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'''Cogent Communications''' is a multinational [[internet service provider]] whose network spans more than 30,000 miles and provides service in over 100 cities across 20+ countries. Cogent carries more than 11 [[petabytes]] per day of Internet traffic and connects to approximately 2,300 networks, including 330 peer [[Autonomous system (Internet)|ASes]]. Cogent believes it has grown to become the second largest carrier of Internet traffic in the world with over 17% of the world's Internet traffic crossing its network.
'''Cogent Communications''' is a multinational [[internet service provider]] whose network spans more than 30,000 miles and provides service in over 100 cities across 20+ countries. Cogent carries more than 11 [[petabytes]] per day of Internet traffic and connects to approximately 2,300 networks, including 330 peer [[Autonomous system (Internet)|ASes]]. Cogent believes it has grown to become the second largest carrier of Internet traffic in the world with over 17% of the world's Internet traffic crossing its network.


Cogent has been controversial in the ISP market for its low, $10-per-megabit pricing and its public disputes over peering with [[AOL]] (2003) <ref>{{cite news | last=Noguchi | first=Yuki | title='Peering' Dispute With AOL Slows Cogent Customer Access | publisher=[[Washington Post]] | date=[[2002-12-27]] | url=http://legalminds.lp.findlaw.com/list/cyberia-l/msg42080.html | accessdate=2006-09-28}}</ref>, [[France Telecom]] (2006)<ref>{{cite news | last=Kuri | first=Jürgen | coauthors=Smith, Robert W. | title=France Telecom severs all network links to competitor Cogent | publisher=[[Heinz Heise|Heise online]] | date=[[2005-04-21]] | url=http://morse.colorado.edu/~epperson/courses/routing-protocols/handouts/cogent-ft.html | accessdate=2006-09-28}}</ref>, [[Level 3]] (2005)<REF>[http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/10-07-2005/0004163871&EDATE Cogent Press release Level3 dispute Oct 7 2005]</ref> and [[TeliaSonera]] (March 2008). [http://gigaom.com/2008/03/14/the-telia-cogent-spat-could-ruin-web-for-many/]. In each instance, settlement-free connections have ultimately been reestablished by these providers. Cogent states that they are a strong supporter of an open and free peering policy and that they treat all data on their network equally with the highest level of priority possible.<ref>[http://www.cogentco.com/us/NetNeutrality.php]</ref>
Cogent has been controversial in the ISP market for its low, $10-per-megabit pricing and its public disputes over peering with [[AOL]] (2003) <ref>{{cite news | last=Noguchi | first=Yuki | title='Peering' Dispute With AOL Slows Cogent Customer Access | publisher=[[Washington Post]] | date=[[2002-12-27]] | url=http://legalminds.lp.findlaw.com/list/cyberia-l/msg42080.html | accessdate=2006-09-28}}</ref>, [[France Telecom]] (2006)<ref>{{cite news | last=Kuri | first=Jürgen | coauthors=Smith, Robert W. | title=France Telecom severs all network links to competitor Cogent | publisher=[[Heinz Heise|Heise online]] | date=[[2005-04-21]] | url=http://morse.colorado.edu/~epperson/courses/routing-protocols/handouts/cogent-ft.html | accessdate=2006-09-28}}</ref>, [[Level 3]] (2005)<REF>[http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/10-07-2005/0004163871&EDATE Cogent Press release Level3 dispute Oct 7 2005]</ref> and [[TeliaSonera]] (March 2008). [http://gigaom.com/2008/03/14/the-telia-cogent-spat-could-ruin-web-for-many/]. In each instance, settlement-free, except with the [[tier 1 carrier]] [[TeliaSonera International Carrier]] connections have ultimately been reestablished by these providers. Cogent states that they are a strong supporter of an open and free peering policy and that they treat all data on their network equally with the highest level of priority possible.<ref>[http://www.cogentco.com/us/NetNeutrality.php]</ref>


