RE: Congestion Definition in dsmterm03
Perser, Jerry <jerry.perser <at> spirentcom.com>
2002-10-17 20:13:30 GMT
Thanks for the RFC 1254 pointer. I will be adding it to dsmterm references.
After reading RFC 1254, it agrees with David Newman's comments. I found
five different references to congestion and loss. I would like to quote you
section 3.5 Fair Queueing, "On congestion, packets are dropped from the
longest queue." In section 1.1, they talk about a "quantitative definition"
based on "resource power" The problem is "resource power" is ambiguous as
long as the value of alpha is not standard (section 2.2).
Weather we congest the device, gateway, outbound, or egress-port-overuse
will be in the methodology document. The terminology is defining what a
congested [device, gateway, outbound, egress-port-overuse] is. In the
methodology document, we will be using [device, gateway, outbound,
egress-port-overuse] to show where the loss should be happening.
Do you have examples where congestion occurs and fails RFC 1254, Mr.
Polit's, dsmterm ID's definition based on loss?
Jerry Perser Phone: 818.676.2320
Director of Test Methodology Lab: 818.676.2337
Netcom Systems Inc. Cell: 818.292.6457
26750 Agoura Road Fax: 818.880.9165
Calabasas, CA, 91302 Corp: 818.676.2300