Benchmarking Terminology for Resource Reservation Capable Routers
RFC 4883
Document | Type | RFC - Informational (July 2007; No errata) | |
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Authors | Andras Korn , Krisztian Nemeth , Gabor Feher , Istvan Cselenyi | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 4883 (Informational) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | David Kessens | ||
Send notices to | (None) |
Network Working Group G. Feher Request for Comments: 4883 K. Nemeth Category: Informational A. Korn BUTE I. Cselenyi TeliaSonera July 2007 Benchmarking Terminology for Resource Reservation Capable Routers Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The IETF Trust (2007). Abstract The primary purpose of this document is to define terminology specific to the benchmarking of resource reservation signaling of Integrated Services (IntServ) IP routers. These terms can be used in additional documents that define benchmarking methodologies for routers that support resource reservation or reporting formats for the benchmarking measurements. Feher, et al. Informational [Page 1] RFC 4883 Benchmarking Terms for RR Capable Routers July 2007 Table of Contents 1. Introduction ....................................................2 2. Existing Definitions ............................................3 3. Definition of Terms .............................................4 3.1. Traffic Flow Types .........................................4 3.1.1. Data Flow ...........................................4 3.1.2. Distinguished Data Flow .............................4 3.1.3. Best-Effort Data Flow ...............................5 3.2. Resource Reservation Protocol Basics .......................5 3.2.1. QoS Session .........................................5 3.2.2. Resource Reservation Protocol .......................6 3.2.3. Resource Reservation Capable Router .................7 3.2.4. Reservation State ...................................7 3.2.5. Resource Reservation Protocol Orientation ...........8 3.3. Router Load Factors ........................................9 3.3.1. Best-Effort Traffic Load Factor .....................9 3.3.2. Distinguished Traffic Load Factor ..................10 3.3.3. Session Load Factor ................................11 3.3.4. Signaling Intensity Load Factor ....................11 3.3.5. Signaling Burst Load Factor ........................12 3.4. Performance Metrics .......................................13 3.4.1. Signaling Message Handling Time ....................13 3.4.2. Distinguished Traffic Delay ........................14 3.4.3. Best-effort Traffic Delay ..........................15 3.4.4. Signaling Message Deficit ..........................15 3.4.5. Session Maintenance Capacity .......................16 3.5. Router Load Conditions and Scalability Limit ..............17 3.5.1. Loss-Free Condition ................................17 3.5.2. Lossy Condition ....................................18 3.5.3. QoS Compliant Condition ............................19 3.5.4. Not QoS Compliant Condition ........................20 3.5.5. Scalability Limit ..................................20 4. Security Considerations ........................................21 5. Acknowledgements ...............................................21 6. References .....................................................21 6.1. Normative References ......................................21 6.2. Informative References ....................................21 1. Introduction Signaling-based resource reservation using the IntServ paradigm [4] is an important part of the different Quality of Service (QoS) provisioning approaches. Therefore, network operators who are planning to deploy signaling-based resource reservation may want to examine the scalability limitations of reservation capable routers and the impact of signaling on their data forwarding performance. Feher, et al. Informational [Page 2] RFC 4883 Benchmarking Terms for RR Capable Routers July 2007 An objective way of quantifying the scalability constraints of QoS signaling is to perform measurements on routers that are capable of IntServ-based resource reservation. This document defines terminology for a specific set of tests that vendors or network operators can carry out to measure and report the signaling performance characteristics of router devices that support resourceShow full document text