The value of tmnxDiamApGxAvpNasPortBitspec specifies what number will be put in the DIAMETER NAS-Port attribute if included in DIAMETER Gx messages. This field is only applicable if the 'nasPort' bit is set in tmnxDiamApGxAvp. <origin> ::= 'o' | 'i' | 's' | 'm' | 'p' | 'v' | 'c' 'c' - ATM VCI (Virtual Channel Identifier) 'i' - inner VLAN ID 'm' - MDA number 'o' - outer VLAN ID 'p' - port number 's' - slot number 'v' - ATM VPI (Virtual Path Identifier) Maximum 32 bits can be specified. If less than 32 bits are specified, the least significant bits are used and the omitted higher bits are set to zero. Example: *12o*12i*2s01 means 'the 12 least significant bits of the outer VLAN ID, followed by the 12 least significant bits of the inner VLAN ID, followed by the two least significant bits of the slot number, followed by a zero and a one-bit', stored in network order in the least significant bits: 0000ooooooooooooiiiiiiiiiiiiss01.