| Description | 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 the 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 for 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
is not affected by the dot3EponFecMode object. |