I am pleased to announce the Utah Emulab testbed's integrated and documented support for IXP1200's. Currently we have 8 cards installed; all are publicly available to anyone with a valid research, educational, or development use, by signing up at www.emulab.net. http://www.emulab.net/tutorial/docwrapper.php3?docname=ixp.html Similar to other Emulab resources, an IXP1200 node can be allocated through an 'ns' script or through the Netbuild GUI. It can be configured as part of an arbitrary topology (of PCs, IXPs, or other node types), with end-nodes, traffic generators, routers, links, etc. Through NFS it has access to /proj and your Emulab home directory. You can configure a command to run automatically upon bootup. You have full access to the serial consoles of both the IXP and its host PC, which you can power cycle and of course reboot. All that makes it easy to allocate, experiment with, and evaluate an IXP-based application. Right now we have 8 ENP2505 (Bridalveil) cards installed, with Intel SDK 2.01 software. We hope to incorporate more IXP1200 nodes as we make space in our machine room, and also IXP2400 cards as development resources permit. Many thanks go to Intel for helping to support this work, to NSF of course, to the Emulab crew who helped develop it, and most especially to our former student Abhijeet Joglekar, who became our IXP expert.... and is now working at Intel. Jay Lepreau University of Utah