Explanation:
The portSelect group addresses port selection. It is used to define the ports to be monitored in a particular statistics, host, or matrix collection. It contains two tables. The portSelGrpTable controls the set-up of ports and ATM connection selection criteria used on behalf of any collection associated with entries in this table, such as atmHostTable. The portSelTable is then used to control the set-up of selection criteria for a single ATM port.