COST BENEFIT ANALYSIS

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COST BENEFIT ANALYSIS

• Dmitry Dolgikh, Alexei Shavaldin, Andrei Sukhov
• Samara State Aerospace University, Russia
• Delcam plc., UK
• e-mail sukhov_at_ssau.ru

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Contents

• SamaraNet
• The connection quality
• Cache hierarchy
• Installation
• Parameters for analysis
• Benefits

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SAMARA REGION

• The Samara Region is situated in the
  south-eastern part of the European Russia in the
  middle part of the Volga, Europe's biggest river.
  
• It is known, that from the times of the Second
  World War Samara (Kyibyshev) became one of the
  most important centers in the former USSR and
  currently in Russia.
• It is generally affected by geographical location
  of the city as the junction of North and South
  broadways, connecting South and North regions of
  Russia and western regions with Siberia and
  Middle Asia.

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Samara regional network for Science and Education

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Scheme of SamaraNet

• SamaraNet is based on a fiber optics backbone
  which is supported by a mixture of ATM, Fast
  Ethernet and Ethernet technologies.
• The history of Samara Regional Network for
  Science and Education (SamaraNet) began from
  August of 1995 when the first on-line IP channel
  was installed to Moscow (RAS) in framework of
  INTAS project EmNet/NIS/PhaseII.
• The network consist of central nodes in nine
  locations distributed across Samara.
• The total number of Internet working places is of
  order one thousand points.
• Our network is typical Russian Regional network
  for Science and Education

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Financial sources
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CURRENT FINANCING
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CACHE HIERARCHY

• There are the three levels of hierarchy within a
  our cache mesh
• Top level server (chache1.rbnet.ru) is placed in
  Moscow, Russian Institute for Public Networks
  (RIPN). The foreign traffic is put on this host,
  because outlet links arrive in Moscow, M-9.
  System configuration 45 GB, 512 MB of RAM.
• Basic level of mesh unites the cache servers of
  Regional Internet Servers Providers (RISP)
  connected with Samara-IX.
• Internal level includes the local servers inside
  our Regional Network for Science and Education.
• This activity including a installation,
  negotiations, announcements begins from January
  2000 and do not end currently.

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SYSTEM AND SOFTWARE REQUIREMENTS
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CACHE INSTALATION
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CURRENT CONFIGURATION
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PARAMETERS FOR ANALYSIS
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Request-destinations by toplevel-domain
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COST BENEFIT

• 30-40 of the additional traffic
• cache1.rbnet.ru - 6 Mbps of external bandwidth
  15-18 Gbyte per day (30)
• average cost of E1 to New York - 21 KUSD
  minimal - 18,5 KUSD
• annual benefit 250 000 USD