1、Union internationale des tlcommunications Place des Nations 1211 GENVE 20 Suisse Switzerland Suiza COVERING NOTE GENERAL SECRETARIAT INTERNATIONAL TELECOMMUNICATION UNION Subject: Corrigendum 1 Geneva, 4 February 2002 Recommendation ITU-T E.191 (03/00) TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU
2、 ITU-T Recommendation E.191 (03/2000) B-ISDN addressing Corrigendum 1 Replace clause 6.3.1 by the following: 6.3.1 ITU-IND AESA The ITU-IND AESA was established for use by ASPs for the provision of public ATM services. See Figure 2. T0209340-01SELIDPIDIDSPHO-DSP ESIAFIASPINDFigure 2/E.191 ITU-IND AE
3、SA Format The ITU-IND AESA format uses the individual AFI 77. The ITU IND is a 6 digit 3 octet fixed length numeric code (in the range 000000 to 999999) allocated by the ITU to the ASP. The HO-DSP is a 9-octet field for use by the ASP identified within the IDI. The remaining 7 octets of the ESI and SEL are for the end customers use. The ITU-IND AESA is the addressing scheme that is the preferred method for use in ASP networks. The selection of three octets for the IDI is to provide sufficient numbering capacity (1 Million) to ensure that the resource will not exhaust within the near future.
