Abstract
Data link level forwarding provides simple and fast packet forwarding capability. One primary reason for the simplicity of layer 2 forwarding comes from its short, fixed length labels. A node forwarding at network layer must parse a relatively large header, and perform a longest-prefix match to determine a forwarding path. When a node performs layer 2 forwarding, it can do direct index lookup into its forwarding table with the short header. It is arguably simpler to build layer 2 forwarding hardware that it is to build layer 3 forwarding hardware because the layer 2 forwarding function is less complex (Callon et al., 1997). By bypassing the conventional IP forwarding (the packet assembly/reassembly) process using cell-relaying, we could dramatically reduce both the IP packet processing delay and the queuing delay at the router (Esaki et al., 1997). The paper targets the problem of managing and reducing delays in IP over ATM communications that are associated with the implementation of IPv6 protocol.
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References
Abe, G. (1997). Technical Foundations of Residential Broadband. Macmillan Publishing, USA.
Callon, R. et al. (1997). "A Framework for Multiprotocol Label Switching." Internet Draft <draft-ietf-mplsframework-00.txt>. Network Working Group, May.
Deering, S. and R. Hinden. (1995). "Internet Protocol, Version 6, Specification." RFC 1883, Xerox PARC, Ipsilon Networks Inc., December.
Doolan, P. et al. (1996). "Tag Distribution Protocol." Internet Draft <draft-doolan-tdp-spec-00.txt>, Cisco Systems Inc., September.
Esaki, H. et al. (1997). "White Paper on CSR (Cell Switch Router) Provided by TOSHIBA Corporation." Toshiba Corp., April.
Feldman, N. and A. Viswanathan. (1997). "ARIS Specification." Internet Draft <draft-feldman-aris-spec-00.txt>, IBM Corporation, March.
Katsube, Y. et al. (1997). "Cell Switch Router-Architecture and Protocol Overview." Internet Draft <draftkatsube-csr-arch-00.txt>, Toshiba Corp., December.
ATM Forum. (1995). LAN Emulation over ATM, version 1.0, February.
Laubach, M. (1994). "Classical IP and ARP over ATM." RFC 1577, January.
Loukola, M.V. (1997). "Data Link Level Forwarding for IPv6 Packets On ATMLinks." Licentiate's Thesis, HUT, November.
Loukola, M.V. and J.O. Skyttä. (1998). "IPv6 over ATM Flow-handling." Computer Communications Journal 21(13), 1124–1130, April.
Loukola, M.V. and J.O. Skyttä. (1998). "Enhanced Augmented IP Routing Protocol (EAIRP) in IPv6 environment." In Proc. 1st International Conference on Telecommunications and Electronic Commerce, Nashville, TN, November 20–22, pp. 365–371.
ATM Forum. (1997). Multiprotocol over ATM (MPOA), version 1.0, June.
Newman, P. et al. (1996). "Ipsilon Flow Management Protocol Specification for IPv4 Version 1.0." Ipsilon Networks Inc., RFC 1953, May.
Newman, P. et al. (1996). "Ipsilon Technical White Paper on IP Switching." Ipsilon Networks Inc., July.
Rosen, E.C. et al. (1998). "Multiprotocol Label Switching Architecture." Internet Draft <draft-ietf-mpls-arch-02.txt>, Cisco Systems Inc., July.
World Wide Web Consortium. (1995). "LightStream 2020 Multiservice ATM Switch." Cisco Brochure, Cisco Systems, Inc., September, url: http://cio.cisco.com/warp/public/641/16.html, url valid: March 10, 1999.
World Wide Web Consortium. (1997). "TCP/IP Router Tests, v2.5." Digital Equipment Corporation, url: http:// ftp.digital.com/pub/net/ip/routing/rtests/posting-tcp-ip, url valid: March 10, 1999.