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19 Nov 2001TL;DR: In this paper, a computer implemented method and apparatus for an attribute-oriented routing update is described, where the attributes are stored in an attribute table as a portion of the routing table and the attributes do not include the conventional network prefixes.
Abstract: A computer implemented method and apparatus for an attribute-oriented routing update is described. The method comprises selecting an updated set of attributes in a routing table before selecting a set of updated destinations associated with the selected set of attributes, wherein the attributes are stored in an attribute table as a portion of the routing table and the attributes do not include the conventional network prefixes. An update message that includes the set of updated destinations for the set of attributes is then generated. The method is also extended to extraction of unreachable destinations by using a dummy attribute in the routing table, wherein the dummy attribute is selected first, followed by extracting the unreachable destinations.
143 citations
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21 May 1999
TL;DR: In this paper, a network policy management system and methods define service templates, which contain information on the topologies of services such as video calls, web services, order processing applications, or the like.
Abstract: A network policy management system and methods define service templates. The service templates contain information on the topologies of services such as video calls, web services, order processing applications, or the like. The service templates also contain information about the quality of service required by each of the data flows which will be generated when an instance of the service is used. The policy management system allows users to add new services by selecting a service template and specifying endpoints for the service on a map of the network. The system automatically generates updated packet forwarding rules for use at a plurality of packet processing devices in the network.
130 citations
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21 May 1999TL;DR: In this article, a classification method is proposed to match each parameter value in a packet signature against tables in a hierarchy of linked tables in order to provide different levels of QoS for different data flows.
Abstract: Providing different levels of quality of service for different data flows being transported over a data link requires a very fast way to classify individual packets. Providing meaningful classification generally requires classifying data packets in several dimensions. A classification method represents a rule base as a hierarchy of linked tables and sequentially matches each parameter value in a packet signature against tables in the hierarchy. The method supports longest prefix matching and avoids time consuming backtracking by adding rules to the rule base.
126 citations
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27 Oct 2004TL;DR: In this paper, the authors describe methods and apparatus for rerouting network traffic in the case of failure of a primary link coupling the network element to the node, and in response to a failure of the primary link, the network elements reroutes network traffic via one or more backup paths without having to notifying and waiting for a response from a head end node that originates the network traffic.
Abstract: Methods and apparatus for rerouting network traffic are described herein. In one embodiment, an example of process includes maintaining as a part of a routing table of a network element information regarding one or more backup links leading to a node using label switched protocols (LSPs), the node being adjacent to the network element, and in response to a failure of a primary link coupling the network element to the node, the network element rerouting network traffic to the node via the one or more backup paths without having to notifying and waiting for a response from a headend node that originates the network traffic. Other methods and apparatuses are also described.
114 citations
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21 May 1999TL;DR: In this paper, the authors proposed a hierarchical policy tree-based scheduling method for data flows over a data link, which can provide shorter latencies for higher priority packets than can many prior scheduling methods.
Abstract: Providing different levels of quality of service for different data flows being transported over a data link requires a very fast way to schedule individual packets for forwarding on the data link. The invention provides scheduling methods which give preference to higher priority packets while treating lower priority packets fairly. The methods can provide shorter latencies for higher priority packets than can many prior scheduling methods. The methods and apparatus of the invention are readily adaptable for use with scheduling rules provided in the form of hierarchical policy trees.
112 citations
Authors
Showing all 98 results
Name | H-index | Papers | Citations |
---|---|---|---|
Renwei Li | 19 | 58 | 1038 |
G. Apostolopoulos | 16 | 28 | 2316 |
Siegfried Luft | 10 | 16 | 756 |
Ravikrishna Cherukuri | 9 | 11 | 268 |
Albert Jining Tian | 8 | 14 | 366 |
David Stiles | 8 | 14 | 213 |
Peter Arberg | 7 | 8 | 214 |
Gerald Neufeld | 7 | 11 | 134 |
Kishore K. Seshadri | 7 | 7 | 372 |
Paul Terry | 6 | 8 | 590 |
Ronald Leonard Westfall | 6 | 7 | 413 |
Sharath Narahari | 5 | 14 | 59 |
Ranjit J. Rozario | 5 | 6 | 149 |
Ramesh Duvvuru | 5 | 11 | 58 |
James C. Pang | 4 | 6 | 45 |