xdsl2 L Config Prof Vdsl2 Car Mask

1.3.6.1.4.1.2011.2.25.251.1.5.1.2.1.4

VDSL2-specific subcarrier mask. This configuration parameter defines the restrictions, additional to the band plan, to determine the set of subcarriers allowed for transmission in both the upstream and downstream directions. The parameter shall describe the not masked subcarriers as one or more frequency bands. Each band is represented by start and stop subcarrier indices with a subcarrier spacing of 4.3125 kHz. The valid range of subcarrier indices runs from 0 to at least the index of the highest allowed subcarrier in both transmission directions among all profiles enabled by the parameter xdsl2LConfProfProfiles. Up to 32 bands may be specified. Other subcarriers shall be masked.