efmCuLowRateCrossing
EFM-CU-MIB ·
.1.3.6.1.2.1.167.1.1.0.1
Object
notification
This notification indicates that the EFMCu port's data rate
has reached/dropped below or exceeded the low rate threshold,
specified by efmCuThreshLowRate.
This notification MAY be sent for the -O subtype ports
(2BaseTL-O/10PassTS-O) while the port is Up, on the crossing
event in both directions: from normal (rate is above the
threshold) to low (rate equals the threshold or below it) and
from low to normal. This notification is not applicable to
the -R subtypes.
It is RECOMMENDED that a small debouncing period of 2.5 sec,
between the detection of the condition and the notification,
is implemented to prevent simultaneous LinkUp/LinkDown and
efmCuLowRateCrossing notifications to be sent.
The adaptive nature of the EFMCu technology allows the port to
adapt itself to the changes in the copper environment, e.g.,
an impulse noise, alien crosstalk, or a micro-interruption may
temporarily drop one or more PMEs in the aggregation group,
causing a rate degradation of the aggregated EFMCu link.
The dropped PMEs would then try to re-initialize, possibly at
a lower rate than before, adjusting the rate to provide
required target SNR margin.
Generation of this notification is controlled by the
efmCuLowRateCrossingEnable object.
Context
- MIB
- EFM-CU-MIB
- OID
.1.3.6.1.2.1.167.1.1.0.1- Type
- notification
- Status
- current
- Parent
- efmCuPortNotifications
Syntax
No syntax metadata recorded.
Values & Constraints
No enumerated values or constraints recorded.
Related Objects
Notification Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| IF-MIBifSpeed An estimate of the interface's current bandwidth in bits
per second. For interfaces which do not vary in bandwidth
or for those where no accurate estimation can be made, this
obj… | column | SNMPv2-SMIGauge32 | .1.3.6.1.2.1.2.2.1.5 |
| efmCuThreshLowRate This object configures the EFMCu port low-rate crossing alarm
threshold. When the current value of ifSpeed for this port
reaches/drops below or exceeds this threshold, an
efmCuLo… | column | Kbps Unsigned32 | .1.3.6.1.2.1.167.1.1.1.1.7 |