ZTE-AN-EPON-SERVICE-MIB: View SNMP OID List / Download MIB

A Table of dot3 Multi-Point Control Protocol (MPCP) MIB objects. The entries in the table are control and status objects of the MPCP. Each object has a row for every virtual link denoted by the corresponding ifIndex. The LLID field, as defined in the [802.3ah] is a 2bytes register (15bits field and a broadcast bit) limiting the number of virtual links to 32768. Typically the number of expected virtual links in a PON is like the number of ONUs, which is 32-64, plus an additional entry for broadcast LLID (with a value of 0xffff).

An entry in the dot3 MPCP Control table. Rows exist for an OLT interface and an ONU interface. A Row in the table is denoted by the ifIndex of the link and it is created when the ifIndex is created. The rows in the table for an ONU interface are created at system initialization. The row in the table corresponding to the OLT ifIndex and the row corresponding to the broadcast virtual link are created at system initialization. A row in the table corresponding to the ifIndex of a virtual links is created when a virtual link is established (ONU registers) and deleted when the virtual link is deleted (ONU deregisters).

This object reflects the operational state of the Multi-Point MAC Control sublayer, as defined in [802.3ah] clause 64. When the value is true(1) the interface will act as if Multi-Point control protocol is enabled. When the value is false(2) the interface will act as if the Multi-Point control protocol is disabled. The operational state can be changed using the MpcpAdminState object.This object is applicable for an OLT,with the same value for all virtual interfaces, and for an ONU.

This object is used to define the admin state of the Multi-Point MAC Control sublayer, as defined in [802.3ah] clause 64, and to reflect its state. When selecting the value as true(1) the Multi-Point control protocol of the interface is enabled. When selecting the value as false(2) the Multi-Point Control protocol of the interface is disabled. This object reflects the administrative state of the Multi-Point control protocol of the interface. The write operation is not restricted in this document and can be done at any time. Changing dot3MpcpAdminState state can lead to disabling the Multi-point control protocol on the respective interface leading to the interruption of service of the users connected to the respective EPON interface. This object is applicable for an OLT, with the same value for all virtual interfaces, and for an ONU.

This object is used to identify the operational state of the Multi-Point MAC Control sublayer. Reading olt(1)for an OLT (server) mode and onu(2) for an ONU (client) mode. This object is used to identify the operational mode for the MPCP tables. This object is applicable for an OLT, with the same value for all virtual interfaces, and for an ONU. Enumeration: 'olt': 1, 'on': 2.

An object that reports the 'sync lock time' of the OLT receiver in increments of Time Quanta. The value returned shall be (sync lock time ns)/16. If this value exceeds (2^32-1) the value (2^32-1) shall be returned. This object is applicable for an OLT, with the same value for all virtual interfaces, and for an ONU.

An object that identifies the Logical Link identifier (LLID) associated with the MAC of the virtual link. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. The ONU and the corresponding virtual MAC of the OLT, for the same virtual link, have the same value. Value is assigned when the ONU registers. Value is freed when the ONU deregisters.

An object that identifies the source_address parameter of the last MPCPDUs passed to the MAC Control. This value is updated on reception of a valid frame with (1) a destination Field equal to the reserved multicast address for MAC Control specified in [802.3] Annex 31A, (2) lengthOrType field value equal to the reserved Type for MAC Control as specified in [802.3] Annex 31A. (3) an MPCP subtype value equal to the subtype reserved for MPCP as specified in [802.3ah] Annex 31A. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. The value reflects the MAC address of the remote entity and therefore the OLT holds a value for each LLID which is the MAC address of the ONU and the ONU has a single value which is the OLT MAC address.

An object that identifies the registration state of the Multi-Point MAC Control sublayer. When this object has the enumeration unregistered(1) the interface is unregistered and may be used for registering a link partner. When this object has the enumeration registering(2) the interface is in the process of registering a link-partner. When this object has the enumeration registered(3) the interface has an established link-partner. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. Enumeration: 'unregistered': 1, 'registered': 3, 'registering': 2.

An object that reports the interval from last MPCP frame transmission in increments of Time Quanta (TQ)-16ns. The value returned shall be (interval from last MPCP frame transmission in ns)/16. If this value exceeds (2^32-1) the value (2^32-1) shall be returned. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface.

An object that reports the interval from last MPCP frame reception in increments of Time Quanta (TQ)-16ns. The value returned shall be (interval from last MPCP frame reception in ns)/16. If this value exceeds (2^32-1) the value (2^32-1) shall be returned. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface.

An object that reports the MPCP round trip time in increments of Time Quanta (TQ)-16ns. The value returned shall be (round trip time in ns)/16. If this value exceeds (2^16-1) the value (2^16-1) shall be returned. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface.

