I'm in the process of finalizing new updates to the Service Provider CCIE racks and publishing the new hardware specification. I'm going to be using the new hardware specification for my London SPv3 Bootcamp in two weeks before releasing it to the public. I've already replaced the two CE 2600XMs with four 1841's running IOS 15.1T for the CEs. This allows for additional IPv6 VRF support along with many other newer features on the CE devices. Also having 2 extra CE devices is nice.
Edit: This topology has been deprecated and replaced by a similar but simpler topology used in INE's CCIE SPv3 Lab Workbook. More information about this topology is available here. Per the request of many candidates, I've finished putting the final touches on the hardware topology that will be used for our new CCIE SPv3.0 Advanced Technologies Class and Workbooks. The topology consists of 20 routers - 2 of which are IOS XR 3.9.1, 6 of which are 7200VXRs, and 12 of which are 2600XMs - and 2...