This object governs which interface types are visible to SNMP management clients. The object is a variable length octet string that is interpreted as a bit mask. Each bit respresents a specific Juniper interface type that can be included or excluded in the standard interface tables. For each bit position in each octet of the string, a '1' or '0' indicates the corresponding interface type is either filtered (compressed) from the interface MIB tables, or included respectively. Individual bit definitions follow the JuniIfType convention defined in the Juniper-UNI-IF-MIB. For example, ip(0) and ppp(1) correspond to bit definitions 0 and 1 respectively. In each octet, bit 0 is least significant, bit 7 most significant.