General Characterization Parameters for Integrated Service Network Elements (RFC2215)
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2019-Feb-15
Internet Society Requests For Comment (RFCs)
S. Shenker: AUTHOR [+1]
This memo defines a set of general control and characterization parameters for network elements supporting the IETF integrated services QoS control framework. [STANDARDS-TRACK]
Network Working Group S. Shenker Request for Comments: 2215 J. Wroclawski Category: Standards Track Xerox PARC/MIT LCS September 1997
General Characterization Parameters for Integrated Service Network Elements
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
This memo defines a set of general control and characterization parameters for network elements supporting the IETF integrated services QoS control framework. General parameters are those with common, shared definitions across all QoS control services.
This memo defines the set of general control and characterization parameters used by network elements supporting the integrated services framework. "General" means that the parameter has a common definition and shared meaning across all QoS control services.
Control parameters are used by applications to provide information to the network related to QoS control requests. An example is the traffic specification (TSpec) generated by application senders and receivers.
Characterization parameters are used to discover or characterize the QoS management environment along the path of a packet flow requesting active end-to-end QoS control. These characterizations may eventually be used by the application requesting QoS control, or by other network elements along the path. Examples include information about which QoS control services are available along a network path and estimates of the available path bandwidth.
Individual QoS control service specifications may refer to these parameter definitions as well as defining additional parameters specific to the needs of that service.
Shenker & Wroclawski Standards Track [Page 1]
RFC 2215 General Characterization Parameters September 1997
Parameters are assigned machine-oriented ID’s using a method described in [RFC 2216] and summarized here. These ID’s may be used within protocol messages (e.g., as described in [RFC 2210]) or management interfaces to describe the parameter values present. Each parameter ID is composed from two numerical fields, one identifying the service associated with the parameter (the <service_number>), and the other (the <parameter_number>) identifying the parameter itself. Because the definitions of the parameters defined in this note are common to all QoS control services, the <parameter_number> values for the parameters defined here are assigned from the "general parameters" range (1 - 127).
NOTE: <parameter_numbers> in the range 128 - 254 name parameters with definitions specific to a particular QoS control service. In contrast to the general parameters described here, it is necessary to consider both the <service_number> and <parameter_number> to dete...