RFC 1278 String encoded P-Address November 1991 o Must deal with selectors in the following encodings: -- IA5 -- Decimal digits encoded as IA5 (this is the most common syntax in Europe, as it is required by X.400(84) and should receive a straightforward encoding) -- Numeric encoded as a 16 bit unsigned integer (US GOSIP). This is mapped onto two octets, with the first octet being the high order byte of the integer. -- General Hexadecimal o Should give special encodings for the ad hoc encoding proposed in ``An interim approach to use of Network Addresses'' [HK91]. -- X.25(80) Networks -- TCP/IP Networks o Should be extensible for additional forms. o Should provide a reasonably compact representation . 3 Format The_BNF_is_given_in_figure_1.__________________________________________ ::= [0-9] ::= [0-9a-zA-Z+-.] ::= [0-9a-zA-Z-.] ::= [0-9a-fA-F] ::= ::= | | ::= 10 | ::= | Hardcastle-Kille