| H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative as-level internet topologies. In Computer Networks Journal, 2004. |
....perhop queue sizes and queuing disciplines) through a target network. Thus, a packet s end to end delay accounts for congestion and for per hop queuing, propagation, and transmission delay. By default, the core emulates the characteristics of a random 20,000 node INET generated topology [6]. We randomly assign 1,000 nodes to act as clients connected to one degree stub nodes in the topology. One of these participants is randomly selected to act as the root of the SARO tree. We classify network links as being Client Stub, Stub Stub (both with bandwidth between 1 10 Mbps) Transit Stub ....
Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
....(e.g. from Caida) BGP dumps, and synthetic topology gener CREATE Target DISTILL ASSIGN BIND RUN Pipes#cores Physical client resources Topology e.g. GT ITM Distilled topology Core resource specs Virt.#Phys. Routing info Figure 2: The phases of the ModelNet architecture. ators [3, 4, 12]. ModelNet includes filters to convert all of these formats to GML (graph modeling language) Users may annotate the GML graph with attributes not provided by its source, such as packet loss rates, failure distributions, etc. The Distillation phase transforms the GML graph to a pipe topology ....
Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
....that: #### # # with # # #, and where #### # #### means that ###### ######### # #. Some authors have argued that AS vertex degree is well modeled as having power law tails [15, 22] Others have suggested that vertex degree does not clearly exhibit power law tails, although it is highly variable [9]. Since such highlyvariable distributions do not arise in simple random graphs, and since power law tails do provide a simple (albeit crude) approximation for the behavior of the true distribution, a number of papers have proposed mechanisms (more complicated than purely random connection) that ....
H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. Technical Report UM-CSE-TR-454-02, University of Michigan Computer Science, 2002.
....that: p(x) x with 0, and where a(x) b(x) means that limx 1 a(x) b(x) c. Some authors have argued that AS vertex degree is well modeled as having power law tails [15, 22] Others have suggested that vertex degree does not clearly exhibit power law tails, although it is highly variable [9]. Since such highlyvariable distributions do not arise in simple random graphs, and since power law tails do provide a simple (albeit crude) approximation for the behavior of the true distribution, a number of papers have proposed mechanisms (more complicated than purely random connection) that ....
H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. Technical Report UM-CSE-TR-454-02, University of Michigan Computer Science, 2002.
....due to various reasons. For instance, a customer AS does not necessarily announce all its connections to its provider. Only part of its connections can be discovered from the routing table of its provider. It is still an active research topic to obtain complete AS level Internet topology [11] [12]. It has been proposed in [12] to augment connections among ASs using the Internet Routing Registry (IRR) Up to ### more connections are discovered from the IRR database. However, since the records in the database are published by individual ISPs voluntarily and updated less frequently than the ....
....instance, a customer AS does not necessarily announce all its connections to its provider. Only part of its connections can be discovered from the routing table of its provider. It is still an active research topic to obtain complete AS level Internet topology [11] 12] It has been proposed in [12] to augment connections among ASs using the Internet Routing Registry (IRR) Up to ### more connections are discovered from the IRR database. However, since the records in the database are published by individual ISPs voluntarily and updated less frequently than the BGP routing tables, the ....
H. Chang, R. Govindan, S.Jamin, S. Shenker, and W. Willinger, "Towards Capturing Representative AS-level Internet Topologies", Submitted for publication, 2001
....TOPOLOGY While we do not have a complete map of the Internet at the AS level, we can discover the AS neighbors of each AS if we have access to its BGP routing table. We call the neighbors of an ASi so discovered the local view of ASi. From ASj s # A full version of this paper is available as [2]. This project is funded in part by NSF grant number ANI 0082287 and by ONR grant number N000140110617. Sugih Jamin is further supported by the NSF CAREER Award ANI 9734145, the Presidential Early Career Award for Scientists and Engineers (PECASE) 1998, and the Alfred P. Sloan Foundation ....
