Thread: Upload Speeds
View Single Post
Old 16-06-2006, 02:13   #11
James Henry
Permanently Banned
 
James Henry's Avatar
 
Join Date: Apr 2006
Posts: 562
James Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these partsJames Henry is just so famous around these parts
Re: Upload Speeds
It'd be more accurate to say that usage patterns and the manner in which DOCSIS copes with upstream congestion, with far less grace than downstream congestion to say the least, is a major cause.

Proportionately more upstream is used than downstream. Check an average ADSL provider's traffic graphs. Inspite of most customers upstreams being 8 or more times lower than their downstreams the ratio of upstream to downstream usage is only going to be about 2:1 in favour of downstream due mostly to people running P2P 24x7 with some running FTP/HTTP servers.

Upstream traffic is far less bursty than downstream. With some traffic shaping it may be an option to increase the upstreams. Telewest are a classic example of how strained unlimited services can be on cable, 10Mbit downstream and 384k upstream.

So it's part technical and part usage patterns.
James Henry is offline   Reply With Quote