Scipediacontent: Scipediacontent moved page Draft Content 928818045 to Choi et al 2011a

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Scipediacontent moved page Draft Content 928818045 to Choi et al 2011a

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Created page with " == Abstract == The Internet topological connectivity becomes denser over time. However the de facto routing protocol of the global Internet, BGP, lets each BGP router select..."

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== Abstract ==

The Internet topological connectivity becomes denser over time. However the de facto routing protocol of the global Internet, BGP, lets each BGP router select and propagate only a single best path to each destination network. This leads to a common concern that the rich connectivity is not fully utilized and the lack of alternative paths can reduce a network's robustness to failures as well as flexibility in traffic engineering, and can lead to slow adaptation to topological changes. Yet there have been few quantitative measurement studies on path diversity in today's operational Internet. In this paper we use iBGP routing data collected from a Tier1 ISP, ISP A , over a 2-year time period to quantify BGP next-hop diversity for all destinations. Our results show that ISP A reaches the majority of prefixes through multiple next-hop routers. We use several case studies of prefixes with different diversity degrees to identify two major factors that impact the number of observed next-hops: the ISP's path preference and the number of peering routers between large ISPs. This observation provides operational input to the current efforts on augmenting BGP to increase path diversity.

== Original document ==

The different versions of the original document can be found in:

* [http://www.dcs.gla.ac.uk/conferences/gi2011/p857-choi.pdf http://www.dcs.gla.ac.uk/conferences/gi2011/p857-choi.pdf]

* [http://xplorestaging.ieee.org/ielx5/5888675/5928760/05928930.pdf?arnumber=5928930 http://xplorestaging.ieee.org/ielx5/5888675/5928760/05928930.pdf?arnumber=5928930],
: [http://dx.doi.org/10.1109/infcomw.2011.5928930 http://dx.doi.org/10.1109/infcomw.2011.5928930]

* [https://www.irl.cs.ucla.edu/~j13park/slides-gi11.pdf https://www.irl.cs.ucla.edu/~j13park/slides-gi11.pdf],
: [http://cse.unl.edu/~byrav/INFOCOM2011/workshops/papers/p857-choi.pdf http://cse.unl.edu/~byrav/INFOCOM2011/workshops/papers/p857-choi.pdf],
: [http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.ieee-000005928930 http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.ieee-000005928930],
: [http://www.irl.cs.ucla.edu/~j13park/pathdiv.pdf http://www.irl.cs.ucla.edu/~j13park/pathdiv.pdf],
: [https://ieeexplore.ieee.org/document/5928930 https://ieeexplore.ieee.org/document/5928930],
: [https://academic.microsoft.com/#/detail/2154111817 https://academic.microsoft.com/#/detail/2154111817]

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Choi et al 2011a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 928818045 to Choi et al 2011a

Scipediacontent: Created page with " == Abstract == The Internet topological connectivity becomes denser over time. However the de facto routing protocol of the global Internet, BGP, lets each BGP router select..."