An object that reports the maximum number of grants which an ONU can store for handling. The maximum number of grants which an ONU can store for handling has a range of 0 to 255. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. At the OLT the value should be zero.

A table of dot3 EPON FEC management objects. The entries in the table are control and status objects and statistic counters for the FEC layer. Each object has a row for every virtual link denoted by the corresponding ifIndex. The LLID field, as defined in the [802.3ah] is a 2bytes register (15bits field and a broadcast bit) limiting the number of virtual links to 32768. Typically the number of expected virtual links in a PON is like the number of ONUs, which is 32-64, plus an additional entry for broadcast LLID (with a value of 0xffff).

An entry in the dot3 EPON FEC table. Rows exist for an OLT interface and an ONU interface. A Row in the table is denoted by the ifIndex of the link and it is created when the ifIndex is created. The rows in the table for an ONU interface are created at system initialization. The row in the table corresponding to the OLT ifIndex and the row corresponding to the broadcast virtual link are created at system initialization. A row in the table corresponding to the ifIndex of a virtual links is created when a virtual link is established (ONU registers) and deleted when the virtual link is deleted (ONU deregisters).

For 100 Mbps operation it is a count of the number of times an invalid code-group is received, other than the /H/ code-group. For 1000 Mbps operation it is a count of the number of times an invalid codegroup is received, other than the /V/ code-group. /H/ denotes a special 4b5b codeword of [802.3] 100 Mbps PCS layer (clause 24), and /V/ denotes a special 8b10b codeword of the [802.3] 1000 Mbps PCS layer (clause 36). This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.

An object that indicates the support of operation of the optional FEC sublayer of the 1000BASE-PX PHY, specified in [802.3ah] clause 65.2. unknown(1) value is assigned in initialization, for non FEC support state or type not yet known. unsupported(2) value is assigned when sublayer is not supported. supported(3) value is assigned when sublayer is supported. This object is applicable for an OLT, with the same value for all virtual interfaces, and for an ONU. the FEC counters will have a zero value, when the interface is not supporting FEC. The counters: dot3EponFecPCSCodingViolation - not affected by FEC ability. dot3EponFecCorrectedBlocks - has a zero value when dot3EponFecAbility is unknown (1) and unsupported (2). dot3EponFecUncorrectableBlocks - has a zero value when dot3EponFecAbility is unknown (1) and unsupported (2). dot3EponFecBufferHeadCodingViolation - has a zero value when dot3EponFecAbility is unknown (1) and unsupported (2). Enumeration: 'unknown': 1, 'supported': 3, 'unsupported': 2.

An object that defines the mode of operation of the optional FEC sublayer of the 1000BASE-PX PHY, specified in [802.3ah] clause 65.2, and reflects its state. A GET operation returns the current mode of operation of the PHY. A SET operation changes the mode of operation of the PHY to the indicated value. unknown(1) value is assigned in initialization, for non FEC support state or type not yet known. disabled(2) value is assigned when the FEC sublayer is operating in disabled mode. enabled(3) value is assigned when the FEC sublayer is operating in FEC mode. The write operation is not restricted in this document and can be done at any time. Changing dot3EponFecMode state can lead to disabling the Forward error correction on the respective interface which can lead to a degradation of the optical link and therefore may lead to an interruption of service of the users connected to the respective EPON interface. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. The counting of the FEC counters will stop when the FEC of the interface is disabled. The counters: dot3EponFecPCSCodingViolation - not affected by FEC mode. dot3EponFecCorrectedBlocks - stops counting when Rx_FEC is not enabled. (unknown (1) and disabled (2)). dot3EponFecUncorrectableBlocks - stops counting when Rx_FEC is not enabled (unknown (1) and disabled (2)). dot3EponFecBufferHeadCodingViolation - stops counting when Rx_FEC is not enabled (unknown (1) and disabled (2)). The object: dot3EponFecAbility - indicates the FEC ability and it is not affected by the dot3EponFecMode object. Enumeration: 'disabled': 2, 'unknown': 1, 'enabled': 3.

For 10PASS-TS, 2BASE-TL and 1000BASE-PX PHYs it is a count of corrected FEC blocks. This counter will not increment for other PHY Types. Increment the counter by one for each received block that is corrected by the FEC function in the PHY. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.

For 10PASS-TS, 2BASE-TL and 1000BASE-PX PHYs it is a count of uncorrectable FEC blocks. This counter will not increment for other PHY Types. Increment the counter by one for each FEC block that is determined to be uncorrectable by the FEC function in the PHY. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.

For 1000 Mbps operation it is a count of the number of invalid code-group received directly from the link. The value has a meaning only in 1000 Mbps mode and it is zero otherwise. This object is applicable for an OLT and an ONU. At the OLT it has a distinct value for each virtual interface. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.