NDLI: Dual-mode routing: a generic framework for IP over ATM integrated routing

Content Provider	IEEE Xplore Digital Library
Author	Sales, B. Van Mieghem, P.
Copyright Year	1998
Abstract	Design issues for an integrated routing architecture for IP and ATM are outlined. Two separate aspects of this integration are: (1) a common routing architecture for IP and ATM (layer integration) and (2) integrating best-effort (BE) and QoS routing architecture (service integration). Whereas the first level of integration is highly recommended, we show that the second level of integration is not desirable because BE and QoS traffic have, in terms of routing, contradictory requirements. Four criteria are proposed, namely, route refreshing vs. route pinning, hop by hop vs. explicit routing, pre-computed routes vs. on-demand route computation and stable vs resource related metrics. A fifth alternative is whether or not to integrate in the routing architecture the capability to compute shortcut paths, that are bypassing layer 3 (L3) nodes and using only layer 2 (L2) devices. Using this framework, we conclude that BE traffic flows are well served by a combination of route refreshing, hop by hop routing pre-computed routes and static routing metrics while QoS routing is built on route pinning, explicit routing, on-demand route computation and resource related metrics. Finally, the ability to compute L2 shortcuts in an L2/L3 integrated routing architecture is an added value simplifying the overall network design and optimising the efficacy of the forwarding path.
Starting Page	326
Ending Page	330
File Size	24149
Page Count	5
File Format	PDF
ISBN	0818685387
DOI	10.1109/ISCC.1998.702541
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-30
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Asynchronous transfer mode Web and internet services Routing protocols Computer architecture Proposals Marketing and sales Computer networks Design optimization IP networks Resource management
Content Type	Text
Resource Type	Article

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