|This data type is used as the syntax of the ifType
object in the definition of the AII Link Table.
This is based on the IANAifType, as defined in
rfc1573, with the exception of the tl1 type,
which begins with us. It is defined as a very large
number, in the hope that the IANA will not catch up
with us. If they do, we must modify this textual
||other(1), ethernet-csmacd(6), ds1(18), e1(19), propPointToPointSerial(22), ppp(23), slip(28), frameRelay(32), atm(37), miox25(38), x25ple(40), modem(48), tl1(1024), ttl1(1025), e2a(1026), tbos(1027), tabs(1028), asyncTl1(1029), bridge(1030), sm100BaseFX(1031), gasp(1032), pppAsynchronous(1033)