cadCmtsCmRegImpairedReason

Reason why CM is considered to be impaired. Reason codes 
with lower integer values take precedence over reason codes 
with higher values if multiple reasons apply to the same CM.
              
The unknownMdDsSgId reason is used whenever the MD-DS-SG-ID 
reported in the B-INIT-RNG-REQ message is 0 and the CMTS 
cannot otherwise determine which downstream service group 
the CM is contained within.
              
The unknownMdUsSgId reason is used whenever the MD-DS-SG-ID 
is known for the CM but the MD-US-SG cannot be determined 
by the topology resolution process. This reason may indicate 
an undiagnosed connectivity problem in the cable network whereby 
the true connectivity does not match the provisioned connectivity. 
It may also indicate one or more corrupted upstream channels. 
              
The badRcs reason indicates that the CM was unable to tune to 
and receive a downstream channel that is assigned to the CM 
in the RCC. This may indicate an undiagnosed connectivity problem 
or a CM receiver problem.
              
The badTcs reason indicates that CM was unable to successfully 
range on one or more upstream channels that were assigned to 
the CM in the TCC. This reason may indicate an undiagnosed 
connectivity problem in the cable network whereby the true 
connectivity does not match the provisioned connectivity. 
It may also indicate one or more corrupted upstream channels. 
This reason may also indicate that the supervision for one or 
more upstream channels cannot be found within the RCS.
              
The qamFecLockFailure reason indicates that the CM has reported 
that one or more previously known good downstream channels 
has lost FEC lock. This reason supercedes unknownMdDsSgId.
              
The t4Timeout indicates that the CM has reported that it has 
experienced a timeout event for DOCSIS timer T4 
(Periodic Ranging opportunities interval).
              
The t3Timeout reason indicates that the CM has reported that 
it has exceeded the maximum number of consecutive timeouts 
of timer T3 (ranging response timer).
              
The usStationMaintFailure indicates that C4 has detected that
CM is experiencing periodic ranging failure.

MIB

CADANT-CMTS-IF3-MIB

OID

.1.3.6.1.4.1.4998.1.1.110.1.1.5.1.1

Type

column

Access

readonly

Status

current

Parent

cadCmtsCmRegImpairedStatusEntry

Table

cadCmtsCmRegImpairedStatusTable

Siblings

4