FYI. A more readable version is here:
http://www.xmpp.org/internet-drafts/draft-saintandre-xmpp-presence-analysis-01.html I double-checked the numbers, but they still seem a bit incredible to me, so if someone has time to check them I'd much appreciate it! Here is the conclusion of the analysis... *** With respect to presence scaling, the differences between XMPP systems and SIP-based systems are startling. In particular, this analysis indicates that XMPP requires only about 1.5% of the bandwidth required by SIMPLE. There are two primary causes for this disparity: (1) XMPP requires only about 25% of the packets required by SIMPLE and (2) XMPP packets are about 5% of the size of SIMPLE packets for presence notifications and 20% of the size for subscribe packets. Together, these two factors appear to result in a significant disparity with respect to the scalability of presence technologies. Naturally, real-world studies of deployed systems will be necessary to determine if these theorized differences occur in reality. *** -------- Original Message -------- A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Interdomain Presence Scaling Analysis for the Extensible Messaging and Presence Protocol (XMPP) Author(s) : P. Saint-Andre Filename : draft-saintandre-xmpp-presence-analysis-01.txt Pages : 17 Date : 2007-10-02 This document analyzes the scalability of presence sharing between domains that federate using the Extensible Messaging and Presence Protocol (XMPP). This analysis is provided as a source of comparison with a similar analysis being performed regarding the presence extensions to the Session Initiation Protocol (SIP). A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-saintandre-xmpp-presence-analysis-01.txt
smime.p7s
Description: S/MIME Cryptographic Signature
