coIfDwdmChannelGroupBitmap 1.3.6.1.4.1.9.10.66.1.3.3.1.4

The DWDM channel bitmap that indicates those channels that are included or excluded (depending on the value of coIfDwdmChannelBitmapLogic) from the DWDM channel group. If a frequency is included in a DWDM channel group, this does not necessarily indicate that there is a signal present at that frequency. It indicates that if a signal is present at that frequency, then that signal is included in this DWDM channel group. Bit zero of octet one corresponds to the lowest channel (representing the frequency identified by coIfDwdmChannelGroupMinFrequency), bit one of octet one corresponds to the lowest plus one channel (representing the frequency obtained by adding the values of coIfDwdmChannelGroupMinFrequency and coIfDwdmChannelGroupSpacing), and so on. When the value of coIfDwdmChannelBitmapLogic is 'carried', then channels included in the channel group will have the corresponding bit set to one in the bitmap. Bits that are set to zero represent channels that are excluded from the channel group. Channels that are not represented in the bitmap are also excluded from the channel group. When the value of coIfDwdmChannelBitmapLogic is 'blocked', then channels excluded from the channel group will have the corresponding bit set to one in the bitmap. Bits that are set to zero represent channels that are included in the channel group. Channels that are not represented in the bitmap are also included in the channel group.