Service Provider roles in QOS-COS

• Some service providers deploy “edge” solutions

  • PSInet, Uunet use managed CPE at customer or POP
  • Uunet, others use QOS switches in front of server farms

• Some use technology in access & core networks:

  • Committed/sustained information rates at layer 2
  • Layer 3 (e.g. RSVP flows, MPLS)

• Soon, many will use both

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