The set of ports to which this filter is applied. Each octet within the value of this object specifies a set of eight ports, with the first octet specifying ports 1 through 8, the second octet specifying ports 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered port, and the least significant bit represents the highest numbered port. Thus, each port of the TokenRing Switch is represented by a single bit within the value of this object. If that bit has a value of '1' then that port is included in the set of ports; the port is not included if its bit has a value of '0'. All frames with destination address equal to the station address corresponding to this entry and entering from any of the specified ports will be dropped. Setting this object with a MIB instance corresponding to the dotted decimal MAC address and a filter type, with the set value equal to the mask of ports you want to filter will create an entry in the table. Ex. MIB instance: 16.0.90.3.0.36.1 SNMP set value: 7F 00 00 00 This would create a filter entry with the following characteristics: MAC Address: 10 00 5A 03 00 24 (canonical format) Filter Type: source-filter Filter Ports: 2 3 4 5 6 7 8