New Work in the ATM Forum to support LAN and IP based CoS

• Define a new ATM CoS , e.g., UBRnew

  • No bit rate conjecture required to setup VCC
  • Treatment of cells on VCC consistent with DiffServ/IEEE802.1D CoS definitions

• Work just started - schedule not yet set

• Possible approach

  • When each UBRnew VCC is setup, a priority level is specified
  • Cells on UBRnew VCCs are forwarded according to priority level

• Limitations:

  • No bandwidth or QoS guaranteed
  • FORE is pushing for this approach

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