Why use an Exchange Point?

• Routers are attached to exchange traffic

• MLPA, bilateral, customer/transit relationships

• Examples in Africa:

  • JINX - Johannesburg, South Africa
  • KIXP - Nairobi, Kenya
  • MOZIX - Maputo, Mozambique
  • UIXP - Kampala, Uganda
  • TIXP - Dar es Salaam, Tanzania

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- Routers are attached to exchange point medium.

- Various types of peering relationships are possible at an exchange point

- MLPA - multi-lateral peering agreement

(every peer agrees to peer with every other peer)

- Bilateral - exchange of information between two peers

- Customer - one ISP provides transit for another

- Route Server - third-party bilateral peering

- Cheaper and more efficient than setting up multiple private exchanges.