If the board keyword is read-only or read-write.
Integer { readOnly(1), readWrite(2) }
Read-only
p.4.3.1.6.n
brdkwMode reflects the value of the keyword's ReadOnly qualifier in the NMS OAM database.
When it starts up, the OAM Database SNMP agent populates all MIB tables based upon information from the NMS OAM database. For more information, see OAM Boards table.