As a person who works on Tivoli in a Retail environment, people ask me all the time of how Tivoli impacts their network. Now for some, this may not be a big deal, especially if you are using Tivoli in a datacenter (you and your big pipes) but in Retail, there are still some Retailers still on *gasp* dial up and there are ones that are on T1 and finally there are the really lucky few who are on MPLS. Long story short, if you're using software that runs on Tivoli Management Framework like Tivoli Enterprise Console 3.9 and/or IBM Remote Management Agent 1.0/2.0 (IBM Retail Hardware Monitoring), check out this article on IBM DeveloperWorks that helps you understand how to size the impact of Tivoli on your network and on your hardware.
Note: All of these components aligns to the IBM Store Integration Framework and/or components of WebSphere Remote Server.
Performance analysis report on Remote Management Agent and Tivoli Enterprise Consolehttp://www-128.ibm.com/developerworks/websphere/library/techarticles/0603_brown/0603_brown.html