3. ÁְŰ¡ÀÔÀÚ Á¢¼ÓÀ» À§ÇÑ ¿ä±¸ »çÇ×
ÀϹÝÀûÀ¸·Î ÀÎÅÍ³Ý Á¢¼ÓÀº ¸Á¿¡¼ÀÇ Ç׽à Á¸Àç ¿©ºÎ(reachability)¿Í ÀÚüÀûÀÎ ÇÁ·ÎÅäÄÝ ¼öÇà ¿©ºÎ¿¡ µû¶ó Ç×½ÃÁ¢¼Ó(Full Access), Ŭ¶óÀÌ¾ðÆ® Á¢¼Ó(Client Access), Áß°è Á¢¼Ó(Mediated Access) ¹× ¸Þ¼¼Áö Á¢¼Ó(Message Access)ÀÇ 4°¡Áö·Î ºÐ·ùµÈ´Ù[2]. ÀÌÁß ÀÎÅÍ³Ý Å¬¶óÀÌ¾ðÆ® Á¢¼ÓÀº TCP/IP ÇÁ·ÎÅäÄÝ ½ºÅÃÀ» °¡Áö°í ÀÖ´Â ´Ü¸»ÀÌ ÇÊ¿ä ½Ã ÀÎÅÍ³Ý Á¢¼Ó¿¡ ÇÊ¿äÇÑ ÁÖ¼Ò Á¤º¸ µîÀ» ¼¹ö·ÎºÎÅÍ µ¿ÀûÀ¸·Î ÇÒ´ç ¹Þ¾Æ ÀÎÅͳݿ¡ ¿¬°áÇÏ´Â ÇüÅ·Î, ÇöÀç ´ëºÎºÐÀÇ ÁְŰ¡ÀÔÀÚµéÀÌ »ç¿ëÇÏ´Â Á¢¼Ó ÇüÅÂÀÌ´Ù. ¶ÇÇÑ NSP ¹× ISP°¡ °®´Â ÇÑÁ¤µÈ ÀÎÅÍ³Ý ÁÖ¼Ò ÀÚ¿ø¸¸À» ÀÌ¿ëÇÏ¿© ´ë±Ô¸ðÀÇ ÁְŰ¡ÀÔÀڵ鿡°Ô ÀÎÅÍ³Ý ¿¬°á ¼ºñ½º¸¦ Á¦°øÇϱâ À§Çؼ´Â Ŭ¶óÀÌ¾ðÆ® Á¢¼Ó ¹æ¹ýÀÇ Áö¿øÀº ÇʼöÀûÀÌ´Ù.
ÇöÀç ÁְŰ¡ÀÔÀÚµéÀº IP ÆÐŶÀ» Àü¼ÛÇϱâ À§ÇÑ 2°èÃþ ÇÁ·ÎÅäÄÝ·Î SLIP(Serial Line Internet Protocol) ¹× PPP(Point-to-Point Protocol)[3]À» ÁÖ·Î »ç¿ëÇϸç, ÀÌÁß PPP´Â ´ëºÎºÐÀÇ ÁְŰ¡ÀÔÀÚ ¹× ISPµéÀÌ »ç¿ëÇÏ´Â ÇÁ·ÎÅäÄÝÀ̱⿡ »ç¿ëÀڵ鿡°Ô Ä£¼÷ÇÏ¸ç ±âÁ¸ »ç¿ë ȯ°æÀÇ Å« º¯È¾øÀÌ ¼ºñ½º Á¦°øÀÌ °¡´ÉÇÑ ÀåÁ¡ÀÌ ÀÖ´Ù. ¶ÇÇÑ ÀÎÅÍ³Ý Å¬¶óÀÌ¾ðÆ®¡¦(»ý·«)
[1] M. Laubach, ¡¡Classical IP and ARP over ATM,¡¡ Internet Request for Comments: 1577, January 1994.
[2] D. Crocker, ¡¡To Be `On` the Internet,¡¡ Internet Request for Comments:1775, March 1995.
[3] W. Simpson, ¡¡The Point-to-Point Protocol (PPP),¡¡ Internet Request for Comments:1661, July 1994.
[4] ADSL Forum, Service Network Architecture Group(SNAG) Working Texts,
, October 1996.
[5] G. McGregor, ¡¡The PPP Internet Protocol Control Protocol (IPCP),¡¡ Internet Request for Comments:1332, May 1992.
[6] ATM Forum, ¡¡User-Network Interface(UNI) Signaling Version 4.0,¡¡ , July 1996
[7] T. Kwok, I. Verbesselt, D. Veneski, P.Y.B. Shieh, J. Loehndorf, R. Mwikalo, ¡¡An Interoperable End-to-End Broadband Service Architecture over ADSL Systems version 1.0,¡¡ Microsoft , June 1997
[8] K. Hamzeh et al., ¡¡Layer Two Tunneling Protocol ¡¡L2TP¡¡,¡¡ IETF Internet Draft, Jan 1998.
[9] ADSL Forum, ¡¡ATM over ADSL Recommendations,¡¡ Technical Report TR-002, March 1997.
[10] ADSL Forum, ¡¡Framing and Encapsulation Standards for ADSL:Packet Mode,¡¡ Technical Report TR-003, June 1997.
[11] ATM Forum, ¡¡Frame based User-to-Network Interface(FUNI) Specification v2,¡¡ December 1996.