.... views of ASi, how complete would the inferred neighbors of ASi be compared to its own local view To answer this question, we collected (1) BGP routing tables of 41 distinct ASs from 12 existing public route servers, and (2) BGP summary data of about 70 distinct ASs from Looking Glass sites (see [2] for further details) In Fig. 1, we compare the vertex degree of a given AS inferred by its merged non local views (y axis) and its actual vertex degree (x axis) The actual vertex degree of a given AS is based on either its local BGP view or its Looking Glass data. Aside from a few exceptional ....
H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger, "Towards Capturing Representative AS-Level Internet Topologies," Tech. Rep. CSE-TR-454-02, EECS Department, University of Michigan, 2002.
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CHANG, H., GOVINDAN, R., JAMIN, S., SHENKER, S. J., AND WILLINGER, W. Towards Capturing Representative AS-level Internet Topologies. Computer Networks 44, 6 (2004).
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CHANG, H., R.GOVINDAN, JAMIN, S., SHENKER , S., AND WILLINGER, W. Towards capturing representative AS-level Internet topologies. In Journal of Computer Networks (2004).
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies Proc. of ACM SIGMETRICS 2002 (2002)
....topology captured by the Oregon route server could be checked by comparing it with the actual topology. Since the actual topology is not known, how do we check the completeness of the topology inferred from the Oregon route server data Our initial study investigating this question is reported in [10]. In this section, we summarize the methodology and main results of [10] that support our conclusion that AS maps constructed solely from Oregon route server data contain only a portion of AS connectivities on the Internet. While we do not have a complete map of the Internet at the AS level, we ....
....it with the actual topology. Since the actual topology is not known, how do we check the completeness of the topology inferred from the Oregon route server data Our initial study investigating this question is reported in [10] In this section, we summarize the methodology and main results of [10] that support our conclusion that AS maps constructed solely from Oregon route server data contain only a portion of AS connectivities on the Internet. While we do not have a complete map of the Internet at the AS level, we can re construct the neighbor(s) each AS is connected to (i.e. its ....
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger, "Towards Capturing Representative AS-Level Internet Topologies," Submitted for publication, 2001.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative as-level internet topologies. In Computer Networks Journal, 2004.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. In SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative as-level internet topologies. Computer Networks Journal, Elsevier Publisher, 44(6), 2004.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger, "Towards Capturing Representative AS-Level Internet Topologies," Computer Networks Journal, Elsevier, vol. 44, no. 6, pp. 737--755, April 2004.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger, "Towards Capturing Representative AS-Level Internet Topologies," Computer Networks Journal, Elsevier, vol. 44, no. 6, pp. 737--755, April 2004.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger., "Towards capturing representative AS-level Internet topologies," Technical Report CSE-TR-454-02, EECS Department, University of Michigan,
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. Technical Report UM-CSE-TR-454-02, Michigan, 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative AS-level Internet topologies. In ACM SIGMETRICS, June 2002.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative AS-level Internet topologies. In ACM SIGMETRICS, June 2002.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. J. Shenker, and W. Willinger. Towards capturing representative AS-Level internet topologies. In Proceedings of ACM SIGMETRICS, pages 280--281, June 15--19 2002.
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Hyunseok Chang, Ramesh Govindan, Sugih Jamin, Scott Shenker, and Walter Willinger. Towards Capturing Representative AS-Level Internet Topologies. In Proceedings of ACM SIGMETRICS, June 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards capturing representative as-level internet topologies. Computer Networks Journal, 2004. 14
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. Technical Report UM-CSE-TR-454-02, University of Michigan Computer Science, 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger, "Towards capturing representative AS-level Internet topologies, " in To appear in ACM SIGMETRICS, 2002.
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H. Chang, R. Govindan, S. Jamin, S. Shenker, and W. Willinger. Towards Capturing Representative AS-Level Internet Topologies. Technical Report UM-CSE-TR-454-02, University of Michigan Computer Science, 2002.
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