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Inter-domain QoS reservation establishment and modification

  • US 20070101018A1
  • Filed: 11/01/2005
  • Published: 05/03/2007
  • Est. Priority Date: 11/01/2005
  • Status: Abandoned Application
First Claim
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1. A method for establishing an inter-domain QoS reservation between a first node in a first domain and a second node in a second domain, the first and second domains being connected via a series of routers, the method comprising the steps of:

  • detecting, at the first node, that the inter-domain QoS reservation with at least one QoS characteristic is needed;

    obtaining, at the first node, network state information associated to the first domain;

    obtaining, at the first node, network state information associated to at least one possible choice of path between the first domain and the second domain;

    determining, at the first node, at least one choice of path between the first node and the second node in view of the at least one QoS characteristic;

    selecting, at the first node, from the at least one choice of path a selected path to support the inter-domain QoS reservation; and

    sending, from the first node and addressed to the second node, a reservation message to trigger establishment of the inter-domain QoS reservation.

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