| Description | This field is set to a unique channel number within an APS
group. The value 0 indicates the null channel. The values
1-14 define a working channel. If the SONET LTE is not part
of an APS group this value is set to -1.
When an instance of apsChanConfigIfIndex is set equal to an
instance of ifIndex that has an ifType value of sonet(39),
apsMapChanNumber is set equal to the corresponding value of
apsChanConfigNumber.
If an instance of ifIndex that has an ifType value of
sonet(39) ceases to be equal to an instance of
apsChanConfigIfIndex, either because of a change in the
value of apsChanConfigIfIndex, or because of row deletion
in the ApsChanConfigTable, apsMapChanNumber is set to -1. |