Cogent's AS174, has one of the highest-ranked connectivity [[degree (graph theory)|degrees]] on the Internet.<ref>[http://www.caida.org/research/topology/as_core_network/ Visualizing Internet Topology at a Macroscopic Scale] April 2005</ref><ref>[http://as-rank.caida.org/ AS ranking]</ref>
Cogent's AS174, has one of the highest-ranked connectivity [[degree (graph theory)|degrees]] on the Internet.<ref>[http://www.caida.org/research/topology/as_core_network/ Visualizing Internet Topology at a Macroscopic Scale] April 2005</ref><ref>[http://as-rank.caida.org/ AS ranking]</ref>
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==Peering==
==Peering==
On [[March 14]], [[2008]], the Internet became partitioned after Cogent stopped routing packets from European network provider [[Telia]] ([[Autonomous system (Internet)|AS]] 1299). The connection was reestablished [[March 28]], [[2008]] with interconnection points in BOTH the United States and Europe, improving Cogent's network performance in Europe.
On [[March 14]], [[2008]], the Internet became partitioned after Cogent stopped routing packets from European network provider [[Telia]] ([[Autonomous system (Internet)|AS]] 1299). The connection was reestablished [[March 28]], [[2008]] with interconnection points in BOTH the United States and Europe, improving Cogent's network performance in Europe. However the agreement with [[TeliaSonera International Carrier]] was not free, in europe, [[Cogent Communications]] is a paying customer of [[TeliaSonera International Carrier]].


==Notes==
==Notes==

Revision as of 23:31, 16 May 2008

Cogent Communications Group, Inc.
Company typePublic (Nasdaq: CCOI)
IndustryTelecommunications
Founded1999
HeadquartersWashington, D.C.
Key people
Dave Schaeffer Founder/CEO
Reed Harrison President/COO
Tad Weed CFO
Revenue$185.7 million USD (2007)
Decrease $29.9 million USD (2007)
Decrease $31.0 million USD (2007)
Number of employees
431 (February, 2008)
Websitewww.cogentco.com

Cogent Communications is a multinational internet service provider whose network spans more than 30,000 miles and provides service in over 100 cities across 20+ countries. Cogent carries more than 11 petabytes per day of Internet traffic and connects to approximately 2,300 networks, including 330 peer ASes. Cogent believes it has grown to become the second largest carrier of Internet traffic in the world with over 17% of the world's Internet traffic crossing its network.

Cogent has been controversial in the ISP market for its low, $10-per-megabit pricing and its public disputes over peering with AOL (2003) [1], France Telecom (2006)[2], Level 3 (2005)[3] and TeliaSonera (March 2008). [2]. In each instance, settlement-free, except with the tier 1 carrier TeliaSonera International Carrier connections have ultimately been reestablished by these providers. Cogent states that they are a strong supporter of an open and free peering policy and that they treat all data on their network equally with the highest level of priority possible.[4]

Cogent's AS174, has one of the highest-ranked connectivity degrees on the Internet.[5][6]

Network Map

Q1 2008 Network Map

Acquisition History

February, 2002 Acquires key assets from bankrupt PSINet one of the first internet service provider founded in 1989. Acquisition includes US customer base, Backbone network and tree Data centers. [7]

January, 2004 Acquires LambdaNet Spain and France from Firstmark Communications. [8]

Peering

On March 14, 2008, the Internet became partitioned after Cogent stopped routing packets from European network provider Telia (AS 1299). The connection was reestablished March 28, 2008 with interconnection points in BOTH the United States and Europe, improving Cogent's network performance in Europe. However the agreement with TeliaSonera International Carrier was not free, in europe, Cogent Communications is a paying customer of TeliaSonera International Carrier.

Notes

  1. ^ Noguchi, Yuki (2002-12-27). "'Peering' Dispute With AOL Slows Cogent Customer Access". Washington Post. Retrieved 2006-09-28. {{cite news}}: Check date values in: |date= (help)
  2. ^ Kuri, Jürgen (2005-04-21). "France Telecom severs all network links to competitor Cogent". Heise online. Retrieved 2006-09-28. {{cite news}}: Check date values in: |date= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  3. ^ Cogent Press release Level3 dispute Oct 7 2005
  4. ^ [1]
  5. ^ Visualizing Internet Topology at a Macroscopic Scale April 2005
  6. ^ AS ranking
  7. ^ SEC Filing PSINet acquisition Feb 2002
  8. ^ Cogent Acquires LambdaNet Spain and France Jan 6 2004


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