. But the management cannot create new entry in the cwdIfQosProfileTable. Bits: 'createBySubscriberUnits': 2, 'updateByManagement': 1, 'createByManagement': 0.

The compliance statement for wireless devices that implement MCNS compliant Radio Frequency Interfaces.

Group of objects implemented in both Subscriber Units and Head-end Systems.

Group of objects implemented in Subscriber Units.

Quality of Service related group of objects. This group is implemented in both Subscriber Units and Head-end Systems.

Quality of Service related group of objects. This group is implemented in Head-end Systems only.

Objects that describe modulation characteristics of a channel. This group is implemented in both Subscriber Units and Head-end Systems.

Group of objects implemented in Head-end Systems.