Method and apparatus for stream adaption in a packet switched network

A method for carrying descriptor information relating to options for stream adaptation in a packet switched network in a PATH SENDER-TSPEC object included in a RSVP PATH message using a RSVP signaling protocol, and wherein the descriptor information comprises Layer Independent Descriptor (LID) information and a Label to Codepoint Converter that includes:

• a Label From portion including a LID label that is to be mapped to a given DiffSery Code Point value;
• a Label To portion including the last LID label and corresponding DiffSery Code Point value if a given range of LID labels is to be mapped;
• and
• a Code Point portion that includes the appropriate DiffSery Code Point to which the corresponding LID label is to be mapped.

An apparatus for use in a packet switched network comprising a processor, wherein the processor is configured to carry descriptor information relating to options for stream adaptation in the packet switched network using an existing QoS-NSLP QoS Model (QOSM) of Next Step in Signaling (NSIS) signaling protocol to embed the descriptor information, and wherein the descriptor information comprises Layer Independent Descriptor (LID) information and a Label to Codepoint Converter that includes:

• a Label From portion including a LID label that is to be mapped to a given DiffSery Code Point value;
• a Label To portion including the last LID label and corresponding DiffSery Code Point value if a given range of LID labels is to be mapped;
• and
• a Code Point portion that includes the appropriate DiffSery Code Point to which the corresponding LID label is to be mapped.

An apparatus for use in a packet switched network comprising a processor, wherein the processor is configured to carry descriptor information relating to options for stream adaptation in the packet switched network in a PATH SENDER-TSPEC object included in a RSVP PATH message using a RSVP signaling protocol and the processor further comprises a RSVP Router, and wherein the descriptor information comprises Layer Independent Descriptor (LID) information and a Label to Codepoint Converter that includes:

• a Label From portion including a LID label that is to be mapped to a given DiffSery Code Point value;
• a Label To portion including the last LID label and corresponding DiffSery Code Point value if a given range of LID labels is to be mapped;
• and
• a Code Point portion that includes the appropriate DiffSery Code Point to which the corresponding LID label is to be mapped.