I am having some difficulties involving using a Cisco 7200 router to terminate ATM sessions from a motorola nextlevel IPTV system. The router is currently configured to use IRB which is a hybrid process. The problems is that the IRB process is overloaded and is dropping traffic faster than it can process it. I opened a case with Cisco TAC, and they recommended using RBE instead of IRB. While I have been trying to plan migrating the system to RBE I discovered that Motorola uses a concept called "dynamic pvc's" to assign the pvc's to the CPE devices (a IPTV unit that has a data port). The device uses two PVC's one for data and one for IPTV. The system dynamically assigns the PVCs when the CPE devices connects. This looks like it would not work with RBE, since the pvc can change before the dhcp lease expires. Having this router dropping traffic, has been causing severe problems for end users and is causing an ongoing system outage. I am currently trying to work with both Motorola and Cisco, however both vendors are blaming the problem on the other vendor. I am not sure what to do. Motorola says their system only works with IRB and Cisco says the router will not function with this size network using IRB. Has anyone else arrived at a working solution using a Cisco 7200 router to terminate a Motorola nextlevel system support approximately 2000-3000 end users. I would be extremely gratefull if anyone who has worked with this type of system could help shed some light on this problem. Thank you in advance. -- Brian Raaen Network Engineer braaen (at) zcorum (dot) com