What I want is a better switch (I have an old 1900), I can afford a cat5k but I would like to buy something less pricey if it will perform as well in a lab environment. What models will work? What do I need to know about each? Modules, versions and such? Any help will be greatly appreciated. FYI, my current equipment list, Ethernet Hubs 2 Token Ring MAUs 2 ISDN Lines Cisco 2501 Router 2 Cisco 2503 Routers Cisco 2504 Router Cisco 2512 Router Cisco 4000M+ Router with 4 serials and 2 Ethernet Cisco 4000 Router with 2 serials and 1 Ethernet and 1 token ring Cisco Catalyst 1900 Switch TIA, Constance Cate _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]