A string of octets containing one bit per TrBRF in the management
domain. The first octet corresponds to TrBRFs with
ciscoTsTrBRFInfoTrBRFNumber 1 through 8; the second octet to
TrBRFs 9 through 16; etc. The most significant bit of each octet
corresponds to the lowest value ciscoTsTrBRFInfoTrBRFNumber in that
octet. If the bit corresponding to a TrBRF is set to '1', then
the TrBRF transits the local device either because it was
configured to or because it was selected to automatically by the
selection algorithm.