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QSPEC Template for the Quality-of-Service NSIS Signaling Layer Protocol (NSLP) (RFC5975) Disclosure Number: IPCOM000200344D
Original Publication Date: 2010-Oct-01
Included in the Prior Art Database: 2010-Oct-07

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Ash: AUTHOR [+8]


The QoS NSIS signaling layer protocol (NSLP) [RFC5974] is used to signal QoS reservations for a data flow, provide forwarding resources (QoS) for that flow, and establish and maintain state at nodes along the path of the flow. The design of QoS NSLP is conceptually similar to the decoupling between RSVP [RFC2205] and the IntServ architecture [RFC2210], where a distinction is made between the operation of the signaling protocol and the information required for the operation of the Resource Management Function (RMF). [RFC5974] describes the signaling protocol, while this document describes the RMF-related information carried in the QSPEC (QoS Specification) object carried in QoS NSLP messages.

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Internet Engineering Task Force (IETF)                       G. Ash, Ed. Request for Comments: 5975                                          AT&T Category: Experimental                                     A. Bader, Ed. ISSN: 2070-1721                                                 Ericsson                                                          C. Kappler, Ed.                                                   ck technology concepts                                                             D. Oran, Ed.                                                      Cisco Systems, Inc.                                                             October 2010

                              QSPEC Template     for the Quality-of-Service NSIS Signaling Layer Protocol (NSLP)


   The Quality-of-Service (QoS) NSIS signaling layer protocol (NSLP) is    used to signal QoS reservations and is independent of a specific QoS    model (QOSM) such as IntServ or Diffserv.  Rather, all information    specific to a QOSM is encapsulated in a separate object, the QSPEC.    This document defines a template for the QSPEC including a number of    QSPEC parameters.  The QSPEC parameters provide a common language to    be reused in several QOSMs and thereby aim to ensure the    extensibility and interoperability of QoS NSLP.  While the base    protocol is QOSM-agnostic, the parameters that can be carried in the    QSPEC object are possibly closely coupled to specific models.  The    node initiating the NSIS signaling adds an Initiator QSPEC, which    indicates the QSPEC parameters that must be interpreted by the    downstream nodes less the reservation fails, thereby ensuring the    intention of the NSIS initiator is preserved along the signaling    path.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for examination, experimental implementation, and    evaluation.

   This document defines an Experimental Protocol for the Internet    community.  This document is a product of the Internet Engineering    Task Force (IETF).  It represents the consensus of the IETF    community.  It has received public review and has been approved for    publication by the Internet Engineering Steering Group (IESG).  Not    all documents approved by the IESG are a candidate for any level of    Internet Standard; see Section 2 of RFC 5741.

 Ash, et al.                   Experimental  ...