draft-ietf-bmwg-igp-dataplane-conv-app-12.txt   draft-ietf-bmwg-igp-dataplane-conv-app-13.txt 
Network Working Group Network Working Group
INTERNET-DRAFT INTERNET-DRAFT
Expires in: August 2007 Expires in: January 2008
Intended Status: Informational Intended Status: Informational
Scott Poretsky Scott Poretsky
Reef Point Systems Reef Point Systems
February 2007
Considerations for Benchmarking Considerations for Benchmarking
IGP Data Plane Route Convergence IGP Data Plane Route Convergence
<draft-ietf-bmwg-igp-dataplane-conv-app-12.txt> <draft-ietf-bmwg-igp-dataplane-conv-app-13.txt>
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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make the intent of standards track documents as clear as possible. make the intent of standards track documents as clear as possible.
While this document uses these keywords, this document is not a While this document uses these keywords, this document is not a
standards track document. standards track document.
3. Factors for IGP Route Convergence Time 3. Factors for IGP Route Convergence Time
There are four major categories of factors contributing to the There are four major categories of factors contributing to the
measured Router IGP Convergence Time. As discussed in [Vi02], measured Router IGP Convergence Time. As discussed in [Vi02],
[Ka02], [Fi02], [Al02] and [Al00], these categories are Event [Ka02], [Fi02], [Al02] and [Al00], these categories are Event
Detection, Shortest Path First (SPF) Processing, IGP Advertisement, Detection, Shortest Path First (SPF) Processing, IGP Advertisement,
and Forwarding Information Base (FIB) Update. These have numerous and Forwarding Information Base (FIB) Update. These have numerous
components that influence the convergence time. These are listed components that influence the convergence time, as listed below:
as follow:
IGP Data Plane Route Convergence IGP Data Plane Route Convergence
-Event Detection- -Event Detection-
Physical Layer failure indication time Physical Layer failure indication time
Layer 2 failure indication time Layer 2 failure indication time
IGP Hello Dead Interval IGP Hello Dead Interval
-SPF Processing- -SPF Processing-
SPF Delay Time SPF Delay Time
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9.1 Normative References 9.1 Normative References
[Br97] Bradner, S., "Key words for use in RFCs to Indicate [Br97] Bradner, S., "Key words for use in RFCs to Indicate
[Ca90] Callon, R., "Use of OSI IS-IS for Routing in TCP/IP [Ca90] Callon, R., "Use of OSI IS-IS for Routing in TCP/IP
and Dual Environments", RFC 1195, December 1990. and Dual Environments", RFC 1195, December 1990.
[Mo98] Moy, J., "OSPF Version 2", RFC 2328, IETF, April 1998. [Mo98] Moy, J., "OSPF Version 2", RFC 2328, IETF, April 1998.
[Po07m] Poretsky, S., "Benchmarking Methodology for IGP Data [Po07m] Poretsky, S., "Benchmarking Methodology for IGP Data
Plane Route Convergence", Plane Route Convergence",
draft-ietf-bmwg-igp-dataplane-conv-meth-12, work in draft-ietf-bmwg-igp-dataplane-conv-meth-13, work in
progress, February 2007. progress, July 2007.
[Po07t] Poretsky, S., "Benchmarking Terminology for IGP Data [Po07t] Poretsky, S., "Benchmarking Terminology for IGP Data
Plane Route Convergence", Plane Route Convergence",
draft-ietf-bmwg-igp-dataplane-conv-term-12, work in draft-ietf-bmwg-igp-dataplane-conv-term-13, work in
progress, February 2007. progress, July 2007.
9.2 Informative References 9.2 Informative References
[Al00] Alaettinoglu, C., Jacobson, V., and Yu, H., "Towards [Al00] Alaettinoglu, C., Jacobson, V., and Yu, H., "Towards
Millisecond IGP Convergence", NANOG 20, March 2000. Millisecond IGP Convergence", NANOG 20, March 2000.
[Al02] Alaettinoglu, C. and Casner, S., "ISIS Routing on the [Al02] Alaettinoglu, C. and Casner, S., "ISIS Routing on the
Qwest Backbone: a Recipe for Subsecond ISIS Convergence", Qwest Backbone: a Recipe for Subsecond ISIS Convergence",
NANOG 24, March 2002. NANOG 24, March 2002.
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